This is probably common enough knowledge if you use Siri often, but I don’t so here I am: If you ask Siri, at least on HomePod, “how long until my next alarm”, the answer will include alarms that are turned off.
This morning, my kid set an alarm for his next school meeting, but got the time wrong. I told Siri to “cancel the alarm”. Siri confirmed the alarm had been turned off. Then my kid correctly set an alarm.
A while later, my kid asked how long until his class. So we asked Siri “how long until my alarm”. Siri gave an incorrect time. Took me a minute to figure out the time was until the first, canceled alarm.
I asked Siri “what are my alarms”, and it listed both (but confirmed the incorrect one was turned off). I deleted the incorrect one.
Now asking “how long until my alarm” gives the right answer. It was confusing to me that asking “how long until my alarm” would include an alarm that’s turned off, but maybe there are situations where that would make sense.
One from the cellar.
Election night pizza, self-serve edition
After nearly an hour in line I have reached the official social distancing markers.
I’ve been using Tweetnest to download and archive my tweets for some time now. I set it up some time ago, and generally, it just runs. I think I’ve had to go reboot the cronjob it uses to collect new tweets once or twice. I just added a feature to automate finding tweets “on this day” from prior years.
Background
Tweetnest, if you’re unfamiliar, is a self-hosted app to collect all your tweets and present them nicely in a way that’s separate from Twitter’s interface. It collects everything into a mySQL database, and is written in PHP. It’s nice to have a backup of Tweets kept separate from Twitter.
The main page just displays recent tweets, but it also lets you search, and has month and day pages. It’s a nice, calm interface for exploring or searching old Tweets of yours, which comes in more handy than you’d think.
I have been using Micro.blog more, through this site, which solves some of those problems. But even if I left Twitter today, having this backup and nice interface to it would be valuable, so I figured it was worth doing a little writeup on.
Ok, so what’s the new feature?
As I said I haven’t really touched the site since installing it, and mostly it works fine. But I recently went in a made a tweak, which is the impetus for this post.
One thing I’ve been doing recently is checking out my Tweets “on this day” to see what was going on last year, five years ago, even a decade ago. Twitter doesn’t have a function for this natively, and neither does Tweetnest.
I started out just by visiting the pages on Tweetnest sequentially. The daily page URLs are formatted year/month/day, so you can visit last year’s pretty easily, then just change the year in the URL, see the new ones, and so on. But this is tedious and occasionally there are no Tweets on a given day so it’s a waste of time.
I quickly tired of that, and wrote a little Keyboard Maestro macro to get the current date, format the URL properly, and open tabs in my browser, one for each year between one year ago and when my archive starts in 2008. This is pretty good, but it only works on desktop, not mobile, and it still suffers from the case when there are no tweets on a day (it just opens a tab that says “No tweets here!”).
Finally, I decided to create a proper solution. I built a page for the site that gets the current day and month, then queries the database for tweets that happened today, and presents them.
The code
This was pretty simple and required no innovation on my part. I just modified the code for a specific day to remove the year, and added logic to get the date from the current date, instead of the URL. It’s functional, but since I don’t know PHP it’s quite possible I’ve done something wrong. Here’s the query:
date_default_timezone_set('America/Chicago');
$day = date("d");
$month = date("m");
...
query("SELECT `".DTP."tweets`.*, `".DTP."tweetusers`.`screenname`, `".DTP."tweetusers`.`realname`, `".DTP."tweetusers`.`profileimage` FROM `".DTP."tweets` LEFT JOIN `".DTP."tweetusers` ON `".DTP."tweets`.`userid` = `".DTP."tweetusers`.`userid` WHERE MONTH(FROM_UNIXTIME(`time`" . DB_OFFSET . ")) = '" . s($month) . "' AND DAY(FROM_UNIXTIME(`time`" . DB_OFFSET . ")) = '" . s($day) . "' AND `".DTP."tweets`.`hidden` = 0 ORDER BY `".DTP."tweets`.`time` DESC");<br>
Next, I modified the .htaccess file to run the new php file at a particular URL (I called mine “/today”), and the inc/html.php file to include a link to “/today” in the sidebar. And that’s that. Now I can visit that link and see all the tweets posted through the years on a single page. You can see my modifications on my Github fork of the project.
Other enhancements
One other thing about Tweetnest is that it hasn’t been officially updated to include the new, longer Tweets. So some folks who use it have modified it to take advantage of those. You can see those changes in my previous commit, or in various issues in the main repository.
One shortcoming
A thing I noticed while working on this was that, because I hadn’t made the long-tweets upgrade until now, many prior tweets are truncated (Twitter increased the length at the end of 2017).
One suggestion in the Github issues was to remove all tweets since the lengthening and re-import them.
Tweetnest has two ways of importing tweets: The loadtweets.php file and the loadarchive.php file.
Loadtweets is the thing that runs on a cronjob, so usually it’s only grabbing a handful of tweets at a time. It uses Twitter’s API to get tweets, and so is limited to 3,200. This, unfortunately, isn’t quite far enough to get all my Tweets since the change (it also hits a memory error when trying to load that many).
Loadarchive was built to consume json files you can download from Twitter that contain your archive. Twitter limits public access to tweets to the last 3,200, but it will compile your data and let you download all of your tweets.
Unfortunately, the format of this archive has changed since this function was written for Tweetnest. I attempted this route, but ran into a couple roadblocks:
The link to the tweet on Twitter is missing its username. Tweetnest generates the Tweet, but wherever it’s trying to grab the username from to generate the link is missing, and so the URL it links to is just missing a piece.
Retweets are messed up. In prior archives (and in current API calls) you seem to get much more information about retweets than you do in the archive. And so when you load tweets from the archive, Retweets aren’t able to get the original tweet.
There are probably ways around both of these problems for someone more versed in PHP and/or Twitter’s API/data than I am, but since new tweets should come in at their full length and new retweets are ok, it’s not vital to fix these problems. (If you do tackle this, please let me know).
Conclusion
Tweetnest is pretty great, especially for some free software written nearly a decade ago. It’s nice to be able to hack on things and add features that make your life slightly easier.
I realize I didn’t catalog the games my wife and I played at Geekway to the West 2019 back in May, so here they are with a few thoughts, a couple months removed from playing:
The biggest change in the new year of course is the birth of my second child. I also applied for and was chosen to teach a data journalism class at SIU-Carbondale beginning in the Spring. Other than that, I don’t know. After reviewing the year, I mostly just feel exhausted.
Personally
The aforementioned child was born by the time February was here, so we spent most of the year adjusting to raising two kids instead of one.
Trips
Took mostly small trips, in town.
In April, we visited the St. Louis Science Center during an exhibit featuring the command module Columbia from the Apollo 11 mission. It was a surprisingly moving experience to be in the presence of it.
Also went to a Cardinals game with my Dad in April, to the Zoo in May, the Transportation Museum in June, a Cardinals game in June, Grant’s Farm and the Arch in August, the Arch again in September, and the Garden Glow at the Botanical Garden in December.
A couple larger trips my family took were to take the new baby to visit my family in May, another trip back there in Christmas and a trip to Carbondale, Ill. to fill out some paperwork for the job, when we also took in a football game and spent a day at Giant City State Park.
In June I also stopped by Chicago for a day on my way home from a work conference and got to hang out with a friend and his family.
Home Improvement
Didn’t do much to our house this year, unfortunately. Did clean out the back fence line again this fall, and dug out an old lava-rock-lined flower bed on the north side of the lot. Also bought a new battery-powered lawnmower and weed trimmer, which are working out well.
Hobbies
The singing with Greenleaf continues, beginning with a concert in January, as well as singing a bit at one of our member’s weddings. We also performed at the Renaissance Faire in Wentzville for three weekends, the concert at Eliot and our own concert in December. We finally sold tickets online for the first time for our own concert and that seemed to work well.
In February, I made a weather status indicator out of a Raspberry Pi and a Blinkt! module. Later in the month, I used a Scroll pHat HD and a Pi to animate a customizeable rainstorm. Inspired by the movie ‘Desk Set’ and its 1950s computer mainframe prop, I also coded up a version of that.
I think I played exactly one round of golf this year, at the Prairies in Cahokia.
In May, Pam and I went to “Geekway to the West”, a board game convention in St. Charles. They have a game library with all different kinds, vendors and publishers running demos, and lots of door prizes. Between Thursday and Sunday, I played 22 games. It was a lot of fun — we plan on going back again this year.
In August, I managed to finally use some scrap leather I bought at the Renaissance Faire the previous year to make a lcase for my AirPods. Turned out pretty good, and it was fun making it, although I haven’t done anything else with it.
In September, I somehow got it in my head to go thrift store hunting. The first time out went pretty well, yielding a Gitman Bros. blue oxford shirt, a Land’s End pink OCBD, a Brooks Bros. broadcloth shirt and some Banana Republic Traveler Jeans. Around the same time I also nabbed a deal on a pair of new Levi’s for $13. Later in the year I got a couple new Jos. A. Bank corduroy jackets for $20 each, so I was feeling pretty well dressed by the end of the year.
In October, Pam and I went to a board game cafe, Pieces. It was a good time. We played Jaipur, Hive, Medieval Academy and Potion Explosion.
I keep on taking pictures. I bought a used Rokinon 85mm f1.4 lens, which I really enjoy using. Also got a 12mm f2 for Christmas this year, so I’ll be trying that out more too.
Arts
A NYT article in early January led me to ‘Force Majeure’ a weird, dark movie about relationships in a Swedish family on a ski trip. It was good, and one of those splinter-in-your-brain-type movies. It was a 2014 movie, so nothing new, but new to me.
While in Chicago for a work trip, I got to multitask and go to a Mac Power Users meetup and meet David Sparks, Katie Floyd, and Kourosh Dini, among many other fans of the show. It was a good time.
I watched ‘Jesus Christ Superstar Live’ on NBC on Easter Sunday. It was quite good.
Also in April, I was lucky enough to win the lottery to see Hamilton at the Fox. Pam and I went, and it exceeded expectations. Just incredible.
In August, I got to go see a couple friends performing in R-S Theatrics’ Light in the Piazza, which was delightful. I wasn’t familiar with the show or the soundtrack, and it was quite good.
In October, the “Rushmore of Nerdcore” tour came to the Firebird, with Schaffer the Darklord, Mega Ran, MC Lars and MC Frontalot. I heard MC Frontalot on his last trip through St. Louis, and I’m glad I went again.
I saw the Coen Bros’. Ballad of Buster Scruggs when it came out on Netflix. Not without its issues, but beautifully shot, and thought-provoking.
Finally, in December I happened to catch that TCM was playing White Christmas in a few theaters on a couple nights, so Pam and I went to see that. She really enjoys the movie, and it was nice to see it in a theater.
Food/Booze
My first restaurant meal in 2018, according to my Twitter, was a Courtesy Diner Slinger, so it was pretty much all downhill from there.
I also made it to Squatters Cafe several more times before it closed toward the end of the year. The chef is opening a new restaurant nearby, so I’m looking forward to that.
On the aforementioned Chicago work trip, I went to Portillo’s for the first time. I also went to Eataly, which was a couple blocks down from the hotel and Shake Shack a couple times, which was right across the street.
In September I got to take a VIP tour of the Schlafly Brewhouse downtown. It was interesting to see behind the scenes and in the basement, as well as taste some in-production stuff.
I made Krupnik again, and it turned out great. I took some to one of the Greenleaf cast parties and it seemed to be a hit.
I made some chili for our work chili cookoff in November. It did not win, but I thought it was pretty good. Got to make chili powder from scratch, too.
On Black Friday I managed to nab some bottles of 2018 Bourbon County Barrel Stout at Schnucks, so now I have bottles going back to 2015. Due to accidentally getting some extra 2017, I also cracked open a bottle of that, and it’s delicious, as expected.
Work
Got a new boss, got a new (side) job. Flew the drone a bunch, did a bunch of projects.
New Job
I saw an opening posted for a temporary part-time person to teach a data journalism class at Southern Illinois University Carbondale, where I earned my degree from. It sounded like a good fit, so I applied, and I got it. I’ve been preparing for it ever since, and the first class is in two weeks. I’ll be commuting down there one day a week. So we’ll see how that goes. I’m excited.
And those are mostly just the larger projects, let alone the analyses, maps and daily graphics, tools, etc.
Trips
In March, NICAR was in Chicago. It was good, and more of the same. I helped lead a session on “Learn From My Fail.”
In June, I also got a spot at SRCCON in Minneapolis. A bit higher-level/more conceptual than NICAR is (also smaller), it was great to be able to take a step back for a few days and focus a bit wider than usual.
Drone
We finally got the drone and all the approvals and everything we needed to fly this year, so I got to take it out several times. I flew mostly in St. Louis, taking pictures of the new NGA site, the former Pruitt-Igoe site and St. Louis’ water towers. I also flew at a house that was flooded in 1993, though you couldn’t see the river from the house using the drone. I got it out over the Mississippi River to take some photos and video of the Merchants Bridge. And I took it out after a snowfall in December and got some footage and photos of the Mississippi River from the Illinois side just south of Chain of Rocks Bridge.
I was also on our radio talkshow in May to talk about the drone and how we’d use it, and again in July, this time live, to talk about Temporary Flight Restrictions in place around the President’s visit.
Friday
El Dorado
Azul
Hardback
Sagrada
Cottage Garden
Rising Sun
Whistle Stop
Saturday
Sentient
Photosynthesis
Indian Summer
The Networks
Palace of Mad King Ludwig
Topiary
The Thing: Infection at outpost 13
Jaipur
Bottom of the Ninth
Settlers of Catan: Dice
I’ve a had a few Raspberry Pi Zeros lying around projectless for a while now — they’re just so inexpensive and I love the idea of a tiny cheap computer, so every time there’s a new revision I pick one up at Microcenter. I have an original 1.2, a 1.3 (with the added camera connector) and a Pi Zero W with integrated wireless and bluetooth.
Back when I first started fiddling with the Pis, I bought a few RGB LEDs, but couldn’t get them working right. I’m sure it was a combo of not having the appropriate resistors and user incompetence. I was in Microcenter the other day, and while they did not have a new Pi, they did have a Pimoroni Blinkt: Pre-soldered headers, and 8 individually addressable RGB LEDs with a Python library.
The Blinkt actually fits within the footprint of the Pi — it only looks like it’s overhanging on the sides here because it’s sitting up very high. I have a female header on the Pi and the Blinkt comes with a female header, so there’s a connector in between, making the whole thing about 3/4″ higher than the surface of the Pi.
After plugging it in 1, I installed the library to the Pi. It comes with a bunch of examples to get you started. It’s super-easy to light up a pixel: set_pixel(pixel,r_value,g_value,b_value) for whichever pixels you want to set or update, then show() to send the command 2.
Then I had to decide what to build. I’m not too interested in notification things, like new messages on Twitter or Facebook or new emails or whatever. Those are pretty much on or off, and additionally would require tying into multiple services.
Weather seemed interesting. I’d looked at the Dark Sky API before. There’s a lot of complexity there: Temperature, precipitation, wind, humidity, visibility, clouds, etc. plus looking at current conditions, future conditions, or even past conditions.
Design
Eight LEDs isn’t that many. I wanted to build a status-board type app — no user input (aside from location). But I also wanted to do more than just display current conditions.
I settled on having a number of “screens” the app would cycle through, each displaying a different type of information. I only make use of a max of seven LEDs per screen, leaving one to indicate which screen you’re currently viewing.
(So far) the screens I have are:
Current conditions — displays current temp, low and high in the next 24 hours, and precipitation probability for the current day.
Seven-day low-temperature forecast
Seven-day high-temperature forecast
Seven-day precipitation probability forecast
The display cycles between each screen on a two-second delay. It updates its data from the Dark Sky API every five minutes (probably overkill, but the API gives you 1,000 calls per day for free).
For the temperature displays, I have a scale of < 0° (purple), 0-32° (blue), 32-50° (light blue), 50-65° (green), 65-80° (yellow), 80-95° (orange) and > 95° (red). I’ve also decided to use apparent temperature rather than actual in all cases. Example at left.
For the precipitation, I have < 25% chance (green), 25-75% chance (yellow) and > 75% chance (red). Example at right.
The indicator letting you know you’re looking at current conditions is white, seven-day low temp is blue, seven-day high temp is red, and seven-day precipitation is green. Given the need to clearly indicate which screen you’re on, I’m not sure how many more I’d be able to add without being confusing.
Demo
Unfortunately our weather here in St. Louis isn’t terribly variable at the moment, but here’s a walkthrough of the current displays nonetheless. These are all diffused through an index card as it’s difficult to take a photo of the LEDs directly. The display just cycles through the following four screens.
Current Conditions
The current conditions are: Current temp, 24-hour low and 24-hour high all between 0 and 32°F, and a 25-75% chance of precipitation today. You can see the status indicator light at the far right (it’s white, though it looks blueish in the image).
7-day low temperatures
Pretty simple to read this one: 0-32°F lows all week. Blue status indicator.
7-day high temperatures
Hey, something different! On Thursday, the high temp will be between 32 and 50°F, and on Friday it will be between 50 and 65°F. Red status indicator.
7-day precipitation
Here’s the 7-day precipitation forecast. 25-75% chance of precipitation today, Tuesday, Wednesday and Saturday. Less than 25% chance Monday, Thursday and Friday. Green indicator.
How it works
Here’s the whole program:
import json, time, os.path
import blinkt, requests
status_colors = {'current':[1,1,1],'high':[1,0,0],'low':[0,0,1],'precip':[0,1,0]}
blinkt.set_clear_on_exit()
blinkt.set_brightness(.1)
def getForecast(key,lat,lng):
url = 'https://api.darksky.net/forecast/' + key + '/' + str(lat) + ',' + str(lng)
stl = requests.get(url)
return stl.json()
def getTempColor(temp):
if temp &lt;= 0:
color = [10,0,30]
elif temp &lt;= 32:
color = [0,0,30]
elif temp &lt;= 50:
color = [0,15,30]
elif temp &lt;= 65:
color = [0,30,0]
elif temp &lt;= 80:
color = [60,20,0]
elif temp &lt;= 95:
color = [60,10,0]
else:
color = [30,0,0]
return color
def getStoplightColor(prob,low,high):
if prob &lt; low:
color = [0,30,0]
elif prob &lt; high:
color = [60,20,0]
else:
color = [30,0,0]
return color
def showSevenDayTemps(temps, which):
blinkt.clear()
# set status light
color = status_colors[which]
blinkt.set_pixel(7,color[0],color[1],color[2])
for i in range(7):
color = getTempColor(temps[i])
blinkt.set_pixel(i,color[0],color[1],color[2])
blinkt.show()
def showSevenDayPrecip(precip, which):
blinkt.clear()
# set status light
color = status_colors[which]
blinkt.set_pixel(7,color[0],color[1],color[2])
for i in range(7):
color = getStoplightColor(precip[i],.25,.75)
blinkt.set_pixel(i,color[0],color[1],color[2])
blinkt.show()
def showCurrent(data):
blinkt.clear()
# set status light
color = status_colors['current']
blinkt.set_pixel(7,color[0],color[1],color[2])
# get current temp (use color scale)
color = getTempColor(data['temp'])
blinkt.set_pixel(0,color[0],color[1],color[2])
# daily high and low (use color scale)
color = getTempColor(data['low'])
blinkt.set_pixel(1,color[0],color[1],color[2])
color = getTempColor(data['high'])
blinkt.set_pixel(2,color[0],color[1],color[2])
# precip (red, yellow, green)
color = getStoplightColor(data['precip'],.25,.75)
blinkt.set_pixel(3,color[0],color[1],color[2])
blinkt.show()
def prepData(forecast):
data = {'lows': [], 'highs': [], 'precip': [], 'current': {}}
for day in forecast['daily']['data']:
data['lows'].append(day['apparentTemperatureLow'])
data['highs'].append(day['apparentTemperatureHigh'])
data['precip'].append(day['precipProbability'])
curr_temp = forecast['currently']['apparentTemperature']
data['current']['temp'] = curr_temp
data['current']['low'] = curr_temp
data['current']['high'] = curr_temp
for hour in forecast['hourly']['data'][:24]:
if hour['apparentTemperature'] &lt; data['current']['low']: data['current']['low'] = hour['apparentTemperature'] if hour['apparentTemperature'] &gt; data['current']['high']:
data['current']['high'] = hour['apparentTemperature']
data['current']['precip'] = forecast['daily']['data'][0]['precipProbability']
return data
forecast = None
cur_time = time.time()
interval = 5*60
delay = 2
while True:
if forecast is not None and (cur_time + interval) &gt; time.time():
pass
else:
forecast = getForecast( [api key] ,38.6270,-90.1994)
data = prepData(forecast)
cur_time = time.time()
showCurrent(data['current'])
time.sleep(delay)
showSevenDayTemps(data['lows'], 'low')
time.sleep(delay)
showSevenDayTemps(data['highs'], 'high')
time.sleep(delay)
showSevenDayPrecip(data['precip'], 'precip')
time.sleep(delay)
First, we’re importing the necessary packages, including blinkt to control the LEDs and requests to access the API. The status_colors variable is a dict of the screens and their associated indicator colors. The next two functions tell the script to clear out all the lights when the program exits, and to set the default brightness of the LEDs to the minimum (you can control the brightness individually when you set the pixel, though anything more than the minimum is very bright.
interval and delay are about timing, but different things. interval determines how long to wait before getting a new update from the API. As written, the program makes a new call every five minutes. The Pi Zero doesn’t have a real time clock, so if I need the actual time I have to sync it from the Internet somewhere. But I realized I don’t actually need to know real time, only elapsed time. So I get whatever time the Pi thinks it is when the program starts (cur_time = time.time()) and then just check how much time has elapsed to see if I need an update from the API.
delay determines how long to pause on each screen. Right now it’s set at two seconds, which is probably as quick as I’d want it to be. A touch slower might be better.
Next is a loop that runs continuously while the program is running.
while True:
if forecast is not None and (cur_time + interval) &gt; time.time():
pass
else:
forecast = getForecast( [API key here] ,38.6270,-90.1994)
data = prepData(forecast)
cur_time = time.time()
First I have to determine whether or not to hit the API for a new forecast. I need to get a new forecast whenever I either don’t have one at all (e.g. the user has just started the program) or if it’s out of date. So the first condition (line 112) just says if both of those conditions are false, I don’t need a new one.
If I do need a new one, I go get it (getForecast()), passing in my API key, and the lat/lng of the location. One enhancement might be asking the user for a lat/lng on run, or even a city/state or ZIP and geolocating. Here’s the getForecast() function:
Pretty straightforward. The API has a few optional parameters, but a basic call like this gets everything. The function returns the json response.
After I’ve got the data, I do a little prep to make it easier to work with. That’s prepData() on line 116. Here it is:
def prepData(forecast):
data = {'lows': [], 'highs': [], 'precip': [], 'current': {}}
for day in forecast['daily']['data']:
data['lows'].append(day['apparentTemperatureLow'])
data['highs'].append(day['apparentTemperatureHigh'])
data['precip'].append(day['precipProbability'])
curr_temp = forecast['currently']['apparentTemperature']
data['current']['temp'] = curr_temp
data['current']['low'] = curr_temp
data['current']['high'] = curr_temp
for hour in forecast['hourly']['data'][:24]:
if hour['apparentTemperature'] &lt; data['current']['low']: data['current']['low'] = hour['apparentTemperature'] if hour['apparentTemperature'] &gt; data['current']['high']:
data['current']['high'] = hour['apparentTemperature']
data['current']['precip'] = forecast['daily']['data'][0]['precipProbability']
return data
This takes the entire forecast returned by the API and whittles it down into just the datapoints that I need. First I create a dict with no data in it to clear out any existing data. Next I get the seven-day forecasts for low, high and precipitation, creating a list for each measurement. Finally I work on the current conditions. I decided to display the current temperature, the low and high for the next 24 hours and the current day’s precipitation probability. So I set all three values equal to the current temp, then loop through the first 24 hours and update the low or high value whenever I find one that’s lower or higher than the one already stored. I may decide to do the same thing with the precipitation probability. As it is now, the “current” screen just shows the current day’s chance of precipitation, which isn’t that useful at 10 p.m.
Then after I’ve updated the data from the API and prepared the data, I update cur_time to the current system time (line 117), so I won’t check the API again until the interval has passed.
I have three functions called four times, each one followed by a delay. The first screen shows current conditions:
def showCurrent(data):
blinkt.clear()
# set status light
color = status_colors['current']
blinkt.set_pixel(7,color[0],color[1],color[2])
# get current temp (use color scale)
color = getTempColor(data['temp'])
blinkt.set_pixel(0,color[0],color[1],color[2])
# daily high and low (use color scale)
color = getTempColor(data['low'])
blinkt.set_pixel(1,color[0],color[1],color[2])
color = getTempColor(data['high'])
blinkt.set_pixel(2,color[0],color[1],color[2])
# precip (red, yellow, green)
color = getStoplightColor(data['precip'],.25,.75)
blinkt.set_pixel(3,color[0],color[1],color[2])
blinkt.show()
blinkt.clear() is part of the blinkt library that sets all the pixels to nothing. This just ensures that nothing carries over from the other screens.
Next, I set the status indicator. This uses the status_colors dict to get the color, and blinkt.set_pixel() to set the last pixel to the color (in this case, white).
The first three pixels indicate current temperature, 24-hour low and 24-hour high, respectively. I wrote a getTempColor() function to return the appropriate color. Here it is:
def getTempColor(temp):
if temp &lt;= 0:
color = [10,0,30]
elif temp &lt;= 32:
color = [0,0,30]
elif temp &lt;= 50:
color = [0,15,30]
elif temp &lt;= 65:
color = [0,30,0]
elif temp &lt;= 80:
color = [60,20,0]
elif temp &lt;= 95:
color = [60,10,0]
else:
color = [30,0,0]
return color
It just takes a temperature and figures out which bucket it falls into, returning the appropriate color. I chose the breakpoints somewhat arbitrarily. I knew I didn’t want to have too many colors to distinguish between, so that limited the number of buckets. The buckets and colors are:
Really really cold (< 0°F) — purple
Below freezing — dark blue
Cold — light blue
A little chilly — green
Nice — yellow
A little warm — orange
Really hot – red
The fourth pixel on the current screen gives the precipitation probability. I wrote a getStoplightColor() function to take a probability and two thresholds and return a stoplight value. Here’s that one:
def getStoplightColor(prob,low,high):
if prob &lt; low:
color = [0,30,0]
elif prob &lt; high:
color = [60,20,0]
else:
color = [30,0,0]
return color
Pretty simple there. For precipitation, I decided to go with buckets of less than 25%, 25-75% and greater than 75%, showing green, yellow and red respectively.
I’m only using four pixels, plus the status indicator on the current screen. Once I have those all set, all that’s left is to call blinkt.show() to update the display.
The next two screens are the seven-day low and seven-day high temperature forecasts. Those both use the same function, showSevenDayTemps(), which takes the data and which value it is (high or low). Here’s that function:
def showSevenDayTemps(temps, which):
blinkt.clear()
# set status light
color = status_colors[which]
blinkt.set_pixel(7,color[0],color[1],color[2])
for i in range(7):
color = getTempColor(temps[i])
blinkt.set_pixel(i,color[0],color[1],color[2])
blinkt.show()
Again I clear the pixels of their previous values and set the status pixel. Next is simply stepping through the list of temperatures, getting the correct color with getTempColor() and setting the pixel. After I’ve done all that, I call blinkt.show() to update the display.
And finally, we have the seven-day precipitation forecast, with showSevenDayPrecip():
def showSevenDayPrecip(precip, which):
blinkt.clear()
# set status light
color = status_colors[which]
blinkt.set_pixel(7,color[0],color[1],color[2])
for i in range(7):
color = getStoplightColor(precip[i],.25,.75)
blinkt.set_pixel(i,color[0],color[1],color[2])
blinkt.show()
This is almost identical to the temps function, except it calls getStoplightColor() instead.
And that’s it — the program just cycles through that while True loop, updating the data from the API as necessary.
Overall, the Blinkt is really easy to work with, mostly due to the library it ships with and the fact that there are only 8 LEDs to manage. It can be tricky to get the LEDs to display the color you’re looking for — adjusting yellow to be distinguishable from orange, for example. The brightness is also tricky to manage — brighter colors are easier to differentiate, but a white pixel at full brightness is painful to look at unless you’re using a diffuser of some kind. If you want to mount this permanently with a diffuser, you’d probably want to modify the code to account for it.
Some other stuff I’ve thought of that might be useful to add:
Ask user for location at runtime
Screen depicting image of current weather (e.g. oriented vertically, a clear day would be one bright yellow pixel for the sun, several bright blue pixels for the sky, and one green pixel for the ground). Could perhaps even animate between screens to show progress over a day or something
Blinking current precipitation indicator to show it’s happening now or soon, rather than just probability
Blinking alert indicator to show any weather alerts
Moon phase indicator
Cloud cover indicator
Start script automatically on boot to allow running without computer connection (would need Wi-Fi adapter, and automatic internet connection)
In conclusion: It’s a fun project with lots of opportunities to continue hacking on.
I had already soldered some headers onto one of my Pis, but unfortunately I couldn’t get the Blinkt working. It did work on another Pi, so I figured it was my soldering job. I de-soldered and re-soldered the headers from the Pi and it works now. ↩
There are also commands to clear out all the pixels, set them all to be the same, and change the brightness of all pixels at once, among others. ↩
I haven’t really done one of these before, so here goes.
Personally
The biggest news was finding out we’re having a second kid. That should happen within a month, so we’ve been anticipating it most of the year. Decided this time around to not find out if it’s a boy or girl, thus doubling the difficulty of choosing a name.
The current kid grows up more and more each week (as happens, I suppose). One of the most surprising things was when he began singing more: On the way home from school one day he knocked out a pretty good rendition of the National Anthem, and toward the end of the year he started singing a handful of Christmas carols including about three verses of Deck the Halls as well as more words of Feliz Navidad than I know. He keeps saying he wants a baby sister but we’ll see how it goes.
Trips
We took a few trips this year: We all took Amtrak to Washington D.C. for a week in May/June. I had a work conference there and Pamela and Maxwell came along. We got to see the sights and met up with Kate, Kevin and Ann, friends of mine from high school. Went to the Smithsonian Museum of Natural History, which was pretty cool. Bought a bunch of rocks as souvenirs. Flew back, Maxwell’s first time on a plane. He did fine — didn’t really realize what was going on, I think.
Also went back to Danville in July for my aunt’s birthday party. The hot-air balloon festival happened to be going on then too, so we went out to the airport to see that. Also went back in November for Thanksgiving, instead of for Christmas, because of the new baby.
Not really an out of town trip, but we did go over to Columbia, Ill. to see the eclipse. I really enjoyed it. Not sure how to put it into words.
Went on a couple other work trips.
Home improvement
Got some work done around the house: Took a tree down in the backyard that was pushing the fence into the neighbor’s yard and got the one in front pruned. Also cleared out much of the invasive honeysuckle bush along the back fence, hoping to plant a hedge there in the spring. My friend Katheryn offered us a swingset that her kids had outgrown, so Pam’s parents and we went over there to break it down. Put it up in our backyard a couple weeks later when my parents came to visit, so my dad could help. Finally got the deck on the back of the house replaced. Also working on getting the upstairs in shape to move some of the kids’ toys up there and make a little more room for us down here.
Hobbies
Played board games with friends a few times, and learned some new ones: Good Cop, Bad Cop; Arboretum (both played with Barb and Jim); Tiny Epic Galaxies (which I got for Christmas); Lost Cities (which Pam got for Christmas); Tournament at Camelot (bought for a game night with Barb and Jim). Also built a couple Kallax shelves from IKEA to hold our games and books and such to replace some decade-or-more old shelves we had in the dining room.
Didn’t golf at all. Pamela did a bit, but I don’t think I got my clubs out once, even to go to the driving range. I did take up woodcarving for a couple weeks. When I was clearing out the yard I got a branch that I thought might make a good walking stick, and rather than leave the bark on as I did last time, I stripped it. I then got it in my head that it might be nice to carve a design into it. I picked up a basic set of chisels and a hunk of basswood (which I later found out is also Linden, which is coincidentally one of the trees I have) to practice with. Didn’t really get anywhere with it (I have block of wood with something roughly approximating a leaf in low relief on top), but I still have the walking stick branch in the basement so maybe next year.
Kept on singing with Greenleaf. I handled our contract for the Renaissance Faire, which went okay. They insisted on five weekends, which was a bit overwhelming for our group. We took on a couple extra singers just for faire which helped immensely. We also finally nailed things down for a recording and did that in September. Got to sing at Eliot after missing it last year for Pete’s wedding. Also did our concert at Prince of Peace, did the St. Charles Christmas Traditions parade again and sang at the Daniel Boone House in an old chapel lit entirely by candlelight.
Got a new iPad (the 9.7″ iPad pro), and upgraded my phone from a 6 Plus to an 8 Plus. Also backed a Kickstarter by Loog and got a cherry red 3-string electric guitar. Kid likes it too. Got a macro lens for my camera for Christmas and I’m having a great deal of fun with it so far.
Arts
Read fewer books than I should. Borrowed Raven Rock after hearing an NPR interview with the author. It’s about Cold War preparations in the U.S. for nuclear war. Quite thorough, and interesting. I enjoyed it. I also read Jonathan Franzen’s The Corrections and liked it.
I got to see Chris Thile when he came to the radio station to play a show. I met him before he played and told him how much I enjoyed his hosting of The Show Formerly Known as A Prairie Home Companion (it wasn’t “Live From Here” yet) as well as his collaboration with Brad Mehldau, which I’d been listening to a lot of. I’ve mostly just kept up with podcasts — Merlin’s (Back to Work, Reconcilable Differences, and I started listening to Do By Friday), Marco’s (ATP and Under the Radar) and Pete’s (How to Be Awesome at Your Job) as well as some others (99% Invisible, Broadway Backstory, Mortified, The Moth, The Omni Show, etc.). Also S-Town.
In live theater, there wasn’t much. Pamela and I saw The Moth on stage at The Sheldon when our station brought them in, and then I saw my friend Ann in New Line’s The Sweet Smell of Success. That’s about it, really — I need to see more shows.
Food/Booze
Most notably, I got to try some Pappy Van Winkle 12-year at the Royale in January. Pam had taken Maxwell up north to visit her grandparents, leaving me behind. There was a big ice storm here. Steven Smith posted a photo of the bottle on Twitter, saying “A good reason to leave the house. It won’t last long.” I was there in 10 minutes.
In other booze news, I nabbed some 2017 Urban Chestnut Wolpertinger and the 2017 release of the Bourbon County Brand Stout.
I had several notable meals. Anew, an event space near my job, had several “test kitchen/popup” things this year. I went to one in March put on by The Social Affair with some delicious biscuits and gravy. Then there was one in December by Café Osage, where I had a pork schnitzel sandwich on challah bread. Both delicious. And a new place opened up down the street from work, inside KDHX: Squatters Café. I’ve only been twice, but each time has been great.
Work
Did some stuff at work. Lots of staff turnover. A couple trips. Lots of stuff to look forward to.
Projects
Probably the biggest project I worked on was our Millennium Mayor project. It was a limited-run podcast focusing on a handful of days in the tenure of Mayor Slay, at the end of his run. I made a stand-alone website for it, and it turned out not too bad, I think (mostly because of the content, not my work, but still).
Also put together a one-page mayoral candidates guide for the primary race that I particularly liked how it came together.
Did a thing where we graded Missouri legislators. It was…okay. I like the idea, but there’s so much intangible that it would take a lot more human intervention to do well than we allowed for it.
Published our “NFL Tweets” project — an idea by a reporter to ask who St. Louisans were tweeting about in the NFL since the Rams left. It also turned out alright — my largest dataset in a project to date. But that data came with some shortcomings that made it tough to draw conclusions from.
Also did election graphics (of course), census graphics, a timeline of the East Saint Louis riots and a quiz to help figure out if you have the right ID to vote.
Trips
Kicked off the year with a trip to Jacksonville, Florida for NICAR 2017. Good times. The hotel was a bit less conducive to hanging out than in prior years, but overall it was great. It’s always nice to be able to hang out with the folks I usually only ever see online. I also remember the river was just outside half of the conference rooms, so you could see the boats going by.
In May/June I got to go on the aforementioned trip to D.C. for the Education Writers Association conference because We Live Here’s stories on racial disparities in suspensions was nominated for an award, and they asked me to present on it. I got to be on a panel with Nathaniel Lash, who presented on his Pulitzer Prize-winning project Failure Factories.
And in July, I filled in for coworkers at the Missouri Urban Journalism Workshop, a week-long “journalism camp” for high-schoolers at Mizzou. Most of the other instructors had some connection to Mizzou, but not me. Still, I had a good time and it was refreshing to get my head out of the code and get back to basics again. Also I got to meet some friends from KBIA for the first time, so that was nice also.
Drone
Toward the end of 2016, when the FAA was getting ready to enact Part 107 to make commercial drone use easier, I went to a boot camp to learn what I needed to learn to get licensed. I pushed to get one at work, but it never materialized. Until this year.
We got a donation earmarked for the purpose, so I took the Part 107 test (passed with a 95%), and spend the end of the year ordering, then testing the drone as well as putting together all our documentation and procedures about it. I’m presenting on it to the newsroom next week and am looking forward to using it in the coming year.
Other stuff
I got to meet and interview Jer Thorp when he was here installing a project of his called the St. Louis Map Room. It aired, one of a few times I’ve been on the radio. That was fun.
