At work there was a problem with a tool that archives documents. Whenever that tool failed doing its task it would write an error code into a database table.
So some unfortunate user had to check that table for that error code about three times a day, would open that document in Word, save it and update the error code.
I got the order to write a program to automate the whole process. I used c#/.NET for the whole thing. The Task Scheduler would call this program every five minutes and would write its findings into a log.
Because I tested it I was pretty confident it would work smoothly. But what happened now was this: I would check the log regularly if my program picked up the wrong documents and corrected it. Instead of somebody checking the database for errors I would now check the log for the error indications!
So I wrote a second program – again in c#. It would check the log file and if it detected that the tool picked up and fixed a defect document it would then blink the DigiSpark‘s RGB led and turn from green to red. For this I used DigiStump’s DigiRgb.exe basically the same way I used it in my Minecraft mod.
I love it: It saves me a big amount of time of checking a log for something that hardly ever happens. Plus: It looks really cool on my desk 🙂
DigiSpark indicating that all is good. If it detects an error log it blinks red ten times and then stays red until manually reset.
With the future/career day coming up I was wrecking my brains on what to do on the day my son visits me at my workplace. There will be stuff organized for him in the morning but I will have to entertain him for about four hours in the afternoon.
I was thinking I would bring my laptop and let him do some Scratch programming, something he already did and enjoyed. Thinking further I thought I could bring my Arduino Uno and he could blink some LEDs. The most important thing for me is to bring him into programming and not to bore him so I searched further. I thought connecting Arduino and programming to something he is really into… like Minecraft!
I came across this blog post where Rozz decompiles, hacks and recompiles Minecraft to output the health status via a connected Arduino! DONE! This project had all the ingredients I was looking for!
Years ago I bought myself an IR remote for my Nikon D40. That worked ok, but of course I wanted to build my own using a Digispark.
There’s lots of tutorials for IR remotes out there, like LuckyLarry’s. I then later came across the nikonIrControl library which basically allows you to trigger a photo with a single line of code! Best of it is this library will work for every camera supported by ML-L1 and ML-L3 such as D40, D40X, D50, D60, D70, D70s, D80, D90, D7000, D5000, D5100, D3000, Coolpix 8400, 8800, P6000, P7000, P7100, Nikon 1 J1/V1.
And because the intervalometer should be as tiny as possible I was using a Digispark to control everything. Continue reading →
My son made a bird feeder at school and every now and then we could spot a bird eating on our balcony. I thought that would be cool to make photos of the birds stopping by.
Somehow we would have to detect when something comes/flies by. This is done using the PIR motion sensor. But apart from that, Digispark should also trigger after a defined interval, like making a foto every 5 minutes for some nice time lapse movies. I actually added a 1k potentiometer with which we can adjust the delay between two photos between 30 secs and 10 minutes. Setting the poti value in the middle Digispark would trigger a photo every 5 mins.
I bought myself a spycam on ebay:
Features: Image Resolution: 1280 x 960 pixel Color Video Resolution: 640 x 480 pixel FPS: 29 frames per second Image file format: JPEG Video file format: AVI Color Video and Audio Rechargeable Li-ion battery: 280mA 3.7V Dimension: 5.0 x 3.0 x 1.2 cm
They arrived today – along with some proto and RGB shields. I soldered the headers and a RGB shield and uploaded the DigisparkRGB sketch that came with the Arduino 1.0.3 IDE… woohooo. More to follow soon 🙂