Use Haskell to program Arduino microcontrollers #Haskell #Arduino #Programming
Joey Hess posts about arduino-copilot – use Haskell to program an Arduino. It’s a FRP style system, and uses the Copilot DSL to generate embedded C code.
To make your arduino blink its LED, you only need 4 lines of Haskell:
main = arduino $ do
led =: blinking
delay =: constant 100
Running that Haskell program generates an Arduino sketch in an .ino file, which can be loaded into the Arduino IDE and uploaded to the Arduino the same as any other sketch. It’s also easy to use things like Arduino-Makefile to build and upload sketches generated by arduino-copilot.
I’m not the first person to use Copilot to program an Arduino. Anthony Cowley showed how to do it in Abstractions for the Functional Roboticist back in 2013. But he had to write a skeleton of C code around the C generated by Copilot. Among other features, arduino-copilot automates generating that C skeleton. So you don’t need to remember to enable GPIO pin 13 for output in the setup function; arduino-copilot sees you’re using the LED and does that for you.
Also: simulating an Arduino
One of Copilot’s features is it can interpret code, without needing to run it on the target platform. So the Arduino’s behavior can be simulated, without ever generating C code, right at the console!
Eink, E-paper, Think Ink – Collin shares six segments pondering the unusual low-power display technology that somehow still seems a bit sci-fi – http://adafruit.com/thinkink
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