With Fo

What was the challenge this week ?

We had to do a car race and send strings such as 0,1,2,3,4 to the car which is going to take these as commands to move forward, backward, turn and light up.

But it is not as simple as that…

We have to listen to an air table that is gonna set the go that will go through to the RP240 which is going to set some code to start the controls then send it to an ESP which uses MQTT to talk with cloud which talks back to these Lego cars.

What does the code look like???

So there are couple of parts we need for this to work

Final Code that was on RP2040

crazy-car-race/FinalRP2040code at bbaa5582491d5e495020faa649e9c51d21ad5aa0 · marcjm/crazy-car-race

Class that was running serial communication between RP2040 and ESP on the RP2040

crazy-car-race/sc.py at bbaa5582491d5e495020faa649e9c51d21ad5aa0 · marcjm/crazy-car-race

Let’s build it:

What worked?

• Really enjoyed making the wooden box and using the potentiometer as an interaction point. The hardware looked and felt really good, making me want to use the box, even just as a fidgeting device.

What did not work?

• Managing the files was really tricky, there was a point where a serial class I was attempting to save onto the RP2040 kept on getting rewritten by the Arduino lab software which modified the indents, breaking the code.