This week I selected to work with stepper motors because I will use it in my final project. I took Neil’s example and added another motor that uses the 4 unused pins of the tiny 44. The plan was to see those motors work, so I build a small “car” using laser cutting and assigned each motor to spin one wheel of the car.
I created two boards, one was Neil’s example as a reference and the other was mine with the two motors. After fixing some soldering issues I started work on the software (I use C). I duplicated the code for the second motor, and uploaded it to the microcontroller.
The second motor worked perfectly, but the first original one only vibrated. I spent a lot of time trying to find the reason for this. My conclusion is that it has something to do with the C code. I still don’t know what it is… But I will find out.
