I made some changes to Max’s Controller board. From the AVR, the External Interrupt pins are now connected to Channel A of both Wheels. Later, once the Quadrature is fixed, the Port B0, B1 will be connected to Channel B of the Encoder signals for both wheels.
As the nature of quadrature signals goes, the combination of both Channels will indicate the direction of rotation of the wheels. But that’s later…for now…I’ll cheat a bit, or just a workaround.
I added some new pics of various components and views of Max as he is currently, in the UltraMax Gallery.
Now I’ll be looking at Channel A on the scope, and coding the ISRs to count. I will give another update soon.