I see the microMotors have a rated voltage of 6v
The quad motor controller can take an external voltage supply - or can run from 5v
Does anyone know how the microMotors will perform at 5v? I can test as soon as they arrive - but it would be useful to know if anyone has experience
Not sure if it as simple as:
max RPM = rated RPM*(5/6) - torque will also reduce by the same ratio as the speed…?
Hi @dbrb2,
Motor 2040 can indeed take an external voltage supply, but you will need to cut a trace on the rear of the board to prevent that power from feeding back into your PC and causing damage. See the section on the product page titled Powering Motor 2040.
I do not have data on that sorry.
When you get your board and encoders working you could test that RPM theory with this example: pimoroni-pico/micropython/examples/motor2040/motor_profiler.py at main · pimoroni/pimoroni-pico · GitHub
Thanks
It looks like these motors may have a fairly wide operating voltage range
Tjey are nominally 6v but “the internet” suggests they may operate fine between about 3 and 9