I am having problems with testing my A4988 drivers.
I have wired the drivers to a mega2560 as per https://www.pololu.com/picture/0J3360.600.png?9377c4c10a769ae9b5519dd95a326a5b
I added several LEDs to verify state of several of the pins and ran the following sketch.
stepper-drive-real-test_v2.ino (2.7 KB)
- All inputs test OK.
- the stepper motor produces light when LED
connected across coils.
- It is locked when the sketch is running.
How do I test motor output at the A4988 with multimeter or LED?