Stepper Motor Experiments with 28BYJ-48 and ULN2003 driver from the Raspberrry PI Pico.
Three example used in video on my youtube channel
Simple C example of driving the 28-BYJ-48.
ULN2003 driver connected on GP2 to 5. LED on GP0
Driving the 28-BYJ-48 from a FreeRTOS task. The interfacing to the task through a queue. All encapsulated in an agent C++ class.
ULN2003 driver connected on GP2 to 5. LED on GP0
Demo build of a test framework for the stepper motor. A 3D printed mount with optical slot detector and LED ring. Enable monitoring of accuracy by watching the disk rotate from RED LED to Green LED through yellow LEDs.
For more Pico Examples see drjonea.co.uk/IoT