28YBJ-48 stepper motor with ul2003
Posted: Tue Apr 25, 2023 3:39 amThere is a ton of examples how to make this stepper motor with ul2003 driver to operate using esp8266 but my motor never moves.
I have tried to use USB charger as a power source as well as an external HDD 12V power source as well as an external charging station as a power source for the motor.
When i connect the signaling cables 1-4 to the nodemcu pins, the 5V voltage on the driver goes to 3.3V
When the motor is disconnected the leds flash in sequence as i would expect them to flash when the motor was moving
Any ideas what could be wrong with the setup and how to make the stepper motor to turn?
https://randomnerdtutorials.com/esp8266 ... 8-uln2003/ this is the setup i am trying but it does not work
I have tried to use USB charger as a power source as well as an external HDD 12V power source as well as an external charging station as a power source for the motor.
When i connect the signaling cables 1-4 to the nodemcu pins, the 5V voltage on the driver goes to 3.3V
When the motor is disconnected the leds flash in sequence as i would expect them to flash when the motor was moving
Any ideas what could be wrong with the setup and how to make the stepper motor to turn?
https://randomnerdtutorials.com/esp8266 ... 8-uln2003/ this is the setup i am trying but it does not work