search

sidoh / motor_driver_pcb

Simple PCB for Wemos D1 Mini ESP8266 and an A4988 stepper driver
10 stars 1 forks source link

only getting 2.2v to wemos #3

Open Nexetion opened 1 year ago

Nexetion commented 1 year ago

I'm only getting 2.2v to the wemos d1 mini but the thing is pretty hot and it won't power on for some reason? Can't access the webgui

sidoh commented 1 year ago

The buck converter I'm using here has an adjustable output voltage. If you haven't already, try turning the screw on the top of the variable resistor until output voltage is 3.3v.

Nexetion commented 1 year ago

The buck converter I'm using here has an adjustable output voltage. If you haven't already, try turning the screw on the top of the variable resistor until output voltage is 3.3v.

Yep it's at 3.3v, I'm using the same buck converter you are I'm pretty sure

Nexetion commented 1 year ago

I'm using your PCB

sidoh commented 1 year ago

Where are you seeing 2.2v?

Nexetion commented 1 year ago

5v pin on the wemos

Nexetion commented 1 year ago

Where are you seeing 2.2v?

Got it working, used another d1 guess that other one was bad, but it seems like the stepper motor is pausing or something for like a millisecond during opening and closing any idea what that could be?