Pwm problem on pins

dilay.acer
Posts: 1
Joined: Mon Jan 03, 2022 11:00 am

Pwm problem on pins

Postby dilay.acer » Mon Jan 03, 2022 11:06 am

Hello everyone,

I am generating pwm over esp32 for high voltage source. The circuit works, but I get signals from other pins except the pin (22) where I get the pwm signal. Although I pull the pins low, I can get high voltage values when I look at the other pins except the 22nd pin. Is there any suggestion?

ESP_Sprite
Posts: 9746
Joined: Thu Nov 26, 2015 4:08 am

Re: Pwm problem on pins

Postby ESP_Sprite » Tue Jan 04, 2022 12:56 am

Can you show us your schematic and/or source code? What specific pins show you what voltage; do you have oscilloscope traces?

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