MOSI low voltage

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Mike5560
Posts: 1
Joined: Mon May 31, 2021 9:38 pm

MOSI low voltage

Postby Mike5560 » Mon May 31, 2021 9:49 pm

Im new to esp32, and I recently installed the board through the Arduino IDE. I’m running a program that uses SPI. After testing the voltage of the clock (GPIO 18) and MOSI (GPIO 23) pins, MOSI seems really low. I’m getting 0-2.7V on the clock pin, but only 0-200mV on data. Has anyone else experienced this or have any ideas what’s going on?
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ESP_Sprite
Posts: 9749
Joined: Thu Nov 26, 2015 4:08 am

Re: MOSI low voltage

Postby ESP_Sprite » Tue Jun 01, 2021 12:34 am

What test gear are you using? How are you measuring?
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