failing to connect ULTRASONIC sensor to esp32 wroom-32

galfedida1212
Posts: 1
Joined: Sat Dec 25, 2021 11:11 am

failing to connect ULTRASONIC sensor to esp32 wroom-32

Postby galfedida1212 » Sat Dec 25, 2021 11:15 am

i connected the ultrasonic sensor to the 3.3 vcc and ground and the trig and echo pins to GPIO22,1 when i connect the sensor i get MD5 error:"A fatal error occurred: MD5 of file does not match data in flash!"
any help will be greatly appriciated

ESP_Sprite
Posts: 9730
Joined: Thu Nov 26, 2015 4:08 am

Re: failing to connect ULTRASONIC sensor to esp32 wroom-32

Postby ESP_Sprite » Sun Dec 26, 2021 2:48 am

To which GPIOs did you say you have that sensor connected? 22 makes sense, but 1 is (iirc) txd, so you likely would get interference with your serial port on that pin. Are you sure it's GPIO1?

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