CH-PD-pin/power problem
Posted: Fri Aug 19, 2022 6:22 am
I recently wired up the ESP8266 wifi module and DHT22 to my arduino uno to do some humidity / temperature measurement and reading on a webpage with portforwarding. However I couldn't get the ESP working, because as soon as I connect the CH-PD (chip enable) pin over a pull-up to 3.3v the red led on the ESP turns off (power). I measured the supply voltage and it drops to 1v after connecting the CH-PD pin. I use a voltage divider for my supply voltage of 3.3v from 5v.
I'd be very happy, if anyone could help me with this. Thanks
I'd be very happy, if anyone could help me with this. Thanks