ESP8266 Community Forum

Posted: **Wed Jun 24, 2015 10:59 am**

Hey! I just recently got my first ESP-01 and am trying to wire it up.

Every time I connect the CH_PD pin to 3.3V (either through a 10k pull up resistor or directly) both the red and blue LEDs light up in sequence and the power adapter seems to struggle (the LED indicator on the adapter goes off).

I have attached a video of me trying to connect the CH_PD to 3.3V (first via the pull up and then directly).

Any idea what's wrong? Have I fried it? :roll:

Posted: **Wed Jun 24, 2015 4:04 pm**

What kind of power supply are you using? The esp8226 can draw up to 215ma with wifi on, for example using the serial adapter 3.3v is probably not an option.

Posted: **Wed Jun 24, 2015 10:10 pm**

I am using a separate 3.3V bread board power supply - MB 102, which I bought off eBay.

Posted: **Wed Jun 24, 2015 10:51 pm**

By any chance is your ESP starting to heat up? Does it get hot after a few minutes of operation? What is being fed as input into your MB-102? Do you have a voltmeter to check it? Can you also check the polarity of the plug being plugged into it?

ESP8266 Community Forum

Strange behaviour of CH_PD (ESP-01)

Strange behaviour of CH_PD (ESP-01)

Re: Strange behaviour of CH_PD (ESP-01)

Re: Strange behaviour of CH_PD (ESP-01)

Re: Strange behaviour of CH_PD (ESP-01)