ESP8266 Community Forum

- Wed Jan 21, 2015 10:35 pm #7921 I am stumped here. Ive tried a bunch of pin configurations and nothing seems to work.
ESP-01
When I have it wired up with the CH_PD in 3.3v then I get a constant stream of random characters. I see different pin configurations on different sites so Ive tried with gpios and rst in 3.3v and none of them in.

I have been able to flash a new firmware on it. The AT firmware with gpio 0 in ground.

I am using an ftdi232 also to communicate, set to 3.3v.

Please point me in the right direction!

Last edited by tdecurtins on Thu Jan 22, 2015 9:51 am, edited 2 times in total.

- Thu Jan 22, 2015 3:38 am #7929 Try different baud rate, try 9600 or 115200 and see if it fix your issue

- Thu Jan 22, 2015 4:47 am #7933 Which module revision do you use?

- Thu Jan 22, 2015 5:27 am #7936 Random stream of characters could be GPIO2 held low while booting. GPIO0 has to be HIGH (3V3 VCC via resistor) so does CH_EN (and if you want RST via resistors). GPIO2 could be either left floating (it is set to VCC while booting) or you could pull it up via a resistor.

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