ESP8266 Community Forum

- Sun Aug 16, 2015 7:19 pm #26225 Sorry in advance if this question is daft... I have googled for hours and tried multiple different connections / tips to get this little bugger to work - all to no avail it seems.

I can't send AT commands to the ESP8266.
- Using arduino serial command with correct baud of 115200, both NL and CR selected
- When i power up the ESP8266, i get the generic startup message 'Ai-Thinker Technology Co. Ltd' then 'ready'
- When i type any commands into the window and press enter, nothing happens... it does NOT display the written command in the window at all...

I have deduced that my wiring is correct and haven't got the TX/RX lines mixed up because i am seeing the ready message on power up.

I am powering with a separate 3.3v power from raspberry pi i had lying around as my serial to USB is 5v (using a common ground).

3.3v to VCC and CH_PD
gnd to gnd (common)
serial to USB Tx to esp8266 Rx via 10k/20k voltage divider
serial to USB Rx to esp8266 Tx directly

Any help would be appreciated... i can take a picture of the breadboard wiring if that would help...

Thanks in advance,

Nathan

- Wed Dec 02, 2015 1:43 am #35481 anybody??

- Wed Dec 02, 2015 5:06 am #35488 Are you sending the proper termination characters after each command?

- Wed Dec 02, 2015 7:21 am #35500 follow this

http://electronut.in/IoT-temp-sensor/

-Venkatesh