ESP8266 Community Forum

- Tue Feb 10, 2015 12:13 pm #9403 Hi folks, I just fot my first ESP8266 module a short while ago, and I've been eager to use it in a project, but I can't seem to get it to accept commands on the RX pin. If I connect it to my serial monitor and reset it via the RST pin, I get the following:

Code: Select all0 ]pJ≈a" ¸∆}Àt|í‰
3‹CCÿ`
[Vendor:www.ai-thinker.com Version:0.9.2.4]

ready

But, no matter what command I send to it, AT, AT+RST, etc, it never responds. I've tested with both a FTDI chip and an Arduino with a voltage divider, but I get the same result either way. I've re-wired it three times, but no changes.

I can see and connect to the ESP_958499 WiFi AP, the red power light stays on, the blue light blinks when it resets, and everything else seems to be working.

Does anyone have any ideas what's going on here? Can I work around this, or is it just a defective unit?

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- Tue Feb 10, 2015 12:51 pm #9407 If you're actually seeing characters you're writing, but pressing return does nothing, just replace firmware to something less crappy, like nodemcu. I had the same problem with default firmware (and changing newline type in serial config didn't help).

- Tue Feb 10, 2015 1:42 pm #9408 you have iot firmware in esp-07. you must to flash at firmware for at commands. or you can use nodemcu.

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- Tue Feb 10, 2015 2:13 pm #9410 Have you tried sending a carriage return & line feed combo to terminate the command? I don't use that firmware any more but I remember an issue like that when I first got mine. Some versions of the AT firmware require lines to end with both characters, some with just a return. I don't know the versions well enough to know which yours is.