I have an ESP-12 on the Adafruit Huzzah breakout board.
It came with Node MCU and I need it to run the default/original firmware that interprets AT commands.
My plan is to make it the WiFi module for an Arduino.
I found a tool and firmware to upload v0.9.5.2 AT Firmware.bin and now after it boots it says MEM CHECK FAIL!!! and then Ai_Thinker Technology Co. Ltd. and ready.
It won't however accept any AT commands, if I send a plain AT it locks up puTTY.
Since there is so much weird stuff that I can find on this topic I decided to post.
I believe I have two issues:
- find a source of a reliable and up to date firmware for ESP8266 - ESP12 that interprets AT commands
- find a solid flasher for it, after having tried ESPflasher from NodeMCU as well as ESP8266 Download Tool 2.3 and 2.4 (seemingly from Espressif) and also XTCOM Util (which I find easier to use)
I may have another issue, as I may have messed up my ESP, since I now get the MEM CHECK ERROR, but that may be the topic of another post.
Anyone that could point me in the right direction?
Thank you very much.