QIACHIP Wifi Wireless 433Mhz RF with esp8266-s3
Description of problem:
I’m having hard time flashing this sonoff rf clone which has a little but important (I think) difference to the ‘original’. The button on the device is connected directly to the 433 rf module to pair remotes (the sonoff rf instead connects it to the esp if I’m right to toggle the realy). Therefor I have the hope to flash this device with esphome and still being able to control it in parallel with the rf module which is integrated in the device. After flashing esphome the rf function should work as normal including pairing new remotes (with the button). The device state should always be visible in esphome even if toggled via the rf function.
Problem for now is that I’m not able flash this esp8266-s3 thing despite having even the data sheet (https://fccid.io/2AKBPESP8266-S3/User-Manual/User-Manual-3594791).
I tried with the usual combination (with my usb ttl adapter which flashed already a dozens of different esps) hooking up V, GND, RX, TX and pull GPIO 0 to ground to get in flash mode. Problem is that serial connection to the device always fails. Weird is also that I don’t get the led (I think I see one right under the metal cap but not 100% as it is so tiny) on the esp8266-s3 to light up - if one exists! It makes me wonder a little bit… usually this is always a great indicator that the board has power and from the type of blinking it’s normally even possible to see if it booted successfully in the flash mode. I’m confused and not amused.
If any one could give some advise I would be glad