It has ESP8266, and they actually have silk printed required pins. But flashing TASMOTA won’t help you to get reading. Unfortunately, they have another MCU by design there:
So, I have gave up trying to spot how ESP communicates with SiLabs MCU, and now working on “hacking” original Tuya firmware to remove chineese cloud and replace with local cloud (there bunch of project on GutHub that emulates Tuya servers).
OFFTOPIC:
Had much more luck on Neo CoolCam Wi-Fi switches – they are instant, comparing to Z-Wave models and can be TASMOTised
any luck so far? I wanted to use it as a mailbox notifier but the cloud connection to china is rather unstable and tuya refuses to let me log in to connect to IFTTT…
gearbest sells them under their own label “go.comma” and on the board silk screened you’ll find Door Sensor _WIFI_V4 20180203
i have installed tasmo on it.
but i can connect only for a few seconds then the thing turns off.
only after taking away power and reconnect power i can connect again.
it seams that there is more to do.
Hi All, just checking in to suggest a firmware, brandond has written a custom component for ESPHome to support the Neocoolcam Wifi PIR sensors, I have tested and confirmed this working on my own sensors. The PIR uses the same coprocessor as the Window/Door sensors which in a nutshell wakes up the ESP8266, does some handshakes with the ESP via serial, waits till the ESP has connected to MQTT then puts the ESP back to sleep by pulling the reset line to GND.
There is no one. The while PIR/Door sensor/LED stuff are handled by additional coprocessor. Check [bircoe]'s reply.
I’ve tried altered ESPHome firmware from brandond and succesfully received values from DoorSensor by MQTT in HA.
But have some problems with missing states (connection to mqtt too long possibly) and totally unresponsiveness of sensor after some time.
ESPHome is something new for me, so I just figuring out how to configure it
Using USB TTL cable soldering wires to pads on sensors. Pads are named, so no problems with identification.
Also you will need to shortcut GPIO0 with GND to bring ESP to flash mode (located opposite side). Also connections are named.
For chinese TTL cable I had to use 5V mode, cause 3V mode was pretty unstable
hm, if I’m not mistaken, RX0, TX0, 3.3V and GND are in one place, very close to each other, while GPIO0 is on the other side and on the upper corner of the board, right?
hi . i have flash a door sensor with esphome but i am stuck to config mqtt binary sensor.
how do you do to extrat the mqtt message from esphome and insert in HA?
Message 107 reçu sur boite_letre/debug à 15:09 :
e[0;32m[I][sb1:364]: Door event: 0e[0m
QoS: 0 - Retain: false