ESPhome on Action LSC Motion Sensor - Tuya TYWE3S (ESP8266-based)

lsc_pir.yaml

# This device has two chips:
# - an ESP8266-based WiFi Module that talks to Tuya's cloud service (when running the stock firmware) and the on-board MCU.
# - an unmarked Tuya microcontroller (a.k.a MCU) that acts as a power management chip and wakes up the WiFi Module
#   when motion is detected by the PIR sensor. The WiFi Module has to talk to the MCU upon power-on to prevent immediate power-off.

substitutions:
  device_name: CHANGEME

esphome:
  name: '${device_name}'
  platform: ESP8266
  board: esp_wroom_02 # TYWE3S modules have 2MB of on-board flash
  on_boot:
    then:
     - uart.write: [0x55, 0xAA, 0x00, 0x02, 0x00, 0x01, 0x04, 0x06] # report "wifi ok, connected to router and to cloud"
     - wait_until: mqtt.connected
     - binary_sensor.template.publish:
         id: pir_workspace_motion_detected
         state: ON
     - delay: 1s
     - binary_sensor.template.publish:
         id: pir_workspace_motion_detected
         state: OFF
     - uart.write: [0x55, 0xAA, 0x00, 0x02, 0x00, 0x01, 0x05, 0x07] # power off wifi module

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_pass
  fast_connect: True

# Disable serial logging
logger:
  baud_rate: 0

# Enable OTA updates
ota:
  password: !secret mgmt_pass

time:
  - platform: sntp
    id: sntp_time

uart:
  baud_rate: 9600
  tx_pin: GPIO1
  rx_pin: GPIO3

mqtt:
  broker: !secret mqtt_broker
  username: !secret mqtt_username
  password: !secret mqtt_pass
  discovery: True

# TODO detect motion from MCU messages
binary_sensor:
  - platform: template
    id: pir_workspace_motion_detected
    name: 'PIR Workspace - Motion Detected'
    device_class: motion

@Palakis
This is amazing !
This is my chance to get rid of the default tuya integration issues !
Can you give more information on how you flashed the chip ?
Any change there was also an analog pin assigned for measuring the battery level ?
I believe it will be probably be pin 2 since this is a 10-bit-precision SAR ADC