01-ESP8266 and Tuya WR3E control switch

ESP8266_12E-module usage tips:

Relay: high level control, using IO12 

Distribution network indicator light: low level control, using IO05 and IO04

Reset button: REST and KEY are short-circuited. It is recommended to use a jumper to connect them. It is not recommended to solder them.

Burning mode: short-circuit GND and IO0. It is recommended to use a jumper to connect. After the firmware is burned, please open the connection between GND and IO0.

Note: When burning firmware, you need to boot from ice, that is, you need to power on the ESP8266_12E module, otherwise the firmware cannot be programmed.

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Tuya WR3E smart module usage tips:

Switch button: low level control, using IO22

Relay: high level control, using IO15

Distribution network indicator light: low level control, using IO5

Indicator light: low level control, using IO12 

First time network configuration: press and hold the switch button for more than 20 seconds until the light flashes

Power on status: power off

Note: When using the Tuya WR3E module, please disconnect the R6 and R7 1K resistors. The resistors on the left and right sides of the module are the R6 R7 1K resistors, and then short-circuit KEY and IO13 so that the switch button can be used.

Simulation diagram