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Device Type:relay
Electrical Standard:global
Board:esp8266

Sinilink XY-WFMS

This device can be found on Aliexpress for about 5 USD.

Flashing​

alt text

Can be tricky to solder the ground connection to the PCB due to heavy ground plane, I used P50 pogo pins in a printed adapter for 6x1.25mm but the Vin- screw terminal could also be used for conveient ground connection.

GPIO Pinout​

PinFunction
GPIO02Blue LED
GPIO04Relay and Red LED
GPIO12Toggle Button
GPIO13Green LED

Basic Config​

The following configuration is adapted from this ESPHome devices repository with only minor changes to fit the new device.

There is a 3D printable case available from https://www.thingiverse.com/thing:4638431 which I remixed from https://www.thingiverse.com/thing:4146127

substitutions:
  devicename: xy_wfms
  upper_devicename: "Sinilink XY-WFMS ESP8266 Wifi Mosefet"

esphome:
  name: $devicename

esp8266:
  board: esp01_1m
captive_portal:

# Enable logging
logger:

# Enable Home Assistant API (if available i.e. reboot_timeout=0s)
api:
  reboot_timeout: 0s

ota:
wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
  #use_address: 10.0.0.230

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: !secret ap_ssid
    password: !secret ap_password
    ap_timeout: 3min

web_server:
  port: 80

status_led:
  pin:
    number: GPIO2 # blue led
    inverted: true #off when ok

switch:
  # Relay (has red led hardwired; relay on = led on)
  - platform: gpio
    id: relay
    pin: GPIO4
    restore_mode: RESTORE_DEFAULT_OFF

  # green led
  - platform: gpio
    pin: GPIO13
    id: green_led
    inverted: false
    restore_mode: RESTORE_DEFAULT_ON

  #  # blue led (if _not_ used for status led)
  #  - platform: gpio
  #    pin: GPIO2
  #    id: blue_led
  #    inverted: true
  #    restore_mode: RESTORE_DEFAULT_OFF

  # Switch template to link relay and green led states
  # green led is on when relay is off
  - platform: template
    id: "${devicename}_relay"
    name: $upper_devicename
    lambda: |-
      if (id(relay).state) {
        return true;
      } else {
        return false;
      }
    turn_on_action:
      - switch.turn_off:
          id: green_led
      - switch.turn_on: #also turns red led on
          id: relay
    turn_off_action:
      - switch.turn_on:
          id: green_led
      - switch.turn_off: #also turns red led off
          id: relay

# Button
binary_sensor:
  - platform: gpio
    id: button
    pin:
      number: GPIO12
      mode: INPUT_PULLUP
      inverted: True
    on_press:
      - switch.toggle: "${devicename}_relay"