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Device Type:relay
Electrical Standard:global
Board:esp8266

ESP-01 4 Channel Relay LC Technology

Product Image

Printable enclosure: https://www.printables.com/model/836453-lc-tech-4-relay-esp-01-enclosure

Basic Configuration with standard switches​

esphome:
  name: xxx

esp8266:
  board: esp01_1m


# Enable Home Assistant API
api:

ota:
  - platform: esphome
    password: ""

wifi:
  ssid: ""
  password: ""
  manual_ip:
    static_ip: xxx.xxx.xxx.xxx
    gateway: xxx.xxx.xxx.xxx
    subnet: xxx.xxx.xxx.xxx

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Fallback Hotspot"
    password: ""

# Enable logging
logger:
  baud_rate: 0 #need this to free up UART pins

uart:
  baud_rate: 115200 # speed to STC15L101EW
  tx_pin: GPIO1
  rx_pin: GPIO3
  
switch:
  - platform: template
    name: "relay1"
    id: relay1
    turn_on_action:
      - uart.write: [0xA0, 0x01, 0x01, 0xA2]
    turn_off_action:
      - uart.write: [0xA0, 0x01, 0x00, 0xA1]
    optimistic: true

  - platform: template
    name: "relay2"
    id: relay2
    turn_on_action:
      - uart.write: [0xA0, 0x02, 0x01, 0xA3]
    turn_off_action:
      - uart.write: [0xA0, 0x02, 0x00, 0xA2]
    optimistic: true

  - platform: template
    name: "relay3"
    id: relay3
    turn_on_action:
      - uart.write: [0xA0, 0x03, 0x01, 0xA4]
    turn_off_action:
      - uart.write: [0xA0, 0x03, 0x00, 0xA3]
    optimistic: true

  - platform: template
    name: "relay4"
    id: relay4
    turn_on_action:
      - uart.write: [0xA0, 0x04, 0x01, 0xA5]
    turn_off_action:
      - uart.write: [0xA0, 0x04, 0x00, 0xA4]
    optimistic: true

Configuration with momentary switches (push buttons with 1 sek press time)​

esphome:
  name: xxx

esp8266:
  board: esp01_1m


# Enable Home Assistant API
api:

ota:
  - platform: esphome
    password: ""

wifi:
  ssid: ""
  password: ""
  manual_ip:
    static_ip: xxx.xxx.xxx.xxx
    gateway: xxx.xxx.xxx.xxx
    subnet: xxx.xxx.xxx.xxx

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Fallback Hotspot"
    password: ""

# Enable logging
logger:
  baud_rate: 0 #need this to free up UART pins

uart:
  baud_rate: 115200 # speed to STC15L101EW
  tx_pin: GPIO1
  rx_pin: GPIO3
  
switch:
  - platform: template
    name: "relay1"
    id: relay1
    turn_on_action:
      - uart.write: [0xA0, 0x01, 0x01, 0xA2]
    turn_off_action:
      - uart.write: [0xA0, 0x01, 0x00, 0xA1]
    optimistic: true
    on_turn_on:
    - delay: 1000ms
    - switch.turn_off: relay1

  - platform: template
    name: "relay2"
    id: relay2
    turn_on_action:
      - uart.write: [0xA0, 0x02, 0x01, 0xA3]
    turn_off_action:
      - uart.write: [0xA0, 0x02, 0x00, 0xA2]
    optimistic: true
    on_turn_on:
    - delay: 1000ms
    - switch.turn_off: relay2

  - platform: template
    name: "relay3"
    id: relay3
    turn_on_action:
      - uart.write: [0xA0, 0x03, 0x01, 0xA4]
    turn_off_action:
      - uart.write: [0xA0, 0x03, 0x00, 0xA3]
    optimistic: true
    on_turn_on:
    - delay: 1000ms
    - switch.turn_off: relay3

  - platform: template
    name: "relay4"
    id: relay4
    turn_on_action:
      - uart.write: [0xA0, 0x04, 0x01, 0xA5]
    turn_off_action:
      - uart.write: [0xA0, 0x04, 0x00, 0xA4]
    optimistic: true
    on_turn_on:
    - delay: 1000ms
    - switch.turn_off: relay4