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ESP-12F_Relay_X8
ESP-12F_Relay_X8
Device Type: relayElectrical Standard: globalBoard: esp8266
Product description
This is an 8-relay board with an ESP-12F.
Each relay has COM+NO+NC exposed. Product descriptions don't seem to specify maximum load.
The board can be powered either via 7-30VDC or via 5VDC via the screw terminals. Power the board with the screw terminals for flashing.
I bought it from: https://s.click.aliexpress.com/e/_DnEOi2r (affiliation link so i can make others like this, no guarantee it will continue to exist).
GPIO Header
This board has headers for a few GPIO pins on its ESP-12F.
| Pin | Comment |
|---|---|
| 5V | Do not use 5V for programming. Power via screw terminals. |
| TX | Exposed on board 3.3V level! UART0_TX |
| RX | Exposed on board 3.3V level! UART0_RX |
| GPIO0 | 3.3V level! (pulled up, connect to GND for programming) |
| GND | |
| GND | |
| GPIO2 | UART1_TX |
| ADC |
GPIO Pinout
Be aware that relay 1 and 6 will be momentarily toggled on during boot.
| Pin | Comment |
|---|---|
| GPIO0 | Relay 6 (high on boot) |
| GPIO2 | Exposed on board |
| GPIO4 | Relay 7 |
| GPIO5 | Relay 8 |
| GPIO12 | Relay 3 |
| GPIO13 | Relay 4 |
| GPIO14 | Relay 2 |
| GPIO15 | Relay 5 |
| GPIO16 | Relay 1 (high on boot) |
Basic Config
esphome: name: relayboard
esp8266: board: esp12e
# Status LEDlight: - platform: status_led name: "RelayBoard LED" restore_mode: ALWAYS_ON pin: number: GPIO02 inverted: True
# 8 relay outputs, exposed as switches in Home Assistantswitch: - platform: gpio pin: GPIO16 name: Relay1 id: relay1 - platform: gpio pin: GPIO14 name: Relay2 id: relay2 - platform: gpio pin: GPIO12 name: Relay3 id: relay3 - platform: gpio pin: GPIO13 name: Relay4 id: relay4 - platform: gpio pin: GPIO15 name: Relay5 id: relay5 - platform: gpio pin: GPIO00 name: Relay6 id: relay6 - platform: gpio pin: GPIO04 name: Relay7 id: relay7 - platform: gpio pin: GPIO05 name: Relay8 id: relay8