Relay Trigger when power loss

ESPHome
,
1

Hi Guys,
I am very new to this - but have a bit of DIY in me.
I setup an automation to be able to open and close my gates using homeassistant and everything works fine. I have an issue where, in the event of a power loss, it triggers the relay and my gates open. I have backup power and am sorting out the faulty power supply. The issue I have is that I cannot leave this in the current state where if there is a power outage, the gates can open erratically. I know I can add sensors and will get there eventually but I am trying to find the root cause. I have read about not using GPIO 0, 2 and 15 and I have refrained from that. my ESP code is below:

switch:

  • platform: gpio
    pin: GPIO5

    D1 - GPIO5

    white wire = driveway gate

    id: relay
    name: “Driveway Gate”
    icon: “mdi:gate”
    on_turn_on:
    • delay: 500ms
    • switch.turn_off: relay

- Garage Section

  • platform: gpio
    pin: GPIO4

    D2 - GPIO4

    brown wire = blue gate

    id: relay1
    name: “Blue Gate”
    icon: “mdi:gate”
    on_turn_on:
    • delay: 500ms
    • switch.turn_off: relay1

The very important note is that it failed when it looses power, not upon boot.
this is my relay: 1. BDD RELAY BOARD 2CH 5V - Communica [Part No: BDD RELAY BOARD 2CH 5V]

this is how its connected:

garage relay
garage relay388×839 147 KB

Any help would be appreciated.

2

Hi - maybe fix up the posting of the yaml using some code tags </>. So:

it looks like this.

And also post some logs from the ESP device when the power failure occurs.

3

Hi,
From the picture it seems you are using the Normally Closed contact on the relay.
Is there a reason for that?
I would guess that you are somehow simulating a button press with the relay, is it correct?

1 Like
4

Also, you didn’t mention which esp you have. And your relay is wired unproperly for 3.3V trigger.

5

Try to move your blue gate wires to left terminals on relays output.