ESP Home SET Pin High

ESPHome
,
1

How to simply set pin GPIO02 to HIGH ? I am lost

substitutions:
  name: esphome-web-5822df
  friendly_name: ESP-HUMIDITY

esphome:
  name: ${name}
  friendly_name: ${friendly_name}
  min_version: 2024.6.0
  name_add_mac_suffix: false
  project:
    name: esphome.web
    version: dev

esp8266:
  board: esp01_1m

# Enable logging
logger:

# Enable Home Assistant API
api:

# Allow Over-The-Air updates
ota:
- platform: esphome

# Allow provisioning Wi-Fi via serial
improv_serial:

wifi:
  # Set up a wifi access point
  ap: {}

# In combination with the `ap` this allows the user
# to provision wifi credentials to the device via WiFi AP.
captive_portal:

dashboard_import:
  package_import_url: github://esphome/example-configs/esphome-web/esp8266.yaml@main
  import_full_config: true

sensor:
  - platform: dht
    pin: GPIO0 #Pin D3
    temperature:
      name: "Living Room Temperature"
    humidity:
      name: "Living Room Humidity"
    update_interval: 2s

switch:
  - platform: gpio
    name: "GPIO13 Switch"
    pin: GPIO02
    id: GPIO02_switch
    internal: true

web_server:
 port: 80
2

When do you want to turn the switch on (GPIO02 → High)?

You can control it from your dashboard in home assistant. Or in ESPHome you can use the switch.turn_on action. See: Actions, Triggers, Conditions — ESPHome

3

Is there any reason that you set it as internal? This way it’s not accessible from HA. Delete that line and it will appear.

4

Full time without condition

5

Why use a gpio then?
Why not use the 3.3 v pin?

6

That’s an excellent question I did not partially responded:
Because I am testing a lot of sensors that have Fix pin that are all in front of my ESP8266 PIN.
So, instead of prototyping a lot of hardware, I just want to set the right “voltage” on PINs. (And yes, the current consumed by the sensor is lower than the electrical capability of the output pin.)

7

Add the following to your switch

restore_mode: ALWAYS_ON
1 Like
8 
  on_boot:
    priority: 1000
    then:
      - lambda: |-
          pinMode(02, OUTPUT);
          digitalWrite(02, HIGH);

Do it in lambda. This should set it high very early on the boot.

1 Like
9

Thank you !