I need to have a ‘WiFi connected’ LED for my ESP32.
I can figure out how to use the wifi.component in a condition but how do I use to turn on an LED when connected and off when disconnected.
This is probably really simple but I’m stuck.
Any ideas?
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I’m going to guess you’re using ESPHome … check this: https://esphome.io/components/wifi.html?highlight=wifi%20connected#wifi-connected-condition
Thanks. I’ve amended the title accordingly.
I’d already seen the wifi.connected element. I just can’t figure how to use that to drive an output.
It needs a trigger, like on_press, for example.
I need something like:
on-wifi.connected
then:
switch.turn_on: wifi_led
Simple as that, but how?
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This is how I do it:
interval:
- interval: 1s
then:
if:
condition:
wifi.connected:
then:
- switch.turn_on: blue_led
else:
- switch.turn_off: blue_led
I haven’t found a better way other than polling the sensor.
3 Likes
Thank you!
Hate to bring this up again, but is it a switch or a light? I am trying this but am getting errors.
ID 'blue_led' of type esp8266_pwm::ESP8266PWM doesn't inherit from switch_::Switch.
Please double check your ID is pointing to the correct value.
id: blue_led [source /config/esphome/switch_back_4ch.yaml:95]`
This is what I have in the yaml…
output:
# Register the blue LED as a dimmable output ....
- platform: esp8266_pwm
id: blue_led
pin: GPIO13
inverted: True
light:
# ... and then make a light out of it.
- platform: monochromatic
name: "Sonoff 4CH Blue LED"
output: blue_led
interval:
- interval: 1s
then:
if:
condition:
wifi.connected:
then:
- switch.turn_on: blue_led
else:
- switch.turn_on: blue_led
I am also getting errors with light.turn_on as well. What should I be using? Thanks in advance.
blue_led is an output, not a switch. Therefore you cant use the switch.turn_on/off actions. Use the output.turn_on/off actions instead.
interval:
- interval: 1s
then:
if:
condition:
wifi.connected:
then:
- output.turn_on: blue_led
else:
- output.turn_off: blue_led
2 Likes
Tom, thanks for this! I “took the liberty” to use your solution in my setup, too. However, i modified it a bit, so i get a blinking led. I guess that as a side effect i’ll get a visual indication if by any chance module freezes (led will stop blinking).
interval:
- interval: 1s
then:
if:
condition:
wifi.connected:
then:
- switch.turn_on: test_wifi_connected
- delay: 500ms
- switch.turn_off: test_wifi_connected
else:
- switch.turn_off: test_wifi_connected
I went a bit further: i programmed my LED so that i know if it’s only connected to wifi or if it’s also connected to HA. “Wifi only” shows by steady 0,5s flashing, while api connected i get pulsed flashing. Ok, i admit, usability is questionable at this point… maybe it will prove usefull.
interval:
- interval: 1s
then:
if:
condition:
wifi.connected:
then:
- if:
condition:
api.connected:
then:
- switch.turn_on: test_wifi_connected
- delay: 200ms
- switch.turn_off: test_wifi_connected
- delay: 200ms
else:
- switch.turn_on: test_wifi_connected
- delay: 500ms
- switch.turn_off: test_wifi_connected
- delay: 500ms
else:
- switch.turn_off: test_wifi_connected
6 Likes
I know this is old topic, but maybe it will help someone looking for a solution.
I was also looking for a way to control an LED on wifi connect/disconnect state and you can directly configure this in the wifi component like so:
wifi:
#your wifi settins
on_connect:
- switch.turn_on: switch1
on_disconnect:
- switch.turn_off: switch1
3 Likes
True, but in this case you don’t know if esp module by any chance locks up, or in any way “go south”. Although rare, it may happen, so it’s better to make led flash in regular intervals.
What about this?
output:
- platform: gpio
pin: 12
id: led_wifi
light:
- platform: binary
id: wifi_led
output: led_wifi
effects:
- strobe:
name: "blink_slow"
colors:
- state: true
duration: 500ms
- state: false
duration: 500ms
- strobe:
name: "blink_fast"
colors:
- state: true
duration: 200ms
- state: false
duration: 200ms
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
enable_on_boot: True
id: wlan
on_connect:
then:
- light.turn_on:
id: wifi_led
effect: blink_slow
on_disconnect:
then:
light.turn_off: wifi_led
api:
#YOUR CODE
on_client_connected:
- if:
condition:
lambda: 'return (0 == client_info.find("Home Assistant "));'
then:
- light.turn_on:
id: wifi_led
effect: blink_fast
on_client_disconnected:
- if:
condition:
lambda: 'return (0 == client_info.find("Home Assistant "));'
then:
- light.turn_off: wifi_led
I think this solution is better because when I was using the condition api.connected, it was triggering also if any other api connected, not just home assistant.
Only downside I have encountered with this new approach is that sometimes it takes about 1-2min till the esp realizes that it connected/disconnected to home assistant.
Hm…
first “error” i see in your version is this situation:
- wifi connects → blink slow = ok
- api connects → blink fast = ok
- (later) if api disconnects → led off = NOT ok → you can’t tell if esp is still connected to wifi or not, since this command turns off led, while wifi component doesnt turn on slow blink again. So, here more sophisticated “if” would be required, like if wifi is connected → slow blink, otherwise → led off.
However, i can’t really see why there would be 1-2 minutes delay here…?
My version with interval is now a bit different - it uses flash lentgh:
(substitution “connected_pin” must be defined)
interval:
- interval: 2s
then:
if:
condition:
wifi.connected:
then:
- if:
condition:
api.connected:
then:
- light.turn_on:
id: ${device_name}_led
flash_length: 100ms
else:
- light.turn_on:
id: ${device_name}_led
flash_length: 1000ms
else:
- light.turn_on:
id: ${device_name}_led
flash_length: 1900ms
light: # ----------------------------------------------------------------------- LIGHT
- platform: binary
id: ${device_name}_led
internal: true
output: status_ledica_out
output:
- id: status_ledica_out
platform: gpio
pin: ${connected_pin}
But, i think that even in my config there is an option to include “client_info” or “client_ip” into condition. It’s just a matter of knowledge (or trial/error)
how i was guided to do it in a simple way that would pulse when the wifi wasnt connected and solid when it is connected:
binary_sensor:
- platform: template
name: Wifi Connection
id: wifi_connected
lambda: return id(wifi_id).is_connected();
on_press:
then:
- light.turn_on:
id: led
effect: none
on_release:
then:
- light.turn_on:
id: led
effect: Pulse
output:
- platform: esp8266_pwm
id: blue_led
pin: GPIO13
inverted: True
light:
- platform: monochromatic
name: Blue LED
id: led
output: blue_led
internal: true
effects:
- pulse:
1 Like