ESPHome RTTTL passive buzzer not working

Configuration
1

I purchased a Buzzer module with Low level trigger. The pin is GND, I/O, VCC with MH-FMD label. I am not sure it can do the RTTTL for esphome yaml. Every time I connect the I/O pin to Wemo D1 Mini pin it just buzzed. What I did wrong? If this is just a buzzer what is the ESPHOME codes to the D5 pin will not ground by default?

2

Hi
Not enough information to work with. Show your ESPhome Yaml and someone might be able to offer help. :slightly_smiling_face:

3

I think I figure it out. I try to connect using the D1 Wemo Mini board but do not have PWM pin to work with RTTL Buzzer. IS the correct?

4

wemosD1mini
wemosD1mini1247×758 181 KB

The Wemos D1 mini has several PWM pins. You have not shown your YAML for the buzzer.

output:
  - platform: esp8266_pwm
    inverted: true
    pin:
      number: D7

This is part of my YAML.

5

did you make this work? can you share full yaml file please

6

This works for me.

esphome:
  name: d1-mini-rtttl
  friendly_name: D1 Mini Rtttl

esp8266:
  board: esp01_1m

# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key:  "******"
  services:
    - service: play_rtttl
      variables:
        song_str: string
      then:
        - rtttl.play:
            rtttl: !lambda 'return song_str;'

ota:
  password: "******"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "D1-Mini-Rtttl Fallback Hotspot"
    password: "*****"

captive_portal:

output:
  - platform: esp8266_pwm
    pin: GPIO5
    id: rtttl_out

rtttl:
  output: rtttl_out
  on_finished_playback:
    - logger.log: 'Song ended!'
7 
esphome:
  name: backroom
  platform: ESP32
  board: esp32dev

api:
  services:
    - service: play_rtttl
      variables:
        song_str: string 
      then:
        - rtttl.play:
            rtttl: !lambda 'return song_str;'
        - output.turn_off: rtttl_out   

  ap:
    ssid: "Backroom-Temp-Rtttl-Button"
    password: "444444444"

captive_portal:

output:
  - platform: ledc
    pin: GPIO19
    id: rtttl_out
    inverted: True
    zero_means_zero: True
    

rtttl:
  output: rtttl_out

This is for ESP32.

8

thank you very much.
I manage to make it work but the volume is very low