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Shelly Plus PM Mini

Shelly Plus PM Mini

Device Type: sensor
Electrical Standard: euukus
Board: esp32
Difficulty: Soldering required, 4/5

This is effectively a Shelly Plus 1PM Mini, but without the relay and the switch.

GPIO Pinout

PinFunction
GPI03NTC
GPI06BL0942 TX
GPI07BL0942 RX

Serial Pinout

The UART Pinout is the same as the Shelly Plus 1PM Mini.

Shelly Plus 1PM Mini

Basic Configuration

substitutions:
  device_name: "Shelly Plus PM Mini"


esphome:
  name: spare-mini
  friendly_name: "Shelly Plus PM Mini"


esp32:
  board: esp32-c3-devkitm-1
  framework:
    type: esp-idf
    version: recommended
    sdkconfig_options:
      COMPILER_OPTIMIZATION_SIZE: y
    advanced:
      ignore_efuse_mac_crc: false


wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
  ap:
    ssid: "$(device_name) Fallback Hotspot"
    password: !secret wifi_password


logger:


api:
  encryption:
    key: !secret api_encryption_key


ota:
  password: !secret ota_password


time:
  - platform: homeassistant


captive_portal:


sensor:
  - platform: ntc
    sensor: temp_resistance_reading
    name: "Temperature"
    unit_of_measurement: "°C"
    accuracy_decimals: 1
    icon: "mdi:thermometer"
    calibration:
      b_constant: 3350
      reference_resistance: 10kOhm
      reference_temperature: 298.15K
  - platform: resistance
    id: temp_resistance_reading
    sensor: temp_analog_reading
    configuration: DOWNSTREAM
    resistor: 10kOhm
  - platform: adc
    id: temp_analog_reading
    pin: GPIO3
    attenuation: 11db


  - platform: bl0942
    uart_id: uart_bus
    voltage:
      name: 'Voltage'
    current:
      name: 'Current'
    power:
      name: 'Power'
    frequency:
      name: "Frequency"
      accuracy_decimals: 2
    update_interval: 5s


uart:
  id: uart_bus
  tx_pin: GPIO6
  rx_pin: GPIO7
  baud_rate: 9600
  stop_bits: 1
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