Shelly EM Gen3 [Solved]

ESPHome
1

I’ve flashed a Shelly EM Gen3 with ESPHome and added BTHome as per user @badrpc. That works great.

I’ve also created switches for the dry contact relay and the status LED as per the pinout described here. However, you will see that the IRQ pin is not known.

Everything is working great except the ADE7953, which is what is needed in order to get energy readings from the device (the most important part!). I have tried every pin as the IRQ to no avail. I have also tried changing the I2C bus to GPIO18/19 and assigning the IRQ to GPIO6 and then 7, to no avail.

I tried assigning SPI to GPIO18/19/20 and then using pins 4/5, and then 6/7, to try the SPI version of ADE7953 as described in the ESPHome docs. Both attempts gave me readings for the first time, but they were just maxed out static numbers (like 191,000 volts or something like that) so that didn’t work either.

Does anyone have any ideas as to how I can get this energy meter to work with ESPHome? Here’s my config.

esphome:
  name: shelly-em-gen3
  friendly_name: Shelly EM Gen3

esp32:
  board: esp32-c3-devkitm-1
  framework:
    type: esp-idf

# Enable logging
logger:

# Enable Home Assistant API
api:


ota:
  - platform: esphome
    password: "not_important"

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

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Shelly-Em-Gen3 Fallback Hotspot"
    password: "not_important"

captive_portal:

#GPIO 0 is Built-In Relay
#GPIO 1 is Built-In Button
#GPIO 2 does not work as IRQ
#GPIO 3 is ADC for NTC temperature
#GPIO 4 does not work as IRQ
#GPIO 5 does not work as IRQ
#GPIO 6 is I2C SDA; does not work as IRQ
#GPIO 7 is I2C SCL; does not work as IRQ
#GPIO 8 is a strapping pin; does not work as IRQ
#GPIO 9 is Status LED
#GPIO 10 does not work as IRQ
#GPIO 11 does not work as IRQ
#GPIO 12 is reserved for SPI (SPIHD) when I tried flashing
#GPIO 13 is reserved for SPI (SPIWP) when I tried flashing
#GPIO 14 is reserved for SPI (SPICS0) when I tried flashing
#GPIO 15 is reserved for SPI (CLK) when I tried flashing
#GPIO 16 is reserved for SPI (SPID) when I tried flashing
#GPIO 17 is reserved for SPI (SPIQ) when I tried flashing
#GPIO 18 does not work as IRQ
#GPIO 19 does not work as IRQ
#GPIO 20 does not work as IRQ
#GPIO 21 does not work as IRQ




external_components:
  - source:
      type: git
      url: https://github.com/badrpc/esphome
      ref: v0
    components: [ bthome ]

esp32_ble_tracker:

bthome:
  - id: blu_door_window
    mac_address: XX:XX:XX:XX:XX:XX # MAC-address of BLU sensor
    encryption_key: "not_important" # 128-bit key




i2c:
  sda: GPIO6
  scl: GPIO7




binary_sensor:
  - platform: bthome
    id: blu_door_window
    window:
      id: test_blu_window
      name: "Test blu window"

  - platform: status
    name: "Shelly EM Gen3 Status"




sensor:
  - platform: bthome
    id: blu_door_window

    angle:
      id: test_blu_angle
      name: "Test blu angle"

    battery_level:
      id: test_blu_battery_level
      name: "Test blu battery level"
      entity_category: "diagnostic"

    illuminance:
      id: test_blu_illuminance
      name: "Test blu illuminance"


  - platform: ade7953_i2c
    irq_pin: GPIO1
    voltage:
      name: ADE7953 Voltage
    frequency:
      name: ADE7953 Frequency
    current_a:
      name: ADE7953 Current A
    current_b:
      name: ADE7953 Current B
    power_factor_a:
      name: "ADE7953 Power Factor A"
    power_factor_b:
      name: "ADE7953 Power Factor B"
    apparent_power_a:
      name: "ADE7953 Apparent Power A"
    apparent_power_b:
      name: "ADE7953 Apparent Power B"
    active_power_a:
      name: ADE7953 Active Power A
    active_power_b:
      name: ADE7953 Active Power B
    reactive_power_a:
      name: "ADE7953 Reactive Power A"
    reactive_power_b:
      name: "ADE7953 Reactive Power B"


  # NTC Temperature
  - platform: ntc
    sensor: temp_resistance_reading
    name: "Shelly Temperature"
    calibration:
      b_constant: 3350
      reference_resistance: 10kOhm
      reference_temperature: 298.15K
  - platform: resistance
    id: temp_resistance_reading
    sensor: temp_analog_reading
    configuration: DOWNSTREAM
    resistor: 32kOhm
  - platform: adc
    id: temp_analog_reading
    pin: GPIO3





switch:
  - platform: gpio
    name: "Relay"
    id: relay
    pin:
      number: 0
      inverted: false


  - platform: gpio
    name: "Status LED"
    id: status_led
    pin:
      number: 9
      inverted: true
    restore_mode: ALWAYS_ON




time:
  - platform: sntp
    id: sntp_time
    timezone: America/Los_Angeles
    servers:
     - 0.pool.ntp.org
     - 1.pool.ntp.org
     - 2.pool.ntp.org  





button:
  - platform: restart
    icon: mdi:power-cycle
    name: "ESP Reboot"
2

I took a look at the pinout and realized I had SCL and SDA swapped. I think it might be working with this I2C. Edit: It is working.

i2c:
  sda: GPIO7
  scl: GPIO6
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