Recently Efergy decommissioned their Engage Hub which made a lot of devices redundant (more info HERE)… So this package is aimed at capturing the 433MHz signals and decoding them to give you the actual readings.
(pictures for illustration only)
Other similar projects have been accomplished by others but aren’t similar to this…
- Capture the data from the Efergy Hub and redirect to your own server
- Build your own ESP Home Energy Monitor.
This is purely to use ESP Home to capture and decode the data from the Efergy transmitter and publish to Home Assistant to be used for Energy Tracking.
Entities:
sensor.efergy_currentsensor.efergy_power_usagesensor.efergy_energy_usagesensor.efergy_intervalbinary_sensor.efergy_pairing_modesensor.efergy_tx_idsensor.efergy_battery_state
Hardware Required:
ESP32 board running ESPHomeCC1101 433 MHz moduleEfergy CT Clamp Transmitter
Minimal YAML:
substitutions:
device_name: efergy-sensor
friendly_name: Efergy Energy Monitor
board_type: esp32dev
wifi_ssid: !secret wifi_ssid
wifi_password: !secret wifi_password
fallback_ap_password: !secret fallback_ap_password
mains_voltage: "230.0"
preferred_tx_id: "auto"
external_components:
- source: github://91JJ/Efergy-CT-Clamp-Capture-for-ESP-Home@main
components: [efergy_cc1101]
refresh: 0s
spi:
id: efergy_spi_bus
clk_pin: ${pin_cc1101_sck}
miso_pin: ${pin_cc1101_miso}
mosi_pin: ${pin_cc1101_mosi}
efergy_cc1101:
spi_id: efergy_spi_bus
mains_voltage: ${mains_voltage}
preferred_tx_id: "${preferred_tx_id}"
publish_raw_bytes: ${publish_raw_bytes}
cs_pin: ${pin_cc1101_csn}
gdo0_pin: ${pin_cc1101_gdo0}
gdo2_pin: ${pin_cc1101_gdo2}
current:
id: efergy_current_a
name: "${friendly_name} Current"
power:
id: efergy_power_w
name: "${friendly_name} Power Usage"
interval:
id: efergy_interval_s
name: "${friendly_name} Interval"
pairing:
id: efergy_pairing
name: "${friendly_name} Pairing Mode"
tx_id:
id: efergy_tx_id
name: "${friendly_name} TX ID"
battery_state:
id: efergy_battery_state
name: "${friendly_name} Battery State"
raw_bytes:
id: efergy_raw_bytes
name: "${friendly_name} Raw Bytes"
disabled_by_default: true
sensor:
- platform: copy
id: efergy_power_kw
source_id: efergy_power_w
internal: true
unit_of_measurement: "kW"
accuracy_decimals: 4
filters:
- multiply: 0.001
- platform: integration
id: efergy_energy_kwh
name: "${friendly_name} Energy Usage"
sensor: efergy_power_kw
unit_of_measurement: "kWh"
device_class: energy
state_class: total_increasing
time_unit: h
restore: true
accuracy_decimals: 3
Locking TX ID:
I’ve noticed the code isn’t great at finding & locking the TX id… However, if you watch the logs you should be able to identify it yourself and change the config from auto to your TX ID.
NOTE: I'm a novice with Github, FSK & ESP Home so any improvements are welcomed.