3.8 KiB
VictronMPPT-ESPHOME
ESPHome component to monitor a Victron MPPT Charger via ve.direct / UART TTL
Supported devices
All Victron MPPT Chargers providing a ve.direct port.
Tested devices
- Victron SmartSolar MPPT 75/15
- Victron SmartSolar MPPT 100/20
- Victron SmartSolar MPPT 150/35
- Victron SmartSolar MPPT 250/70
- Victron Phoenix Inverter 12/500
Requirements
- ESPHome 2021.10 or higher.
- Generic ESP32 or ESP8266 board
Schematics
UART-TTL
┌────────────────┐ ┌──────────────────┐
│ GND o│<-------------->│o GND │
│ Victron TX o│--------------->│o D7 ESP32/ │
│ Charger RX o│ │ ESP8266 │<-- GND
│ 5V o│ │ │<-- 3.3V
└────────────────┘ └──────────────────┘
# UART-TTL jack (JST-PH 2.0mm pinch)
┌─── ─────── ────┐
│ │
│ O O O O │
│GND RX TX VCC │
└────────────────┘
If you are unsure about to pin order please measure the voltage between GND and VCC (5V). If you measure a positive voltage you know the position of VCC and GND!
JST-PH jack
Pin | Purpose | ESP pin |
---|---|---|
1 | GND | GND |
2 | RX | |
3 | TX | D7 (RX) |
4 | 5V |
Installation
You can install this component with ESPHome external components feature like this:
external_components:
- source: github://KinDR007/VictronMPPT-ESPHOME@main
uart:
id: uart0
tx_pin: D8 # Not used! The communication is read-only
rx_pin: D7
baud_rate: 19200
rx_buffer_size: 256
victron:
id: victron0
uart_id: uart0
sensor:
- platform: victron
victron_id: victron0
panel_voltage:
name: "Panel voltage"
battery_voltage:
name: "Battery voltage"
battery_current:
name: "Battery current"
or just use the esp8266-example.yaml
as proof of concept:
# Install esphome
pip3 install esphome
# Clone this external component
git clone https://github.com/KinDR007/VictronMPPT-ESPHOME.git
cd VictronMPPT-ESPHOME
# Create a secret.yaml containing some setup specific secrets
cat > secrets.yaml <<EOF
mqtt_host: MY_MQTT_HOST
mqtt_username: MY_MQTT_USERNAME
mqtt_password: MY_MQTT_PASSWORD
wifi_ssid: MY_WIFI_SSID
wifi_password: MY_WIFI_PASSWORD
EOF
# Validate the configuration, create a binary, upload it, and start logs
esphome run esp8266-example.yaml
The uart_id
and victron_id
is optional if you use a single UART / victron device. All sensors are optional.
The victron device pushs one status message per second. To reduce the update interval of the ESPHome entities please use the throttle
parameter to discard some messages.
The available numeric sensors are:
max_power_yesterday
max_power_today
yield_total
yield_yesterday
yield_today
panel_voltage
panel_power
battery_current
day_number
charging_mode_id
error_code
tracking_mode_id
load_current
ac_out_voltage
ac_out_current
battery_voltage
device_mode_id
warning_code
The available text sensors are:
charging_mode
error
tracking_mode
firmware_version
device_type
device_mode
warning
Binary sensors:
load_state
relay_state
Big thanks for help to ssieb for the support!