VictronSmartShunt-ESPHOME-iobroker

ESPHome component to monitor a Victron SmarShunt via ve.direct / UART TTL with an ESP8266 Board

Its customized for IoBroker with mqtt connection

Also added:

Restart Button (topic is publishes to the broker after startup with payload "PRESS " - to restart the ESP, send "PRESS" to this topic)
some debug sensors
uptime sensor
wifi signal sensor
UART connection indicator as a binary sensor, as well as a number (0 = disconnected / 1 = connected)
reads UART package every 1s (configurable variable "victron_throttle") - and does not drop packages via fixed throttle
MQTT publish only on value change or after reaching "sensor_force_update_time" (defaults to 60s)

MQTT Topic structure made for IOBroker

Tested devices

Victron SmartShunt 500A/50mV

Requirements

ESPHome 2021.10 or higher.
Generic 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