esp8266-victron-mppt-solarchargecontroller

This is a online information server with rest api based on esp8266 and Victron Solar MPPT Solar Charge Controller

Hardware

The following hardware is required:

- D1 mini (ESP8266)
- Level Shifter 3.3V / 5V
- Victron MPPT Charge Controller (like SmartSolar 100/30)

Connection

D1 mini -> Level Shifter 3.3V / 5V

D7 / RX -> LV1 / TXI
GND -> GND
3V3 -> LV

Level Shifter 3.3V / 5V -> JST Port am Victron SmartSolar

HV1 / TX0 -> 2 (TX / White)
GND -> 4 (GND / BLack)

Development

This sketch is for following development environment

Arduino

Following libraries are required

https://github.com/me-no-dev/ESPAsyncTCP
https://github.com/me-no-dev/ESPAsyncWebServer

Setup

Setup wifi in esp8266-victron-mppt-solarchargecontroller.ino:

const char* wifi_ssid = "xxx";
const char* wifi_password = "xxx";

Setup victron device in config.h:

#define MPPT_100_30    // Define used Victron Device

Actual Supported:

• "MPPT 75 | 10"
• "MPPT 75 | 15" tested with FW 1.56
• "MPPT 100 | 20" tested with FW 1.5 / 1.56
• "MPPT 100 | 30" tested with FW 1.59

Upload to device

Following files needs to be uploaded to the ESP8266 (D1 mini)

esp8266-victron-mppt-solarchargecontroller.ino
index_page.h
config.h

Show info

Access webpage on http://[IPADDR]

Access rest api on GET http://[IPADDR]/rest