https://github.com/florianbr/esp32_victron

ESP32 E-Ink display to show stats of victron devices
https://github.com/florianbr/esp32_victron

eink esp-idf esp32 smartshunt smartsolar victron victronenergy

Last synced: about 1 month ago
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ESP32 E-Ink display to show stats of victron devices

• Host: GitHub
• URL: https://github.com/florianbr/esp32_victron
• Owner: FlorianBr
• License: gpl-3.0
• Created: 2024-09-11T07:37:35.000Z (2 months ago)
• Default Branch: main
• Last Pushed: 2024-09-29T10:13:30.000Z (about 2 months ago)
• Last Synced: 2024-10-13T00:02:07.131Z (about 1 month ago)
• Topics: eink, esp-idf, esp32, smartshunt, smartsolar, victron, victronenergy
• Language: C
• Homepage:
• Size: 95.7 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# ESP32 Victron Display

## What is it?

For the [Victron](https://www.victronenergy.de/) devices I have in my camper van I want some low-power display to see the stats like battery capacity and solar panel power. Currently supported:

- 500A Smart Shunt

- Smart Solar MPPT 75/15

### The Hardware

A [Heltec Vision Master E290](https://heltec.org/project/vision-master-e290/) with a ESP32, 2.90inch E-Ink Display, LoRa and battery connector. At the moment without any additional hardware.

I will also add a 3D printed case some time in the future.

### The Software

Libraries used:

- ESP-IDF v5.3

- LVGL 9.2

## Features

- [x] Basic operating system

- [x] EINK Driver

- [x] Basic LVGL setup

- [x] Bluetooth: Device detection

- [x] Victron: Driver

- [x] Victron: Decryption

- [x] Victron: Receive smart shunt data

- [x] Victron: Receive solar charger data

- [x] Victron: Receive charger data

- [ ] Victron: Refactoring

- [ ] LVGL: Change Theme to Monochrome

- [ ] LVGL: Fix display orientation

- [ ] Display current states

- [ ] Display battery capacity, voltage and current

- [ ] Display solar panel power

- [ ] Display battery graph

- [ ] Display solar graph

- [ ] Data: Average data

### Maybe

- [ ] WiFi

- [ ] Sending Data to a MQTT broker

- [ ] Sending Data via LoRa to my LoRa-Central

- [ ] Store keys in NVS

- [ ] Add and Remove keys with MQTT commands

## Notes

- LV_COLOR_FORMAT_ARGB8888 must be enabled for rotations

- Unuse Bits/Bytes in the Victron structs are NOT transfered!

- For some reason the Android App showed the first byte of the encryption key of SmartSolar incorrectly. Instead of b5 it showed only 5.

## Useful links

- Fabian Schmidts [ESPHome Component](https://github.com/Fabian-Schmidt/esphome-victron_ble)

- Victrons [Blogpost](https://communityarchive.victronenergy.com/questions/187303/victron-bluetooth-advertising-protocol.html) about the BLE Protocol

- Victron Spec [Extra Manufacturer Data](https://communityarchive.victronenergy.com/storage/attachments/48745-extra-manufacturer-data-2022-12-14.pdf)

- Victron Spec [VRegs](https://www.victronenergy.com/upload/documents/VE.Can-registers-public.pdf)