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evcc_eink_monitor

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evcc E-Ink Monitor

// repository documentation

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# EVCC E-Ink Monitor
A ESP8266 based IoT Device as a EVCC status monitor.

## About
The aim of this project is to use the EVCC Rest-API to realize a basic Monitor to show the actual status on a low power E-Ink Display.

The software was primarily developed and tested for the Waveshare E-Ink Display 400x300, 4.2inch E-Ink raw display, three-color. The ESP8266 controller will frequently aquire the status of the evcc server and Update the Display to visualize the actual status.

## Features
1. Easy to setup Config Menü, thanks to IoTWebConf
2. Statuspage for quick functional checks
3. Accesspoint for inital setup (via phone, computer, tablet)
4. Several Options if no Car is connected (Wallbox idle) -> Clear, EVCC Logo or 24h PVGraph
5. Fast Display Update if Setting change have been detected
6. Adjustable update rate for data and display

## Images with Car connected
![E-Ink Display Loading now](https://raw.githubusercontent.com/powelllens/evcc_eink_monitor/main/docs/images/loadingnow.jpg)
![E-Ink Display Loading off](https://raw.githubusercontent.com/powelllens/evcc_eink_monitor/main/docs/images/loadingoff.jpg)

## Image during Idle with 24h PV Graph
![ Display Idle - PV Graph](https://raw.githubusercontent.com/powelllens/evcc_eink_monitor/main/docs/images/24hpvgraph.jpg)

## Setup Page if connected via AP or Wifi
![Webserver Setup page](https://raw.githubusercontent.com/powelllens/evcc_eink_monitor/main/docs/images/setuppage.JPG)
![Webserver control page](https://raw.githubusercontent.com/powelllens/evcc_eink_monitor/main/docs/images/controlpage.JPG)

## Knows Issues / Limitations
1. Admin Login Password is shown on the Display during startup (this is a Security issue and might change in the future)
2. No Support for multiple Loadpoints
3. No Input capabilities, display only
4. I had to rewrite large parts of the waveshare software to get non-blocking code, so the code examples are no longer compatible with other displays. (Including some bugfixes)

## Acknowledgements

### Third party libraries
* [IotWebConf](https://github.com/prampec/IotWebConf)
* [ArduinoJson](https://github.com/bblanchon/ArduinoJson)
* [Waveshare](https://www.waveshare.com/wiki/4.2inch_e-Paper_Module_(B)#Run_the_Program)

evcc_eink_monitor

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