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-# chargeflow
+![ESP32 EVSE](https://github.com/dzurikmiroslav/esp32-evse/wiki/images/logo-full.svg)
+
+J1772 EVSE firmware for ESP32 based devices.
+
+![Build with ESP-IDF](https://github.com/dzurikmiroslav/esp32-evse/workflows/Build%20with%20ESP-IDF/badge.svg)
+[![License](https://img.shields.io/github/license/dzurikmiroslav/esp32-evse.svg)](LICENSE.md)
+
+## Key features
+ - Hardware abstraction for device design
+ - Responsive web-interface
+ - OTA update
+ - Integrated energy meter
+ - [REST](https://github.com/dzurikmiroslav/esp32-evse/wiki/Rest) API
+ - MQTT API
+ - [Modbus](https://github.com/dzurikmiroslav/esp32-evse/wiki/Modbus) (RS485, TCP)
+ - [Scripting](https://github.com/dzurikmiroslav/esp32-evse/wiki/Script)
+ - [Nextion HMI](https://github.com/dzurikmiroslav/esp32-evse/wiki/Nextion)
+
+### Device definition method
+
+_One firmware to rule them all._ Not really :-) one per device platform (ESP32, ESP32-S2...).
+
+There is no need to compile the firmware for your EVSE design.
+Source code ist not hardcoded to GPIOs or other hardware design features.
+All code is written in ESP-IDF without additional mapping layer like Arduino.
+
+All configuration is written outside firmware in configuration file named _board.cfg_ on dedicated partition.
+For example, on following scheme is minimal EVSE circuit with ESP32 devkit.
+
+![Minimal circuit](https://github.com/dzurikmiroslav/esp32-evse/wiki/images/minimal-circuit.png)
+
+For this circuit there is _board.cfg_, for more information's see [Wiki](https://github.com/dzurikmiroslav/esp32-evse/wiki/Board-config).
+
+
+```bash
+#Device name
+DEVICE_NAME=ESP32 minimal EVSE
+#Button
+BUTTON_WIFI_GPIO=0
+#Pilot  
+PILOT_PWM_GPIO=33
+PILOT_ADC_CHANNEL=7
+PILOT_DOWN_THRESHOLD_12=2410
+PILOT_DOWN_THRESHOLD_9=2104
+PILOT_DOWN_THRESHOLD_6=1797
+PILOT_DOWN_THRESHOLD_3=1491
+PILOT_DOWN_THRESHOLD_N12=265
+#AC relay
+AC_RELAY_GPIO=32
+```
+
+### Web interface
+
+Fully responsive web interface is accessible local network IP address on port 80.
+
+Dashboard page
+
+![Dashboard](https://github.com/dzurikmiroslav/esp32-evse/wiki/images/web-dashboard.png) 
+
+Settings page
+
+![Settings](https://github.com/dzurikmiroslav/esp32-evse/wiki/images/web-settings.png)
+
+Mobile dashboard page
+
+![Dashboard mobile](https://github.com/dzurikmiroslav/esp32-evse/wiki/images/web-dashboard-mobile.png)
+
+## Hardware
+
+### ESP32DevkitC
+
+Dev board with basic functionality, single phase energy meter, RS485. One side pcb, for DIY makers easy to make at home conditions ;-)
+
+[EasyEDA project](https://oshwlab.com/dzurik.miroslav/esp32-devkit-evse)
+
+![ESP32DevkitC](https://github.com/dzurikmiroslav/esp32-evse/wiki/images/esp32devkitc.jpg)
+
+### ESP32-S2 DIY ALPHA
+
+ESP32-S2 based EVSE with advanced functionality, three phase energy meter, RS485, UART, 1WIRE, RCM, socket lock.
+
+[EasyEDA project](https://oshwlab.com/dzurik.miroslav/esp32s2-diy-evse)
+
+![ESP32-S2-DA](https://github.com/dzurikmiroslav/esp32-evse/wiki/images/esp32s2da.jpg)