OBDII dashboard for TTGO-T4 module (ESP32) + OBD BLE4.0 adapter. Working on Kia e-NIRO (EV) and Hyundai Kona. Use it at your own risk! Author: [email protected] (Lubos Petrovic / Slovakia)

• LILYGO TTGO T4 v1.3 ~USD $30 https://www.banggood.com/LILYGO-TTGO-T-Watcher-BTC-Ticker-ESP32-For-Bitcoin-Price-Program-4M-SPI-Flash-Psram-LCD-Display-Module-p-1345292.html I RECOMEND TO REMOVE LION BATTERY IF INCLUDED! But be very very carefull. I will make video when I get new TTGO
• OBD BLE4.0 adapter. Officialy supported is only this model...
  Vgate iCar Pro Bluetooth 4.0 (BLE) OBD2 ~USD $30
• 3D printed case... https://www.thingiverse.com/thing:3099913

Guide is here https://docs.google.com/document/d/1nEezrtXY-8X6mQ1hiZVWDjBVse1sXQg1SlnizaRmJwU/edit?usp=sharing

• Buy Me a Beer via paypal https://www.paypal.me/nickn17
• EU companies can support me via IBAN/Invoice (my company is non-VAT payer in Slovakia).

Thank you for supporting me.

Many thanks to Blas, Jens, Калин and others for help.

• Middle button - menu
• Left button - toggle screens

Screen list

• no0. blank screen, lcd off
• no1. summary info (default)
• no2. speed kmh + kwh/100km (or kw for discharge)
• no3. battery cells + battery module temperatures
• no4. charging graph
• no5. consumption table. Can be used to measure available battery capacity!

• fixed ble device pairing
• added command to set protocol ISO 15765-4 CAN (11 bit ID, 500 kbit/s) - some vgate adapters freezes during "init at command" phase

• added support for different units (miles, fahrenheits, psi)

• added menu
• Pairing with VGATE iCar Pro BLE4 adapter via menu!
• Installation with flash tool. You don't have to install Arduino and compile sources :)
• New screen 5. Conpumption... Can be used to measure available battery capacity!
• Load/Save settings
• Flip screen vertical option
• Several different improvements

• added new screens (switch via left button)
• screen 0. (blank screen, lcd off)
• screen 1. (default) summary info
• screen 2. speed kmh + kwh/100km (or kw for discharge)
• screen 3. battery cells + battery module temperatures
• screen 4. charging graph
• added low batery temperature detection for slow charging on 50kW DC (15°C) and UFC >70kW (25°C).

• first release
• basic dashboard

ESP32-TTGO-T4 https://github.com/fdufnews/ESP32-TTGO-T4

• install arduino IDE + ESP32 support
• https://github.com/Bodmer/TFT_eSPI - display library
• Configure TFT eSPI W:\Documents\Arduino\libraries\TFT_eSP\User_Setup_Select.h

// Comment
//#include <User_Setup.h>           // Default setup is root library folder
// And uncomment
#include <User_Setups/Setup22_TTGO_T4_v1.3.h>      // Setup file for ESP32 and TTGO T4 version 1.3

My configuration

• Board ESP32 Dev module
• Upload speed 921600
• CPU freq: 240MHz (Wifi/BT)
• Flash freq: 80MHz
• Flash mode: QIO
• Flash size 4MB (32mb)
• Partion scheme: default 4MB with spiffs
• Core debug level: none
• PSRAM: disable