# OBD2 Gauge (ESP32 Bluetooth)

## This repository has been archived and is no longer maintained. (October 24th, 2025)

A fully functional code-updated
Last Update: September 27th, 2024

This is an ESP32 OBD2 Gauge for vehicles that are compatible with OBD2
(Special made for FORD vehicle)
 - Prototype https://youtu.be/PkQaUJbzTNM
 - Current Model Short Demo https://youtu.be/vvBIeim7XTE
   
![](/picture/page.jpg)
![](/picture/config.jpg)
![](enclosure/enclosure.jpg)

## Software:
- Arduino IDE 2.3.2 + ESP32 arduino core 2.0.17
- * IMPORTANT * this project won't work with ESP32 arduiino core 3.x.x
- modified TFT_eSPI library 2.5.43

## Hardware
- ESP32 TFT2.8 320x240 with "RESISTIVE" touch board.
buy here  https://s.click.aliexpress.com/e/_Ew95gMl 
- ELM327 Bluetooth adaptor (recommended v1.5 not v2.1)
  Highly recommend ELM327 Bluetooth  adaptor https://s.click.aliexpress.com/e/_oo3THvG
- A small speaker for mobile phone 1 Watt 8 ohm 9x28 mmm.
- A push button 6x6x5 2 legs
- 3d print enclosure
- 12v to 5v dc micro usb power regulator module
- Gauge magnetic stand

## Features:
- Show vehicle data 7 pids
* MAP - manifold air pressure (PSI)
* PCM - pcm voltage (volt)
* ENG LOAD - engine load (%)
* ENG SPD - engine speed (RPM)
* Coolant - coolant temperature (c)
* Oil Temp - engine oil temperature (c)
* TFT - Ford transmission fluid temperature (c)

- 8 layout page selectable display
- DTC read and clear function (Engine warning light only)
- Warning when parameter reaches setting value
- Adjustable warning value for each PIDs
- Configurable CPU overheat protection
- Configurable gauge Auto turn on/off
- Auto screen brightness
- Change off screen to user screen with micro SDcard
- Firmware updatable (micro SDcard and WiFi)
- VIN Read on the About page.


## [Flash Firmware Online](https://vaandcob.github.io/webpage/src/index.html)

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## Emulador OBD2 / ELM327 Bluetooth incluido
En la carpeta  se incluye el script  para emular un adaptador ELM327 v1.5 y la ECU del vehículo vía Bluetooth SPP en Linux. Permite probar y validar la pantalla CYD en banco de pruebas sin necesidad de conectarse a un auto real.
Consulta [emulator/README.md](emulator/README.md) para ver requisitos y modo de uso.