ELM327 Emulator

ELM327 Emulator

OBD-II ELM327 adapter emulator for testing diagnostic apps

autodiag2 Development

Download (311 MB) Website

Screenshots

Screenshot of ELM327 Emulator Screenshot of ELM327 Emulator Screenshot of ELM327 Emulator Screenshot of ELM327 Emulator Screenshot of ELM327 Emulator

Description

Simulates an ELM327 OBD-II interface over Bluetooth/BLE/network.
Useful for development and testing without a real vehicle.
Support many protocols CAN, KWP2000, ... any supported by ELM327.
Support OBD-II messages.
Track what have been sent by the scantool using the log.

What’s new (26)

- BLE Profiles
- Godot Car Sim

Versions

Version Date Size Requires Android Download
26 current
ff4bb14bb5a0b582…
 2026-05-27 311 MB API 28
25
c5ea23d02e1e9e0a…
 2026-05-11 18 MB API 28
24
76c1870624a18e8e…
 2026-05-04 18 MB API 28

Permissions

What the app asks the system for. Android only grants sensitive access after you confirm it.

  • BluetoothConnect to Bluetooth devices.
  • BLUETOOTH_ADMIN
  • Bluetooth connectionConnect to paired Bluetooth devices.
  • Bluetooth scanSearch for nearby Bluetooth devices.
  • BLUETOOTH_ADVERTISE
  • Internet accessSend and receive data over the internet.
  • elm327emu.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Comments