Piston (OBD2 & ELM327) for Android

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Key Details of Piston (OBD2 & ELM327)

Piston is the OBD II diagnostic application designed with the simplicity in mind.
Last updated on March 25, 2025
There have been 5 updates
Virus scan status:
Clean (it’s extremely likely that this software program is clean)

Developer’s Description

By Marcin Gierlicki

Piston is the OBD II diagnostic application designed with the simplicity in mind.

The application is capable of:

- reading the live data

- showing the fault codes and clearing them

- displaying the logged freeze frame data

The application requires the OBD II Bluetooth or WiFi dongle (ELM327 based) to communicate with a car.

All the popular OBD II protocols are supported:

- J1850 VPW and PWM

- ISO 9141-2

- KWP 2000

- CAN (11 and 29 bits - both 250 and 500 kBit/s)

If you have any request, comment or suggestion, please don't hesitate to contact me.