ELM OBD Terminal

About ELM OBD Terminal Android App

Tool for Android devices - Version 2.1.7

ELM OBD Terminal is an OBDII compatible app. It can communicate with and the vehicle ECU via adapter ELM327 (or compatiple) on base of Bluetooth or Wi-Fi platform

Connection settings
1. Bluetooth connection - select proper bluetooth device
2. WiFi connection - select correct IP address and port
Default values:
IP address : 192.168.0.11
port: 35000

Resources
1. Available list of AT commands
2. Available list of generic OBDII PIDs

Sending command:
The app can issue any ELM327 AT command or hexadecimal OBDII PIDs

1. By selecting from available list of AT commands (OBDII PIDs) and tapping the Button Send.
2. By directly typing the AT command (OBDII PIDs) and tapping the Button Send.

After sending the sent command (OBDII PID) is displayed on the screen with the icon of TX

Receiving Response
The respond is displayed in the screen with icon of RX.

Note
This app does not translate the responses from the car's ECU to human readable format.
So the user must translate them self these responses to readable format

Most of generic OBDII PIDs are fetched from available list have support formulas

Some AT command:
ATZ - reset all
AT WS - warm start
AT@1- display the device desription
AT@2 - display the device identifier
AT H1 - set headers on
AT H0 - set headers off
AT SP n - set protocol to n
AT DP - Describe the current protocol
AT AL - allow long (>7 byte) messages
AT AR - automatic receive
AT AT0 - adaptive timing off
AT AT1 - adaptive timing auto1
AT AT2 - adaptive timing ato2
AT BD - perform buffer dump
AT CAF0 - CAN auto format off
AT CAF1 - CAN auto format on
. . .

Some Generic OBDII PIDs (hexadecimal format without part of 0x)
03 - show stored diagnostic trouble codes
04 - clear stored trouble codes and stored values
07 - show pending trouble codes
0A - show permanent diagnostic trouble codes
0902 - VIN vehicle identification number
0904 - calibration ID
0100 - PIDs supported [1..20]
010C - engine RPM - rpm, formula: (256*A + B)/4
010D - vehicle speed - km/h, formula : A
. . .
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