The ELM327 is a programmed microcontroller produced by ELM Electronics for translating the on-board diagnostics (OBD) interface found in most modern cars. Data may include Fuel and Engine diagnostic information.

Features

• Read engine data

• Check Engine Light

• Report error codes

• Clear error codes

• Display current sensor data

• Turn on/off additional features

Technical Specification
Operating frequency band	2.4Hz - 2.84Hz unlicensed ISM band
Bluetooth specification	V2.1+EDR
Output power class	Class 2
Operating voltage	3.3V
Storage temperature	-65°C to + 150°C
Ambient temperature with power applied	-40°C to +85°C
Rated voltage	12V
Rated current	30mA
The voltage on VDD with respect to VSS	0 to +7.5V

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Datasheet

• Manufacturer's website -https://www.elmelectronics.com/

• Manufacturer datasheet

Pinout Diagram

ELM327 integrates directly to the car (OBD) and connects via Bluetooth with the Mila7 Galooli gateway. Therefore ELM37 does not have a wiring diagram.

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Recommended Configuration For Galooli Gateways

Mila7 and K2