SparkFun
Macchina OBD-II 3-Way Breakout
· MPN: BOB-25069
The Macchina OBD-II 3-Way Breakout Board simplifies OBD2 device development by splitting a single OBD2 port into three accessible connectors with flexible si...
The Macchina OBD-II 3-Way Breakout Board simplifies OBD2 device development by splitting a single OBD2 port into three accessible connectors with flexible signal routing. Junction blocks let you reroute individual OBD2 pins between connectors using jumper wires — useful for sniffing traffic, man-in-the-middle testing, or emulating an OBD2 port on the bench.
An external 12 V power input supports desktop development without a vehicle, or you can draw power from the vehicle via an OBD2 extension cable.
Key Features
- 3-Way OBD2 Breakout – 1× male input connector, 2× female output connectors
- Junction Blocks – Fully configurable signal routing between all connectors
- 12 V Power Input – External adapter for bench-top development
- Power Jumpers – Independent power control to each output connector
- CAN Termination – 2 sets of termination resistors included
- Power Indicator – Green LED shows when power is active
Specifications
- Input: 1× OBD2 connector (male pins)
- Outputs: 2× OBD2 connectors (female pins)
- Power: 12 V external or vehicle-supplied via OBD2
- CAN Termination: 2 sets of 120 Ω resistors
Ideal For
- OBD2 device prototyping and development
- CAN bus sniffing and analysis
- Man-in-the-middle signal testing
- Bench-top OBD2 emulation
Package Contents
- 1× Macchina OBD-II 3-Way Breakout Board
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- CAN bus
- CAN bus is a reliable two-wire communication network originally designed for vehicles and now common in machinery and robotics. It matters when you need multiple controllers or devices to share status and control messages in a noisy electrical environment.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
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