Description

Interface Icom to Raspberry for radio over ip ROIP

This interface allows Icom radios equipped with an RJ45 PTT connector and a 3.5 mm speaker output to be connected to a Raspberry Pi, enabling remote control and operation over a Radio over IP (RoIP) system.

This board attenuates the speaker output to match the line-level input of the Raspberry Pi. It also attenuates the Raspberry Pi’s line output to make it suitable for the radio’s microphone input.

Note: The Raspberry Pi only provides a single audio jack output. Therefore, I use a low-cost USB sound card (input + output), purchased online for around $4.

The software was developed in-house with the help of AI tools. It remains fairly basic and has not been published. A minimal web interface allows remote control of the PTT (ON/OFF) when the Raspberry Pi is connected.

The voice transmission (audio TX) part is still under development. However, the hardware side is complete, tested, and fully functional.

Download Gerbers Download BOM(Bill of materials)

Mar 28,2026

245 views

Interface Icom to Raspberry for radio over ip ROIP

This interface allows Icom radios equipped with an RJ45 PTT connector and a 3.5 mm speaker output to be connected to a Raspberry Pi,

245

Published: Mar 28,2026

Standard PCB

Download Gerber file 3

BOM(Bill of materials)

PCBWay Donate 10% cost To Author

Only PCB

PCB+Assembly

Add to cart

Project images are for reference only. Actual production is based on the manufacturing files on the project page. Please review the designer's notes (e.g., PCB thickness) and select the appropriate options. PCBWay is not responsible for issues caused by unsuitable parameter selections.
For more important ordering information, please refer to Read More

Copy this HTML into your page to embed a link to order this shared project

Copy