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Dev tools · September 26, 2015

PJON – Open-source Arduino multimaster communications bus system

PJON (Padded Jittering Operative Network) is an experimental, arduino-compatible, multi-master, multi-media network protocol. - gioblu/PJON

PJON – Open-source Arduino multimaster communications bus system launched on September 26, 2015 with 38 votes, #1,386 of 3,463 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 11 years on.

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In plain words

PJON is an open-source network protocol designed for Arduino and compatible microcontrollers. It enables multiple devices to communicate simultaneously over a shared bus using various physical media. The system supports multi-master architecture, allowing any connected device to initiate communication. Developed as an experimental protocol, PJON is suitable for developers building distributed embedded systems and IoT applications that require simple, hardware-flexible networking without complex infrastructure.

written from the facts on this page · September 2026

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