Build the network of the future

With PJON® (Padded Jittering Operative Network) you can connect open-hardware and consumer-electronics products securely, with incomparable flexibility and with no need of a third-party provider or cloud service. Join the revolution.

Embedded systems connected

PJON® is an open-source network protocol able to connect devices using most physical layers and media, such as wires (PJDL, Ethernet, Serial and RS485), radio (ASK, FSK, OOK, LoRa or WiFi) and light pulses (PJDLS). It is released in a single portable implementation that can be easily cross-compiled on many systems like ATtiny, ATmega, ESP8266, Teensy, Raspberry Pi, Windows X86, Apple and Android. It is a valid tool to quickly build a network of devices.


Compatible devices


PJON - ATtiny85 compatible


PJON - ATtiny84/84A compatible

Arduino Uno

PJON - Arduino uno compatible

Arduino Leonardo

PJON - Arduino Leonardo compatible

Arduino Mega

PJON - Arduino Mega compatible

Arduino Nano

PJON - Arduino Nano compatible

Arduino Micro

PJON - Arduino Micro compatible


PJON - Teensy compatible

Arduino Due

PJON - Arduino Due compatible

Bluepill STM32

PJON - Bluepill STM32F103 compatible


PJON - SAMD21 compatible


PJON - ESP8266 NodeMCU compatible


PJON - ESP32 compatible

Raspberry Pi

PJON - Raspberry Pi compatible


PJON - Android compatible


PJON - LINUX compatible


PJON - WINX86 compatible

Mac OS X

PJON - Apple MACOSX compatible


The internet infrastructure is vulnerable, used as a tool of mass surveilance, propaganda and cultural subversion; looking at history and society today, it seems internet users will be soon aware, all at once, of its downsides. Day by day, internet revolutionary features have been eroded with the centralization of:

  • Information with search engines and cloud services

  • Functionality with proprietary applications and platforms

  • Connectivity with social media and providers

We are not only living days where fridges can be hacked, but also where the interruption of a cloud service can render many things useless and many people powerless, or where a single point of failure in the network can disconnect entire regions.


With the PJON Open Standard users can quickly build local or decentralized networking applications without depending on a third-party or be forced to pay for connectivity or license fees. PJON has a wide networking support and it is able to operate on most existing protocols and physical layers:

  • Serial wired, RS485 or radio

  • Ethernet wired or WiFi TCP, UDP and ESPNOW

  • LoRa wireless radio

  • PJDL wired single wire

  • PJDLR wireless radio ASK, FSK and OOK

  • PJDLS wireless light pulses or optic fiber

Thanks to the flexibility of the PJON protocol you can create local or decentralized networks in minutes without the need of a cloud service or a paid membership using both open-hardware and off-the-shelf consumer-electronics products. All data remains in your hands and never leaves your network if you don't want to. Furthermore, thanks to the efficient and flexible address-space of PJON, your application can be finally secure, quick and efficient.

Let's network

With PJON® makers can communicate with each other and with their devices securely, anonymously and for free. This is possible thanks to the flexibility of the PJON protocol, able to operate on a wide range of media, such as wires, unlicensed radio frequencies or light pulses. Users are free to build a multi-media network infrastructure in minutes, handle data locally, operate devices in their private space and network with neighbours without needing paid connectivity or a cloud service.


The PJON protocol handbook

This is the first publication about PJON, which contains the documentation, the specification, many application examples and troubleshooting techniques. The book is Made in Italy and within its 204 pages the whole PJON network protocol stack and its strategies are accurately described with graphs, color pictures and comments on its implementation. Choosing this handy format, you will always have PJON with you, also when not being connected to Internet.