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PJON is a tool created to simplify network engineering and communication between devices. Choose the medium you prefer, build your own network of devices and make it work with few lines of code. There are 13 strategies available to communicate data with PJON on various media:

Strategy	Physical layer	Protocol
AS AnalogSampling	Light pulses over air or optic fiber	PJDLS
OS OverSampling	Electrical/radio impulses over wire/air	PJDLR
SB SoftwareBitBang	Electrical impulses over conductive element	PJDL
TS ThroughSerial	Electrical/radio impulses over wire/air	TSDL
TS ThroughSerialAsync	Electrical/radio impulses over wire/air	TSDL
ET EthernetTCP	Electrical/radio impulses over wire/air	TCP
LU LocalUDP	Electrical/radio impulses over wire/air	UDP
GU GlobalUDP	Electrical/radio impulses over wire/air	UDP
DU DualUDP	Electrical/radio impulses over wire/air	UDP
TL ThroughLoRa	Radio impulses over air	LoRa
EN ESPNOW	Radio impulses over air	ESPNOW
LF LocalFile	Shared file system in memory	None
Any	Virtual inheritance, any of the above	Any of the above

Compatibility

Device	AS	OS	SB	TS	ET	LU	GU	DU	TL	EN	LF
Arduino Duemilanove	✔️	✔️	✔️	✔️	✔️	✔️	✔️	✔️	✔️	❌	❌
Arduino Nano	✔️	✔️	✔️	✔️	✔️	✔️	✔️	✔️	✔️	❌	❌
Arduino Uno	✔️	✔️	✔️	✔️	✔️	✔️	✔️	✔️	✔️	❌	❌
Arduino Leonardo	❌	✔️	✔️	✔️	✔️	✔️	✔️	✔️	✔️	❌	❌
Arduino Micro	❌	✔️	✔️	✔️	✔️	✔️	✔️	✔️	✔️	❌	❌
Arduino Mega	✔️	✔️	✔️	✔️	✔️	✔️	✔️	✔️	✔️	❌	❌
Arduino Zero	❌	❌	✔️	✔️	❌	❌	❌	❌	❌	❌	❌
Arduino Due	❌	❌	❌	✔️	❌	❌	❌	❌	❌	❌	❌
ATMega1284P	❌	❌	✔️	✔️	❌	❌	❌	❌	❌	❌	❌
ATtiny84/84A	❌	❌	✔️	✔️	❌	❌	❌	❌	❌	❌	❌
ATtiny85	❌	❌	✔️	✔️	❌	❌	❌	❌	❌	❌	❌
ESP8266	❌	❌	✔️	✔️	❌	❌	✔️	✔️	❌	✔️	❌
ESP32	❌	❌	✔️	✔️	❌	✔️	✔️	✔️	❌	✔️	❌
STM32F103	❌	❌	✔️	✔️	❌	❌	❌	❌	✔️	❌	❌
Nucleo L053R8	❌	❌	❌	✔️	❌	❌	❌	❌	❌	❌	❌
Nucleo F401RE	❌	❌	❌	✔️	❌	❌	❌	❌	❌	❌	❌
Teensy 3.1	❌	❌	✔️	✔️	❌	❌	❌	❌	❌	❌	❌
Raspberry Pi	❌	❌	❌	✔️	✔️	✔️	✔️	✔️	❌	❌	✔️
Windows X86	❌	❌	❌	✔️	✔️	✔️	✔️	✔️	❌	❌	✔️
Linux	❌	❌	❌	✔️	✔️	✔️	✔️	✔️	❌	❌	✔️
Mac	❌	❌	❌	✔️	❌	✔️	✔️	❌	❌	❌	❌
Android	❌	❌	❌	❌	❌	✔️	❌	❌	❌	❌	❌

✔️ compatible - ❌ not compatible

Blink test

For a simple test you can use a couple of Arduino boards, connect together their ground and pin 12.

 Arduino UNO        Arduino UNO
  _________   wire   _________
 | ||   |_||___     |         |
 ||       ||   |    ||       ||
 ||       ||   |    ||       ||
 ||       ||   |____||       ||
 |_________|        |_|_|__||_|
                      

Flash on both arduinos the programs present in the BlinkTest directory. You should see the receiver device blinking every second.

If you want to know more and support the PJON project see the PJON protocol handbook and the PJON 12.0 big box.