Arduino - RS-485 Expansion Board

PES-2607 is an easy-to-use RS422/RS485 Expansion Board for Arduino Uno and Mega, which allows Arduino to exchange data with serial device via RS422 or RS485.
Especially, Arduino does NOT use UART pins to communicate with RS422/RS485 expansion board. Therefore, users can use Arduino UART pins for other purposes.
Moreover, A single Arduino Uno/Mega can communicate with multiple RS422/RS485 expansion boards (up to 14) without using Arduino UART pins.

Library and examples for...

PES-2607 is an easy-to-use RS422/RS485 Expansion Board for Arduino Uno and Mega, which allows Arduino to exchange data with serial device via RS422 or RS485.
Especially, Arduino does NOT use UART pins to communicate with RS422/RS485 expansion board. Therefore, users can use Arduino UART pins for other purposes.
Moreover, A single Arduino Uno/Mega can communicate with multiple RS422/RS485 expansion boards (up to 14) without using Arduino UART pins.

Library and examples for...

PES-2606 is an easy-to-use RS-232 Expansion Board for Arduino Uno and Mega, which allows Arduino to exchange data with serial device via RS-232.
Especially, Arduino does NOT use UART pins to communicate with RS-232 expansion board. Therefore, users can use Arduino UART pins for other purposes.
Moreover, A single Arduino Uno/Mega can communicate with multiple RS-232 expansion boards (up to 14) without using Arduino UART pins.

Library and example for the RS-232 expansion board...

PES-2605 is an easy-to-use stepper motor controller for Arduino Uno and Mega, which uses micro-stepping method to precisely control stepper motor.
Library and example for the stepper motor controller are part of of PhpocExpansion library for Arduino. The library reference is available here.

This tutorial shows how to use the step motor controller with an example of PhpocExpansion library for Arduino.


Hardware Required

• Arduino Uno or Mega
• USB Cable for

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PES-2604 is an easy-to-use DC motor controller for Arduino Uno and Mega.
Library and example for the DC motor controller are part of of PhpocExpansion library for Arduino. The library reference is available here.

This tutorial shows how to use the DC motor controller with an example of PhpocExpansion library for Arduino.


Hardware Required

• Arduino Uno or Mega
• USB Cable for Arduino.
• PHPoC Shield R2 or PHPoC WiFi Shield R2
• DC Motor Controller - PES-2

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PES-2602 is an easy-to-use 4-port Input Expansion Board for Arduino Uno and Mega, which allows Arduino to monitor state of DC electric device. In addition, it can monitor NPN, PNP and dry contact(relay).
Library and example for the 4-port input expansion board are part of of PhpocExpansion library for Arduino. The library reference is available here.

This tutorial shows how to use 4-port input expansion board with an example of PhpocExpansion library for Arduino.

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PES-2601 is an easy-to-use 4-port Relay Expansion Board for Arduino Uno and Mega, which allows Arduino to control DC electric device on/off .
Library and example for the 4-port Relay Expansion Board are part of of PhpocExpansion library for Arduino. The library reference is available here.

This tutorial shows how to use 4-port Relay Expansion Board with an example of PhpocExpansion library for Arduino.


Hardware Required

• Arduino Uno or Mega
• USB Cable for

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