M-DUINO PLC Arduino 21+ I/Os Analog/Digital PLUS - Open Industrial PLCM DUINO PLC Arduino 21+ I Os Analog Digital PLUS Open Industrial PLC (IS. MDuino. 21+) Programmable industrial controller for automation, monitoring and control. Programmable with Arduino IDE without licensing costs. 13x Inputs 6x Analog Digital software configurable 7x Isolated Digital (2 with interrupts) 8x Outputs 5x Digital 3x Digital PWM analog configurable by software Communications: Ethernet, RS485 (2), RS232, UART (Serial TTL x2), SPI and I2C.

Compared with early SHT1x series and SHT7x series

Modbus Gateway (Modbus RTU to Modbus TCP)

It is primarily suitable for standalone Bee Nodes like RFBee

2 RS232/485 to Ethernet device server

Additional TinyShields can be placed on top of this proto board

Use only one microcontroller pin to control as many as you can chain together

Enhanced OpenVPN Design

Long range: SPP 30 meters

The adapter board can be well mated with these popular open source hardware platform but not limited to them

Sensor Monitoring

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Two types of MOSFET chips on board switch the output on and off