M-DUINO PLC Arduino 21+ I/Os Analog/Digital PLUS - Open Industrial PLC

M-DUINO PLC Arduino 21+ I/Os Analog/Digital PLUS - Open Industrial PLC

Marsoni

M251S

$179.50

Get it in 3 business days with 1 day shipping. Friday, May 29

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.

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A little on the pricey side, but really sturdy and well made. I needed an odd size set of brackets to fit a shelf in an awkward spot. I wasn't sure I'd find brackets with arms long enough for my needs without using some ugly white hardware-store shelf brackets. These look great, are very heavy duty, and just what I needed. I debated the purchase because of their initial cost, but once I got them I realized their quality warranted the premium price. Overall I'm very happy with them.

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Reviewed in the United States on June 26, 2024

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Amazon Customer

Louisville, US

★★★★★ 4

helf Bracke

Size: 4 Pack

Just what I needed

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Reviewed in the United States on May 2, 2026

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Mechelle Burk

Houston, US

★★★★★ 5

Make sure and screw them into a stud, otherwise the shelf is very flimsy

Size: 10 Pack, Size: 10 Pack

These are amazing!!!

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Reviewed in the United States on December 26, 2025

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Keith

New York, US

★★★★★ 5

Worked Perfectly

Size: 4 Pack

They worked perfectly, I use them to hold a hutch inside a trailer to keep it from moving since it was not gonna be mounted against the wall. I use three of the four of these from the frame of the roof for the trailer down to the top of the hutch and they worked excellent

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Reviewed in the United States on June 9, 2025

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Emmanuel

Belleville, US

★★★★★ 5

Great for adding life around your home desk

Good size and sturdy enough for small speakers and great for adding small touches for decorating around your desk without cluttering your desk space

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Reviewed in the United States on December 1, 2025