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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I absolutely love my Timex Ironman watches. I have had many over a very long period of time. Wonderful set of functions for the price. Very affordable. Easy to use. Lasts a long time. Very easy to read in standard lighting. I like the Indiglo when needed, but do not use it too often. Absolutely love the ability to set a repeat timer to remind me to do something at a fixed interval, or to keep me on task for a fixed period of time. Great to be able to set three independent alarms. Potential to capture a huge number of splits with the stopwatch. I purchased this watch to replace a similar model with a dead battery. I have replaced batteries in the past, but it is quicker and easier to buy a replacement watch. I am saving my old watches for that day in the future when the Ironman model may no longer be available. I expect this will be my watch of choice for the rest of my life.

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Reviewed in the United States on May 21, 2026

Verified Purchase

E-Dub

San Leandro, US

★★★★★ 5

Just fine if you have simple needs...

Color: Black/Digital/Black/Green

Exactly what I needed: a cheap, durable wrist watch. The only thing it was lacking were instructions, but about 5 minutes of messing with the buttons got it set up

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Reviewed in the United States on May 19, 2026

Verified Purchase

S S.

Chelsea, US

★★★★★ 5

Nice watch

Color: Black/Digital/Black/Green

Good watch

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Reviewed in the United States on April 30, 2026