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mLink 4 Channel I2C / Parallel Relay Module

mLink 4 Channel I2C / Parallel Relay Module - Main image
$3.07 $4.58 In stock

Category: Our Brand Exclusives

The mLink relay modules are a range of 5V relay modules that have been designed to be controlled either manually or via a microcontroller. For manual control there is a set of digital pin(s) that can be toggled to directly control the relay. For controlling via a microcontroller there is a serial I2C interface minimising the amount of pins required to control multiple relays or relay modules.

For Arduino users you can use the mLink library (see below) to control any type of mLink module. Only one single instance of the library is needed to control multiple types of mLink modules resulting in very little resources overhead and therefore making it great for Arduinos with small amounts of memory and pin counts.

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Customer Reviews (4.6 / 5 · 5 reviews)

Isabella T. ★★★★★

Bought this to switch a few 12V fans and the manual control pins made testing a breeze without needing to code first. The 4 channels in a single module saved a ton of wiring compared to using separate relays.

Brian ★★★★★

The 5V input made it easy to integrate into my existing microcontroller setup, and the I2C control is responsive with no noticeable lag. I’ve been able to toggle multiple relays in sequence without any hiccups.

Andrew ★★★★★

The digital pins for manual control worked perfectly with my Arduino project right out of the box, and I was surprised how compact the unit is. Switches between I2C and parallel mode without any glitches.