Lysignal Channel Interface Optocoupler Protection Review

According to my experience, this product is a complete letdown. Its supposed to protect my car, but instead it destroyed my switch and relay system which now needs a complete overhaul.The only positive thing was the vague and confusing instructions that came with it. Save your money and find a better Automotive switch and RELAY protector!

Like many others, I surf the internet before building anything, mostly because many of the modules I need can be bought off the shelf for significantly less than I could assemble them myself, and without great effort! This is one of them: an 8-channel relay board that connects to the Arduino and even has optocoupler protection! And it's less than 8 dollars! (Ok, it's not much less than $8, but you get the idea). Saves me time and money which is good! And yet it works perfectly. Highly…