3 pcs Genuine PWM Ac Programmable Light Dimmer 110V - 220V AC Module Controller Compatible 50/60hz 3.3V/5V Logic Compatible with Arduino, STM, ARM, Raspberry

UPdate- Hardware is good got it working without using any libraries that are thought to work. I will be digging into the library that the manufacture suggests and hopefully understand why it wont compile on my rig. I connect to a nano, UNO, a Mega, and ESP8266 and work. I did boost the rating to 4 stars but frustration with finding a working library pinged it. Especially when I can find other devices with working examples right out of the box on an UNO with no fiddling. When I find a piece of hardware I do not want to go backwards to reverse code/engineer I need to but the hardware to place into the project to move forward. This is a two year old project I needed to wrap up and I thought this would be the final piece for proof of concept. Hardware is good and does what is expected to. I will be using this hardware to move my project forward. -d²Frustrating to find examples. The ones in GitHub and library do not compile for the UNO as stated. Finding online threads has been cyclic and last thread was not resolved and a year old. Libraries show activity a year ago as well. Several dead links on site. This device would have solved a lot of issues that I have had with a product but now I have to go backwards to make this item work.the .ino examples did not work for me on an UNO but I cannot even get their out of the box examples to compile. Device as hardware looks solid, circuit diagram on line is good and usable. Just wish code would have worked. Will have to dig deeper than I wanted to in this product to make it work. Uses interrupts and PWM to achieve dimming of AC lighting.-d²

Good product good quality.