This device did not work for me. At some brightness percentages, the bulb is dim, at others it is completely off, and at others it shines at full power. Seemingly random when I went up (20%, 30%). Tried multiple bulbs with the same result. I can't tell if it was a hardware issue or a software library issue. First, the packaging was terrible - just wrapped in a thin piece of foam in an anti-static bag (no box) and then shipped in bubble wrap - so it's possible the unit was damaged in transit. The library was also terrible with poor documentation and obvious bugs in the readme, leading you to suspect these are bugs in the code as well. The library is also written for a 1-channel board, with no explanation of how to use it if you buy a 2-channel or 4-channel board (it's not hard to understand once you understand the basics of programming , but still). Also doesn't seem to work with ESP8266 devices, although the readme says it should. Several bug reports have been submitted to GitHub, but they seem to have been ignored.
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