Nice product, but with a flaw
For Musical LED Christmas Tree KIT
A nice little project to practice soldering, both thru-hole and SMD. The instructions manual has plenty of pictures explaining what to do and how to place all parts, although I'd appreciate a few words (or even just a link) about how to solder SMD components.
After finished building and plugging in two CR2032 batteries, a not-so-nice surprise: very faint and quickly decaying LEDs, and no sound. I figured there was some sort of short circuit, and I found it between the + terminal of the buzzer and the battery holder. I noticed the two parts are really close to each other, so close I thought they were meant to be connected together while soldering. I think 1-2mm more distance between the two parts could have avoided the problem.
Once the short has been fixed, everything went great! Lights and sounds are a nice reward after a couple hours of beginner work.
Response from Electronics corner | Dec. 22, 2020
I am glad you solved the little problem you had. I note it for further versions. Thanks!