If you want to see more projects like that please visit my website.
www.ardugeek.pl
If you want to download schematic or see parts list you can visit
https://www.instructables.com/id/How-to-Miniaturize-Arduino-Projects/
If you liked my pcbs and you want to have the same for only 2$ you should visit:
https://jlcpcb.com/
JLCPCB 2$ for 5 pcbs
, https://i.ytimg.com/vi/v3uTybhHVr4/hqdefault.jpg
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