IoT clock
Network time can be retrieved through WIFI, and network configuration can be performed through WeChat.
[x] Schematic design
[x] PCB diagram design
[x] PCB proofing
[x] Welding test
[x] Functional testing
[x] Program testing
When soldering the USB interface pins, be careful not to connect the tin (maybe it was my first time soldering USB, and I broke several boards. Hehe)
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