IoT clock based on ESP32
Retrieve network time display via WIFI
Micro USB 5V is used for power supply, and an AMS1117-3.3V is used to step down the voltage to power the chip.
The display circuit uses a MAX7219 chip to drive two four-digit digital tubes.
Use the DS1302 clock chip to ensure that the time memory can be maintained even under power outages and offline conditions.
The program download part uses CH340N, which is used for program burning and serial port connection for ESP-C3-12F.
[x] Schematic design
[x] PCB diagram design
[x] PCB proofing
[x] Welding test
[x] Functional testing
[x] Program testing
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