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#8th LCSC Electronics Design Contest# Electronic Clock

 
Overview

Project Function Introduction:

 
1. Uses R7FA2E1A72DFL as the main clock control chip
 
. 2. Uses a four-digit 0.56mm common cathode LED display to show the time.
 
3. Collects ambient temperature using a DHT11 temperature and humidity sensor
 
. 4. Uses four independent buttons for clock setting, temperature and humidity display, and buzzer on/off.
 
5. Includes a reset button and serial port download circuit for easy downloading and debugging.
 
6. Uses a passive buzzer for button prompts.
 
7. Uses an AO3401Ap channel MOSFET and a 1N5819 diode to form a power switching circuit.
 
8. Uses a TP4056 to charge the battery.
 
 
Open source protocol
GPL 3.0.
 
Hardware:
JLCPCB EDA.
 
 
Software:
e2studio
 
 
competition logo verification

 
 
 
video demonstration
: https://b23.tv/IpbeC13
 
 
 
 
参考设计图片
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Update:2026-03-26 01:06:09

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