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JLCPCB:0.8" LED Digital Clock

June 27, 2020 by Catherine Sui
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Hope this article can help with you homemade DIY LED clock

Hardware

LED 钟.jpeg

High precision LED electronic clock based on STM32

Step 1: Description

背面.jpeg

PCBs were designed and manufactured by JLCPCB by $2 for 5 pcs

Features

1 0.8 inch large LED digital tube, clear display

2 Based on STM32F030F4P6 MCU

3 RTC clock IC adopts domestic SD3078, 3.8 PPM, annual error 2 min.

4 Temperature display

5 Optional alarm and hourly function

6 Optional automatic light sensing

Note: Source code is the TrueStudio project file, please use TrueStudio version 9.3.0 import. If you don't want to modify the source code, download the binaries directly via ST-Link

Step 2: Manufacture Files

Clock Schematic.png

Enclosed the Schematic file, PCB file, and BOM list

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