DIY LED Digital Clock Kit – 51 MCU Alarm, Date & Temp Display
DIY LED Digital Clock Kit – 51 MCU Alarm, Date & Temp Display
LOTHYE DIY LED Digital Clock Kit – Build Your Own Smart Clock
Put your electronics skills to the test with this feature-packed DIY LED Digital Clock Production Kit from LOTHYE. Powered by an STC15W404AS 51 Microcontroller and a DS1302 real-time clock chip, this beginner-friendly through-hole soldering kit lets you assemble a fully functional desktop clock that displays time, date, day of the week, and temperature — all in a compact enclosure.
⚠️ Please Note: This kit is designed for electronics enthusiasts with basic circuit assembly experience. The kit is verified in good condition before shipping, but successful assembly depends on the builder's soldering and circuit knowledge. Please read all instructions carefully before purchasing. Batteries are not included.
Key Features
- Multi-function Display: Shows time, date, day of the week, and temperature in rotation
- Alarm Clock Function: Set alarms with hourly chime support
- Automatic Brightness: LED display auto-adjusts to ambient lighting conditions
- Power Failure Memory: Retains settings when power is interrupted
- Temperature Correction: Manually calibrate temperature readings for accuracy
- Easy Assembly: All inline (through-hole) components — ideal for beginners and students
- Compact Size: 11.5 cm (L) × 3.2 cm (W) × 4 cm (H) with enclosure
- Includes: Shell enclosure and power supply cable
Technical Specifications
| Microcontroller | STC15W404AS DIP28 |
| Clock Chip | DS1302 DIP8 |
| LED Tube | 1-bit 1-inch common-anode 7-segment display × 4 |
| Display Colors Available | Red, Emerald Green, Blue, White |
| Dimensions (with shell) | 11.5 cm × 3.2 cm × 4 cm |
| Assembly Type | Through-hole (inline components) |
| Origin | Made in Mainland China |
What's Included
- All PCB components (resistors, capacitors, ICs, LED tubes, etc.)
- Plastic enclosure / shell
- Power supply cable
- Batteries NOT included
Who Is This For?
This kit is perfect for electronics students, hobbyists, and makers who want hands-on experience with microcontroller-based circuit design. It's a great introduction to 51-series MCU programming concepts and real-time clock (RTC) modules. Also makes a thoughtful educational gift for anyone interested in DIY electronics.
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Frequently Asked Questions
Q: Do I need soldering experience to assemble this DIY LED digital clock kit?
A: Yes, basic soldering and circuit assembly experience is recommended. All components are through-hole (inline) type, making this one of the simpler DIY electronic kits to build. However, the seller cannot guarantee 100% successful assembly — please read the instructions thoroughly before starting.
Q: What power source does this LED digital clock kit use?
A: The kit comes with a power supply cable. Batteries are NOT included and are not required for main operation via the cable. Check the included instructions for compatible battery specs if you wish to use the power-failure memory backup function.
Q: Can I choose the color of the LED display tubes?
A: Yes! This kit is available in four LED display colors: Red, Emerald Green, Blue, and White. Select your preferred color at the time of purchase.
Q: What functions does this DIY clock kit support?
A: The assembled clock displays the current time, date, day of the week, and temperature. It also features an alarm clock function, hourly chime, automatic display brightness adjustment, power-failure memory retention, and manual temperature correction.