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TJ-56-428 4‑Digit Digital DIY Clock Kit – a complete, ready‑to‑build alarm clock that combines a sleek acrylic shell with a robust 4‑digit display. This kit is designed for electronics enthusiasts and beginners alike, offering a hands‑on soldering experience while producing a functional timepiece you can proudly display.
Key Highlights
- 4‑digit 7‑segment LED display with backlight for clear visibility
- Sturdy acrylic shell – lightweight yet durable, perfect for desk or wall mounting
- Integrated alarm and timer functions with adjustable volume and snooze options
- All‑in‑one PCB with pre‑printed traces for easy soldering and minimal wiring
- Includes a 3‑pin connector, resistors, capacitors, and a crystal oscillator – no extra parts required
- USB‑powered (5V) or 9V battery compatible, giving you flexibility in power options
- Clear, step‑by‑step instruction manual with circuit diagrams for learning electronics
- Great educational tool for schools, makerspaces, and hobbyists looking to sharpen soldering skills
Product Details
The TJ‑56‑428 kit comes fully assembled with a transparent acrylic case that showcases the internal circuitry, making it a great visual aid for teaching or self‑learning. The PCB is designed with a compact footprint, so the finished clock fits comfortably in a small desk or shelf. All components are rated for long‑term reliability, ensuring your clock keeps time for years.
Learning & Practice
Whether you’re a student, a DIY electronics hobbyist, or a teacher, this kit offers a practical platform to:
- Master basic soldering techniques on a low‑risk, high‑reward project
- Understand digital clock logic and timing circuits
- Explore the use of crystal oscillators and frequency dividers
- Apply troubleshooting skills by diagnosing common issues like mis‑aligned pins or faulty resistors
Perfect for Hobbyists & Educators
Use the TJ‑56‑428 as a classroom demonstration, a workshop starter kit, or a personal project to build confidence in electronics assembly. Its modular design allows for future upgrades – swap the clock module for a different display or add a Bluetooth module for remote time sync.
Price: $ 5.44