Digital Led Clock and Temperature Unassembled DIY Kit 4-digit Display Transparent Case White light

Specifications

• Display: 4-Digit 7-Segment LED (White Light)
• Enclosure: Precision Laser-Cut Transparent Acrylic
• Operating Voltage: 5V DC (via standard USB)
• Temperature Sensor: On-board NTC Thermistor
• Timekeeping: Dedicated RTC (Real-Time Clock) IC with battery backup support (CR1220/CR1225 typically, check board version)
• PCB Material: FR4 Fiberglass with clearly marked silkscreen
• Material: Plastic

Applications

• STEM Education: A hands-on introduction to through-hole soldering and component identification.
• Hobbyist Desktops: A custom-built, modern-looking clock for your workspace.
• Soldering Workshops: Excellent curriculum material for maker spaces and electronics classes.

Features: 

• Ideal digital clock DIY kit for electronics enthusiasts, easy to install. 
• Compact for installation, easier for welding, and DIY by users. 
• With the transparent case, components can be well protected and the clock looks stylish. 
• Automatically display time, temperature, date, and day. 
• Light control, the clock will automatically be brighter during the day, than during the night. 
• Large 4-digit LED display, can show you time and temperature. 
• Useful alarm function and hourly chime function. 

Package Include

• 1 x Digital Led Clock and Temperature Unassembled DIY Kit 4-digit Transparent Case White light
• 1 x cable

Frequently Asked Questions (FAQ)

• What voltage does this DIY clock kit require?
  The clock operates strictly on 5V DC, which can be provided via the included USB cable connected to a standard phone charger or power bank.
• Is the backup battery included in the kit?
  Usually, the CR-series coin cell battery required to keep time when unplugged is not included due to shipping regulations. You will need a standard CR1220 or CR1225 battery.
• Can a beginner solder this kit?
  Yes! It uses entirely through-hole components (no microscopic SMD parts), making it an excellent first or second project for beginners learning to solder.
• Why is my LED display not turning on after assembly?
  Check your power supply first. If power is good, ensure the 7-segment display and the main IC were soldered in the correct orientation according to the PCB silkscreen.
• The temperature reading seems inaccurate. How can I fix it?
  Ensure the thermistor (the small bead-like component) is not touching any other hot components on the board. Bending it slightly away from the PCB can improve ambient reading accuracy.
• Why are some LED segments brighter than others?
  This is typically caused by a cold solder joint on the display pins or the current-limiting resistors. Re-heat the solder joints on the display and add a tiny bit of fresh solder.
• How do I set the time on this digital clock?
  The kit features two tactile buttons (usually SET and PLUS/ADD). Hold the SET button to enter configuration mode, use the other button to change values, and press SET to cycle through hours, minutes, and alarms.
• What color is the LED display?
  This specific kit features bright, modern White LEDs.
• Does the clock lose time when unplugged?
  Not if you have installed the coin cell backup battery. The battery keeps the internal RTC (Real-Time Clock) running even when the 5V USB power is disconnected.
• My acrylic case is brown/opaque, not transparent! Why?
  The acrylic parts are shipped with a protective adhesive paper backing to prevent scratches. Simply peel off this paper with your fingernail to reveal the clear, transparent acrylic.
• How long does it take to assemble this kit?
  For a beginner, assembly takes about 1.5 to 2 hours. Experienced makers can assemble it in under 45 minutes.