4 Digital AT89C2051 Electronic Clock Kit

4 Digital AT89C2051 Electronic Clock Kit is a DIY digital clock project based on the popular AT89C2051 8-bit microcontroller. It features a 4-digit 7-segment LED display, precise timekeeping using a 12MHz crystal oscillator, and push-button time setting. This kit is ideal for electronics hobbyists, students, and embedded system learners to explore microcontroller-based timing applications.

Key Features:

• Digital clock with 4-digit 7-segment display
• Powered by AT89C2051 microcontroller
• Real-time hour and minute display (24-hour format)
• Manual time adjustment using onboard push buttons
• Easy-to-assemble DIY soldering kit

Technical Specifications:

• Microcontroller: AT89C2051 (8051-compatible)
• Display: 4-digit 7-segment red LED
• Clock frequency: 12MHz crystal oscillator
• Voltage Supply: 5V DC
• Time format: 24-hour
• Current Consumption: < 50mA (typical)

Mechanical Specifications:

• Component Type: Through-hole THT components
• PCB Color: Green or Blue (varies by batch)
• Display Color: Red 7-segment
• Assembly: Soldering required

Dimensions:

• PCB Length: ~70mm
• PCB Width: ~35mm
• Height: ~15mm with components

Mounting Options:

• Standalone desktop mounting (using adhesive feet or case)
• Mountable into custom enclosures
• Can be embedded into clocks, panels, or school projects

Schematic Diagram, Connection, Wiring and Pinout:

• Powered via 5V DC header or battery connection
• AT89C2051 I/O lines connected to 7-segment display and push buttons
• Minimalist design: resistors, capacitors, and crystal oscillator onboard

Datasheet/User Manual:

• AT89C2051 Microcontroller Datasheet
• Clock Kit Assembly Guide and Schematic (PDF)

Applications:

• DIY Electronics Learning Projects
• School and college microcontroller projects
• Timing circuits for hobby applications
• Embedded system development and training

Equivalent:

• 4-Digit AT89C4051 Digital Clock Kit
• 8051 Timer Display Training Kit
• Arduino-based Real-Time Clock Modules (for similar functionality)

Package Includes:

• 1 x Assembled or unassembled clock PCB
• 1 x AT89C2051 Microcontroller (pre-programmed)
• 1 x 4-digit 7-segment LED display
• All required passive components and headers
• 1 x Crystal oscillator (12MHz)
• 2 x Push buttons for time setting