Skip to main content
Home / Development Boards & Control Boards / 51 MCU-Based 8-Channel Quiz Buzzer Design Development Board DIY Electronics Training Kit Learning Board

Attributes

Brand -
Category Electronic Components / Maker DIY / Development Boards & Control Boards
Origin -
Microcontroller Model AT89C51 / AT89S52 Compatible
Input Interface 8 Tactile Push Buttons
Visual Feedback 8 Red LEDs per Channel
Audio Feedback Active Buzzer Included
Power Supply 5V DC (USB or Barrel Jack)
Programming Interface 10-pin ISP Header
PCB Material FR-4 Glass Epoxy
Assembly Type Through-Hole Soldering Kit
Board Size 100mm x 80mm x 15mm
Package Contents PCB, Components, Manual, Code CD

5 reviews

A

Anonymous

Apr 15, 2026

Rating: 4/5

Good Value

Works as described. One LED was slightly dim but replaced it easily. Good for understanding interrupt handling.

A

Anonymous

Apr 03, 2026

Rating: 5/5

Perfect for Quiz Nights

We use this for our local trivia contest. The latch circuit works fast and fair. Very reliable.

A

Anonymous

Mar 17, 2026

Rating: 4/5

Nice Kit

Components are quality. Instructions could be more detailed for absolute beginners. Overall satisfied.

A

Anonymous

Feb 14, 2026

Rating: 5/5

Excellent Support

Had trouble compiling the code. Support team sent updated files quickly. Hardware is robust.

A

Anonymous

Feb 08, 2026

Rating: 5/5

Great Learning Tool

Bought this for my electronics club. The schematic is clear and the 8051 code examples are well commented. Soldering was straightforward.

5 FAQ

Q: What is the maximum voltage?

A: Do not exceed 5.5V DC to avoid damaging the MCU.

Q: Can I add more channels?

A: Hardware is fixed at 8, but code can be modified for different logic.

Q: Can this run on battery power?

A: Yes, any 5V DC source works, including power banks.

Q: Is a programmer included?

A: No, you need a separate 8051 ISP programmer.

Q: Is the source code editable?

A: Yes, full C and Assembly source code is provided.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Maike Outdoor Sports Waterproof Backpack Wet-Dry Separation Ski Bag Fishing Creek Fins Multi-Function Gear Storage

Maike Outdoor Sports Waterproof Backpack Wet-Dry Separation Ski Bag Fishing Creek Fins Multi-Function Gear Storage

$152.00

Viral NFC Chip Stickers for Music Wall - Adhesive Read/Write Tags for Song Scanning, Cards, and Photo Frames

Viral NFC Chip Stickers for Music Wall - Adhesive Read/Write Tags for Song Scanning, Cards, and Photo Frames

$2.38

Rechargeable Generation 2 Personal Air Purifier - Safe Portable Electric Fan for Travel Commuting and Flights

Rechargeable Generation 2 Personal Air Purifier - Safe Portable Electric Fan for Travel Commuting and Flights

$181.00

Integrated Sink Splash Guard with Silicone Drain Mat - Auto-Draining Countertop Organizer

Integrated Sink Splash Guard with Silicone Drain Mat - Auto-Draining Countertop Organizer

$23.30

Ultra-Light Aluminum Camping Light Pole – Foldable Mini Lamp Stand for Outdoor Picnics and Tabletop Use

Ultra-Light Aluminum Camping Light Pole – Foldable Mini Lamp Stand for Outdoor Picnics and Tabletop Use

$8.33

bimoz Under-Desk Cable Organizer No-Drill Shelf for Home Office Socket Strip Router Wire Data Cable Fixer Minimalist Wire Winder Dual-Side Mount Ventilated Design

bimoz Under-Desk Cable Organizer No-Drill Shelf for Home Office Socket Strip Router Wire Data Cable Fixer Minimalist Wire Winder Dual-Side Mount Ventilated Design

$40.80

Extended Deep-Cut External Thread Tool Holder with Relief Groove for Swiss-Type Lathe HKFF42R6001

Extended Deep-Cut External Thread Tool Holder with Relief Groove for Swiss-Type Lathe HKFF42R6001

$15.50

Meiao Dental Imported Dental Implant Package, Swiss ITI Straumann Implant Abutment, False Teeth, Filling, and Planting

Meiao Dental Imported Dental Implant Package, Swiss ITI Straumann Implant Abutment, False Teeth, Filling, and Planting

$14,188.00

Assorted Colors Kids' Painting Crayons - Washable Oil Pastels in 12, 18, 24, or 36 Colors for Graffiti and Coloring

Assorted Colors Kids' Painting Crayons - Washable Oil Pastels in 12, 18, 24, or 36 Colors for Graffiti and Coloring

$2.47

Fruit and Vegetable Slicer - Stainless Steel Commercial Electric Multi-Function Shredder for Radish, Potato, Cucumber, Pepper, Automatic

Fruit and Vegetable Slicer - Stainless Steel Commercial Electric Multi-Function Shredder for Radish, Potato, Cucumber, Pepper, Automatic

$2,880.00

CAAS-Developed Granular Insecticide and Fungicide for Vegetable Gardens – Soil Pest Control and Fertilizer for Enhanced Vegetable Growth and Yield

CAAS-Developed Granular Insecticide and Fungicide for Vegetable Gardens – Soil Pest Control and Fertilizer for Enhanced Vegetable Growth and Yield

$13.50

Marie's C6823 Sketch Blending Stumps (3-Pack), Professional Charcoal and Pastel Smudging Tools for Art Students and Beginners, Hard/Small/Highlight Set on Newsprint

Marie's C6823 Sketch Blending Stumps (3-Pack), Professional Charcoal and Pastel Smudging Tools for Art Students and Beginners, Hard/Small/Highlight Set on Newsprint

$7.48

Inverted Water Dispenser Stand with Manual Pump for Large Mineral Water Bottles

Inverted Water Dispenser Stand with Manual Pump for Large Mineral Water Bottles

$67.00

Lanzhai Flagship Store Multifunctional Retro Brush Washer Set, Creative Ceramic Large National Painting Tea Rinse Bowl, Art Display Paperweight, Student Calligraphy Supplies

Lanzhai Flagship Store Multifunctional Retro Brush Washer Set, Creative Ceramic Large National Painting Tea Rinse Bowl, Art Display Paperweight, Student Calligraphy Supplies

$8.42

Multi-Function Vanity Shelf Over Toilet - Floor-Standing Thickened Plastic Storage Cabinet for Squat Toilet Gaps

Multi-Function Vanity Shelf Over Toilet - Floor-Standing Thickened Plastic Storage Cabinet for Squat Toilet Gaps

$52.49

100% Cotton Watercolor Paper Pad 300gsm - Cold/Hot Press, 8K/16K/32K Sizes, Glued on Four Sides for Academy & Portable Sketching

100% Cotton Watercolor Paper Pad 300gsm - Cold/Hot Press, 8K/16K/32K Sizes, Glued on Four Sides for Academy & Portable Sketching

$11.90

Commercial Large Shredding Machine Tornado Potato Slicer Wavy Slice Equipment Carrot Slicer Multi-Function

Commercial Large Shredding Machine Tornado Potato Slicer Wavy Slice Equipment Carrot Slicer Multi-Function

$20,000.00

Electric Heating Pasteurization Tank – Horizontal Spray Type for Fresh Milk and Food Sterilization

Electric Heating Pasteurization Tank – Horizontal Spray Type for Fresh Milk and Food Sterilization

$11,211.00

[First Batch Deposit] Spring Cherry & Pear Snow - Original Lolita Ballet-Style Cake Dress Chinese JSK

[First Batch Deposit] Spring Cherry & Pear Snow - Original Lolita Ballet-Style Cake Dress Chinese JSK

$5.00

Bottled Water Electric Pump Bracket, Mineral and Pure Water Dispenser, Automatic Water Outlet Device

Bottled Water Electric Pump Bracket, Mineral and Pure Water Dispenser, Automatic Water Outlet Device

$383.98

Micro-Hyperbaric Oxygen Chamber - Rigid Sit/Lie Model for Home and Commercial Use, High-Altitude Oxygen Therapy Room

Micro-Hyperbaric Oxygen Chamber - Rigid Sit/Lie Model for Home and Commercial Use, High-Altitude Oxygen Therapy Room

$150.00

Stainless Steel Illuminated Hotel Room Number Plate, Smart Electronic Door Sign with Do Not Disturb and Make Up Room Bell

Stainless Steel Illuminated Hotel Room Number Plate, Smart Electronic Door Sign with Do Not Disturb and Make Up Room Bell

$10.00

Paper Blending Stump A1zdq001 - Large Art Sketch Highlighting Tool for Students

Paper Blending Stump A1zdq001 - Large Art Sketch Highlighting Tool for Students

$4.15

Continental Run-Flat Tires 225 235 245 255 265/45 50 55R17R18R19R20R21R22

Continental Run-Flat Tires 225 235 245 255 265/45 50 55R17R18R19R20R21R22

$350.00

3D Printing Pen for Children - 3D Stereoscopic Drawing Toy for Boys and Girls (Ages 6+)

3D Printing Pen for Children - 3D Stereoscopic Drawing Toy for Boys and Girls (Ages 6+)

$35.70

MOOCAT Loose-Leaf Refill – 300G Wood Pulp Fine-Texture Blank Paper for OC Binders A9/B5/M5/M6 Hand Drawing

MOOCAT Loose-Leaf Refill – 300G Wood Pulp Fine-Texture Blank Paper for OC Binders A9/B5/M5/M6 Hand Drawing

$12.90

Lanzhai Calligraphy Wool Felt Mat – Mini Arm Rest and Inkstone Pad with Creative Chinese Style Design for Painting and Writing

Lanzhai Calligraphy Wool Felt Mat – Mini Arm Rest and Inkstone Pad with Creative Chinese Style Design for Painting and Writing

$7.48

Qing Dynasty Calligrapher Lin Zexu Guangeti Small Regular Script: Buddha Speaks of the Infinite Life Sutra, Brush Tracing Practice Long Scroll Copybook

Qing Dynasty Calligrapher Lin Zexu Guangeti Small Regular Script: Buddha Speaks of the Infinite Life Sutra, Brush Tracing Practice Long Scroll Copybook

$8.80

Lightweight Ceramsite Bottom Padding, Professional Backfill for Sunken Bathroom Engineering and Construction, Large Granules

Lightweight Ceramsite Bottom Padding, Professional Backfill for Sunken Bathroom Engineering and Construction, Large Granules

$30.10

[In Stock] MINISO YOYO Wind-Chasing Diary Series Aromatherapy Figure Blind Box – Youyou-chan Ornament

[In Stock] MINISO YOYO Wind-Chasing Diary Series Aromatherapy Figure Blind Box – Youyou-chan Ornament

$49.00