LED Circuits - Fun to play with LED
- "Mini-Beacon" miniature programmable LED Flasher that is based around a PIC12F629 microcontroller
- "Peggy" - A Light Emitting Pegboard Display
- 1.5V LED flasher A (PDF)
- 1.5V LED flasher B (PDF)
- 10, 8 And 6 Step LED Circuits (CD4017)
- 12 Volt Knight Rider LED display
- 13 Color LED Rainbow
- 13 Color LED Rainbow
- 18 LED dimmable LED lamp
- 3V LED chaser using 4017
- 60 LED Clock
- 6V ultra-bright LED chaser using 74HC4017
- 7 Segment LED Counter
- 7 Segment LED Counter
- A "persistence of vision display" (POV display) using LEDs
- Adjustable flashing LED
- Assorted LED circuits
- AVR Color Clock using RGB LEDs
- Bedazzler: Do-it-yourself Handheld LED-Incapacitator (non-lethal weapon)
- Bicycle LED POV (persistence of vision display) LED display
- Bicycle rear flashing LED light
- Big 7-segment LED display board with SPI interface
- Christmas Star
- Christmas tree
- Color fade
- Colour Shifting For Bi-Colour LED's
- Current Regulators For Light Emitting Diodes
- Dancing LEDs
- Digital Up / Down Counter with 7-segment display
- Discrete LED Color Organ
- Driving led display matrix from a PIC micro
- Fading LEDs
- Fantastic Atom Expander
- Flashing LED advertising badge (PDF)
- Flashing LED advertising badge (PDF)
- Fun with LEDs - a variety of LED flahser projects
- Giant T-shaped LED matrix display board for financial applications containing 275 8x8 LED modules
- Heart of LEDs
- High Current Pulsed LED
- High Efficiency 12V White LED Driver
- High power LED driver using LTC3780
- Incandescent LED Circuit
- Kitt car scanning LED sequencer
- Knight rider scanning LED lights
- LED Audio VU Meter
- LED Chaser
- LED chaser
- LED Chaser using 4011 / 4017 CMOS chips
- LED color fade
- LED dimmer circuit
- Led display digital Voltmeter
- LED flasher using 4584 hex inverting Schmitt trigger
- LED flasher with "Rising and Falling" Brightness
- LED Mood Light
- LED Mood Light
- LED Running Message Display using CD4017 with transistor drivers rather than a CPU
- LED Thermometer
- LED Voltage Indicator Board
- LEDMATRIX, a 80x32 pixel DIY LED matrix display
- Little bike light using LEDs
- LM3909 replacement using discrete components
- Low battery voltage flasher (PDF)
- Low current LED flasher (PDF)
- Making an Amplified Color Sensor from an LED and an Op Amp
- Notes on using LEDs and various LED driver circuit diagrams
- Persistence of Vision Display for Bikes
- Pocket Ignignokt LED display
- PointLess LED Array - A 8 by 8 array displays something using POV
- POV Persistence Of Vision 2 x 32 LED display
- Pulsed LED test circuit (PDF)
- Regulated Dual White LED Lamp
- Robot beacon light display for mounting on top of a robot
- Running Message Display
- SAA1064 display module project
- Schematic and breadboard layout for reversed LED color sensor using an opamp
- Scrolling LED sign based on Atmel ATtiny2313 AVR microcontrolle
- Selecting of LED projects including a flashing Christmas tree
- Sequential flashing arrow circuit using a 4017, also includes a PCB layout
- Seven Component Regulated LED Lamp
- Seven Component Regulated LED Lamp
- Simplest LED Flasher Circuit using a 2N2222 transistor Simplest LED Flasher Circuit led
- Single and Two Cell White LED Drivers Without Inductors
- Single cell LED flasher with two-year battery life (LM3909 replacement)
- Sky writer - displays 'in air' messages and features inertia switch
- Tiny micro-controller driven lightshow using LEDs and a Picaxe 18A (PDF)
- Using Common Cathode Or Anode LEDs As Bipolar LEDs
- Various LED flashers
- Various LM555 LED Blinker Circuits
- White LED circuits
- White LED Drive Circuit