ElectroSuite.com - 5×7 LED Display Driver LTP 747HR. The display has 7 row pins and 5 column pins. Each one of its 35 LEDs is connected across an intersection of a row pin and a column pin. So, a single LED can be lit by applying a positive voltage to its column and grounding its row.
ElectroSuite.com - 6 LED Chaser PIC 16F84.
ElectroSuite.com - 6V Ultra Bright LED Chaser. This is a spectacular but completely useless project. It lights Ultra-Bright LEDs in a sequence and each LED flashes brightly very briefly. (more…)
ElectroSuite.com – The Double 555 Traffic Light Schematic animation shows the lighting sequence and this follows the Australian-standard.
ElectroSuite.com – 555 Flashing Railroad Lights. This circuit flashes two red LEDs for a model railway crossing.
ElectroSuite.com – 1V5 LED FLASHER. This will flash a LED, using a single 1.5v cell. It may even flash a white LED even though this type of LED needs about 3.2v to 3.6v for operation. The circuit takes about 2mA but produces a very bright flash.
ElectroSuite.com – 7107 Led Display Digital Voltmeter. The circuit employs the ADC (Analogue to Digital Converter) IC CL7107 made by INTERSIL.
ElectroSuite.com – This 4017 7 Led Light Running Adjust Speed circuit can adjust the speed of the led light as needed. Makes this circuit can be used more versatile.
ElectroSuite.com – Driving 2 Color LED. Some 3-leaded LEDs produce red and green. This circuit alternately flashes a red/green bi-coloured LED.
ElectroSuite.com – 4001 NOR Gate SR Latch. The 4001 integrated circuit is a CMOS quad NOR gate, identical in input, output, and power supply pin assignments to the 4011 quad NAND gate.
ElectroSuite.com – 4011 Basic Gate Function. Create different logical functions by using NAND gates.