This circuit is utilized to gradually light up and gradually dim a couple of red LEDs (light radiating diodes). The fading LEDs could be introduced as “eyes” in a little […]
1.5V LED Flasher Circuit
This LED flasher circuit requires only 1.5V to flash an LED lamp and therefore can be operated using a single 1.5V AAA cell. The upper circuit, shows utilizing a 100uF […]
Simplest Transistor Running Light Circuit for Christmas Lighting Decoration
This simple transistorized running light circuit can be used to produce sequential LED light chasing effect without using an IC. The drawing underneath represents a multistage light chaser utilizing just […]
40 LED Bicycle Light Circuit
A simple bicycle flashing light circuit using LED arrays is explained below, which will produce decorative, alternate flashing effect on the connected LEDs. The 555 circuit design below is a […]
Light Operated Relay Circuit
In this post you will learn about a very simple light activated relay circuit in which a relay is toggled On/OFF in response to the light or darkness using a […]
Theremin Circuit
Theremin circuit is a device which generates musical effects in response to the capacitive proximity of a human hand. This is the only musical instrument known to the writer that […]