The code switches the LEDs on and off randomly for a flickering effect and is based on this instructable. ... My whole circuit is 2 resistors, 2 LEDs, the phototransistor and the ATTINY45.

This is a simple flashing led circuit with 2 leds and 2 NPN transistors. It illustrates the behavior of transistors and capacitors and if you use an. Aspencore network. News & Analytics ... The switch ...

A poor-quality LED bulb isn't the only thing that can cause the glow. If you're using switches with motion sensors or timers, the LED bulb may draw power from their circuits and emit a faint glow.

A switch is a device that opens or closes circuits. When a switch is in the 'off' position, ... The other is called a 'parallel circuit'. The two LEDs in this picture are connected in SERIES.