The rest of the badge is just a small solderless breadboard, a 74HC4060 chip, seven LEDs, two resistors, a cap and a photoresistor, and a CR2032 battery.

Sometimes the most useful hacks are also the simplest ones. A case in point is the LED and resistor assembly that [Skippy] recently posted on his blog. The idea is to solder up some pre-made indica… ...

• 100R Resistor: A 100-ohm resistor used to limit current and protect components like LEDs and the display. • Buzzer: An audio signaling device that produces sound when activated by an electrical ...

The breadboard simulator program has resistor place and remove function. User can place and remove resistors horizontally but not vertically. When input the resistors you have a starting point of x ...

8-pin DIY logic probe. JOE FARR As we see in the right-hand portion of this image, the pins on one side of the bar graph display are soldered to a row of header pins that will be used to plug into the ...