Circuit Board Assembly

Jar of Fireflies using AVR ATTiny45 Microcontroller

This project uses green surface-mount LED’s along with an AVR ATTiny45 microcontroller to simulate the behavior of fireflies in a jar. https://youtu.be/UeL0LC2IgpQ (note: the firefly behavior in this video has been greatly sped up in order to be easier to represent in a short film. The default behavior has significantly more variance in its brightness and delay

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LED Matchstick

Fire-free LED Matchstick Using a Tiny13 microcontroller

video Fire-free LED Matchstick I just completed a new project: a fire-free and fire-safe LED matchstick. To light this matchstick you strike it against a normal matchbox filled with neodymium magnets. The LED matchstick has an inductive sensor that detects the magnetic field as you strike the matchstick against the matchbox and it lights up a LED in a

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Prototyping (1)

Annoying Beeper using Microcontroller ATtiny13

Play a prank on your friends (enemies?) by hiding a high-pitched beeper which sounds off at random time intervals. This instructable uses minimal parts. All that is required is: battery microcontroller speaker Why don’t I just use a 555 timer chip? You certainly could. I like this method because: 1. The ability to beep at random intervals 2.

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GuGaplexed Valentine1 (1)

GuGaplexed Valentine LED Heart using ATTiny13V Microcontroller

GuGaplexing is a new LED display multiplexing technique. Compared to Charlieplexing, GuGaplexing allows you to control twice as many LEDs, with just a few additional components. GuGaplexed Valentine LED Heart project has 40 LEDs arranged in an ‘Arrow Piercing a Heart” arrangement using only 5 pins of a microcontroller. The project uses an AVR ATTiny13V Microcontroller. All the 6 I/O pins

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