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Rangefinder for Garage Parking With Arduino

“This simple project will help you park your car in the garage by displaying the distance from objects in front of your car’s bumper. A ‘Stop’ message will tell you when it’s time to stop. The project is …

Reprogramming Blinky kits with ICSP programming

“The Blinky kits each contain a microcontroller, which is a type of reprogrammable computer chip that can loaded with new code whenever you want. The chip used in each Blinky kit is the PIC16F1823 (PDF datasheet), a general-purpose 8-bit microcontroller …

Simple Arduino Home Energy Meter

“I was walking through the hardware store the other day and I walked past an energy meter which clips onto your home’s electricity mains and then provides you with information on your power consumption and cost estimates for the …

SMD 555 Timer Piano!

“Hello everybody! In this instructable I’m going to show you how to make a little piano using the common Timer 555 but with SMD components! SMD means Surface-Mount Device and those components are mounted or placed directly onto the …

Sound Signal Generator

“So this is a sound signal generator, it is capable of generating sounds with frequencies from 100hz all the way to 3000hz. There are 2 modes on the sound generator, the first mode(Mode1) plays a scale from 100hz to …

Spectrum Analyser Code

“Code for a spectrum analyzer. The code is to be ported to an ATTiny85 to make a project. Uses Goertzel’s algorithm with a Hamming window.”

Tiny Lisp Computer 2

“My aim in designing the first Tiny Lisp Computer was to create the smallest practical self-contained computer, with its own display and keyboard, that you could use to program in Lisp. This second version extends the original Tiny Lisp Computer …

4 Bit TTL CPU

“I saw this really good looking 4k x 4 bit RAM chip that had to be put to good use. The project is to design a usable 4 bit TTL CPU that uses the RAM chip. Can a 4 bit …

Another webcam microscope

“Microscope from HAMA AC-150 webcam.”

Arduino + AD9850 30MHZ DDS Signal Generator In 12$

“An Precession Signal generator is very easy and affordable make using an arduino and dds synthesizer (ad9850) . Its World’s first smallest portable signal generator build. You can make decent 0 -30 MHZ frequency Signal generator only in 12$ . If …