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Category Archives: Arduino

Tsunami: Arduino-based Signal Generator

Posted on March 18, 2015 by R-B Leave a comment

Nick Johnson from Arachnid Labs has designed a powerful and affordable signal generator (named Tsunami) based on the Arduino platform, and is now running a Kickstarter for making it available to electronics hobbyists worldwide. The Tsunami is a powerful and flexible signal generator built on the Arduino platform. It’s the best way to get started experimenting with analog signals, and a great tool for a huge variety of tasks, too. The tsunami takes the versatile processor behind the Arduino Leonardo, and combines it with a Direct Digital Synthesis chip, which makes generating analog signals incredibly straightforward. It also has flexible input and

Making an audio treasure hunt box

Posted on February 1, 2015 by R-B Leave a comment

Treasure hunts are a great adventure to play inside or outside of house. Jasen Smith’s audio treasure hunt box project is a unique variation of this game, where the treasure hunters are given a code to enter into the box, and the box plays a short audio clip containing a clue as to where to look for next. As they arrive at this location, they get a new code, which has to be entered into the box again to get next clue. This continues until the treasure is found. The wave shield connects to the Arduino board with header pins on

Arduino binary clock with seven segment LED displays

Posted on January 12, 2015 by R-B One comment

Brett Oliver’s latest version of Arduino-controlled binary LED clock uses a 4×20 character LCD and three MAX7219-based serial 8-digit seven segment displays to show time and date, which is synchronized to the DCF77 time code transmitter in Germany. The display brightness is auto adjusted to room level using a photoresistor as ambient light sensor. Brett also implemented a PIR sensor for motion detection that will automatically shut down the main 7 segment display and LCD display when there is no body to watch the clock.

Arduino sound direction locator

Posted on January 9, 2015 by R-B Leave a comment

This Arduino-based sound direction locator uses a Pac-Man like ghost that runs towards the direction of the origin of sound. It uses three microphones amplifier modules arranged in a triangle to locate the direction of the sound and an 8×8 LED grid display for output. The Arduino Uno senses the incoming audio levels from the three microphones and moves the ghost in the direction with the loudest sound detected by turning on the appropriate LEDs on the grid. Check out this video showing it in action.

Portable multifunctional tool with Nokia 3310 casing

Posted on January 7, 2015 by R-B Leave a comment

Mastro Gippo’s 1337 3310 multifunctional portable tool is hacker’s Swiss knife in the shell of Nokia’s most durable and iconic 3310 phone and is also the winner of Hackaday’s Trinket Everyday Carry Contest. It features ohmmeter, graphing multimeter with simultaneous measurements of current and voltage, as well as instantaneous and average power consumption measurements that help to estimate the battery life of your prototypic design. He also maintained the original look and feel of Nokia 3310 by developing the similar user interface for his tool. The continuity tester feature plays the original Nokia tune as output.

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