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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

Basic Experimenter Board for easy prototyping of electronic circuits

Posted on January 27, 2015 by R-B 7 comments

Most electronics projects require some common stuff like regulated power supply, input tact switches, and output LEDs during prototyping and testing phase. Wiring these things on a breadboard for every new project could be time consuming and boring. We introduce you the Basic Experimenter Board, a general purpose develoment tool that will not only reduce the prototyping time for your next project but also free up plenty of space on the breadboard. It features regulated 3.3V and 5.0V power supply on board along with four output LEDs, four input tact switches, one output buzzer with driver circuit, a potentiometer for simulating

Open-source ARM Pro Mini

Posted on January 20, 2015 by R-B One comment

Zapta has shared the design files on github for his ARM PRO MINI, which is an open source ARM M0 microcontroller development board that could be handy for quick prototyping and as a starting point for your own ARM based custom designs. Highlights Prototyping friendly. Compatible with standard soldieries breadboards and can be soldered to a standard 0.1” proto board. Straight forward barebone design. Customize for your own PCB design by selecting the portions of the circuit you need. Single package install of the free and fully feature IDE (NXP Eclipse/LPCXpresso). Zero software installation when using with the mbed.org online

Arduino calculator box

Posted on January 20, 2015 by R-B Leave a comment

Kale_3D has posted this instructable about his build of an Arduino-based calculator with a laser cut wooden enclosure. In this Instructable I will show you how to make an Arduino calculator that is just as good as any other calculator (well… sort of). Even though it’s probably not practical due to it’s size, repetitive use of the equals button (due to the lack of keys), and cost (You can probably buy a calculator that does the same thing for $2), It is really fun and adds a few skills to your inventory. Let me tell you how I got started

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.

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