There are quite a few geiger counter instructables. The difference with this one is that I wanted to give it a modern interface, similar to smart phone touch screens, that anyone would feel comfortable using. The reason for this is that I want to use it as an educational tool to teach kids (and interested adults!) about […]
Geiger Counter with Touch Interface! Continue Reading
Did you know? You can make pencil drawings reactive to touch for use with your projects! It’s really easy, and gives you a lot of flexibility in making interfaces for whatever microcontroller project you’re making. I put this together as part of my UnoJoy project, where we’re using the Arduino as a platform from which
Turn a pencil drawing into a capacitive sensor for Arduino Continue Reading
The MQ-3 is an alcohol gas sensor that is available for about $5 from Sparkfun, Seeed Studio, and others. It’s easy to use and has sparked the imagination of anyone who has dreamed of building their own breathalyzer device for measuring the amount of alcohol in the human body. I got an MQ-3 sensor a
Arduino Breathalyzer: Calibrating the MQ-3 Alcohol Sensor Continue Reading
Tyree (he wears a tie and he has tires) actually smiles after he bumps into something (see video). Using an Arduino motor shield, he detects obstacles using the “more current into the motor means something is in the way” principle. Tyree started out as a sketch and morphed into a real object thanks to Autodesk’s
Sensor Less 3d Printed Robot Continue Reading
ArduSensors are open source plug-in-play sensors for Arduino. These were originally made for beginners to get started with Arduino, a very cool electronics prototyping platform, but anyone can use them. I still play around with them all of the time, and I bet a ton of people that are experienced with electronics still love them.
ArduSensor Fun Pack Plug-In-Play Sensors For Arduino Continue Reading
Update: New interface – look at the last step. Credits: Arduino sensing done by DZL, Processing sketch and Instructable done by Mads Hobye. Disney Research lab designed a novel way to detect touch. You can see a video of their demo here: I had the honor to meet them at CHI2012 in Texas and I discussed with them
Touche for Arduino: Advanced touch sensing Continue Reading
Throwies are great. They have a minimal parts count – 2 or 3 depending on whether you use a magnet – and produce a great effect. They are very cheap and easy but not highly efficient: 1) They are on all the time, so on average they waste half of their energy shining during the
Throwduino Basic – Light-Sensing Flashing Throwie Continue Reading
The next board I want to show you is the ADJD-S371 Color Light Sensor Evaluation Board from sparkfun. It emits light and analyses the reflected color spectrum. The board can be controlled via I2C. The sleep and xclk pins were not used in this example. I found a really nice tutorial describing how to connect
RGB Color Sensor on Arduino Continue Reading
I’ve had a cuecat barcode scanner sitting around for over 10 years. Basically it connects to a PS2 port (apparently there is a USB version) like a keyboard and spits out a barcode when scanned. Nice!. The annoying thing is that it is “encrypted”. What I set out to do is; – unencrypt the barcode
Arduino and CueCat barcode scanner Continue Reading
Once you’re getting some values from sensors, for example using Arduino, (see my previous instructable), sometimes it’s nice to see the sensor data in a graph. Here’s how in only a few steps! I made this particular Instructables using a sonar sensor (XL Max Sonar EZ/AE) but you can do it with any data values
Visualize data from sensors using Arduino + coolterm Continue Reading
