On Fridays Adafruit has some hardware fun. This week the top of an old pager was cracked open. There is a radio receiver inside that is constantly listening to the frequency that the pager is on. It is demonstrated that there is serial data that can be seen leaving the radio receiver chip. On an upcoming hack the data will be fed into a computer and the stream of
Keeping track of paper receipts is a pain. I have lost a few here and there and later needed them to get warranty work done. Some stores are starting to offer receipt re-printing based on your credit card number but you would still need to go back to the store and wait in line for the re-print. It would be great if all your receipts were automatically stored in
The Halluc II looks like a kids toy on steroids! It not only rolls around on its wheels but it can also use the wheels like feet and walk. When it comes up to an obstacle that is too tall for the wheels it can lift the wheels to match the raised surface elevation.
The original intent of this project was to make a MIDI device that would scan in low resolution images on paper and play them as music. Turns out that even though it is only using a handful of LDRs (photo resistors) is makes for a pretty good image scanner also. "It uses LDRs to measure the gray-scale of specific point of a image, and triggers midi notes from a
Daniel Eindhoven sent in his latest creation, this is one killer looking coil gun! The laser effects are fantastic. 🙂 If you love coil guns make sure you have a look at our top 5 coil gun list. "Fully semi-automatic, up to 14 shots. Capable of delivering over 18J kinetic energy, and speeds up to 110km/h! (42 gram projectiles). It’s a single stage gun, using a 8800uF(4×2200) capacitor bank
This Acoustic Gesture Recognition by Gary Halajian and John Wang from the Cornell University Designing with Microcontrollers course reminds me of the Object Scratching Input Device that Chris Harrison made (I later read the references and see that sure enough they reference the Object Scratching Input Device Project). "Our project utilizes a microphone placed in a stethoscope to recognize various gestures when a fingernail is dragged over a surface.
Inspired by Erik’s creations, Daniele Benedettelli put together this very elaborate drawing robot. You basically import a picture that you want the machine to draw. Manipulate the image to make the image simpler and let the robot loose to draw it. I can’t wait until my daughter starts asking for one of these LEGO Mindstorm NXT kits. It will be lots of fun for me her.
