Infi-Zeal's Blog

Step 1: Gather all the necessary parts 1. QT113 - can be ordered at Digikey DigikeyDigikey. Each one costs around $2. 2. 10mF capacitor 3. Wires 4. LED 5. breadboard or perfboard (if you choose to perf, you will obviously need a soldering iron and some solder) Step 2: Build your circuit wire up your circuit according to the following diagram: pin 1: Power (3.3-5V) pin 2: Output (in this case I used a red LED) pin 3: Ground pin 4: Power pin 5: Power pin 6-7: 10 micro Farad capacitor. These pins also connect to the input wire. pin 8: Ground Step 3: Input wire Strip the tip of the wire and embed it into or behind an object or the surface which you want to act as a touch switch. when connected to a conductive metal sheet, or mesh this works really well. When doing multiple switches, it is important to make sure the surfaces are surrounded by ground, so as to protect each distinct touch surface. Step 4: Connect to a microcontroller In this case I u...

Google just released a new Project Soli, a interaction sensor that uses radar technology. Simple gestures like pinching your index finger and thumb together, or rubing them together at different speeds can now control a device with surprising accuracy. It really looks like magic. Unlike gesture control tech that came before (which mainly relied on fairly clunky video sensors) the sensor used in Soli can track sub-millimeter motions at the speedy rate of 10,000 frames per second and with exceptional accuracy. Not only that, but it fits onto a fingertip sized chip and can be used in everyday devices like smart watches (which due to their size have posed major challenges in designing touch-based interfaces).      INFIZEAL TECHNOLOGIES                                 Using radar is a “fundame...