deskthority

Thank you all a lot. Actually I finally managed to build a working one. What I did was coupling the touch shield to a USB Teensy 3.0 and use the teensyduino libraries and it worked like a charm. The keys responded very well as I expected them to.
The next challenge for me now is to simulate the ...

Thank you for your advices Will do that

Hello,

I've just got a Teensy 2.0 and a keypad PCB that outputs I2C. Since I2C only uses 2 pins (SCL1 and SDA1) and of course 5V+ground, I was wondering whether I had to wire (or ground?) all the other Teensy pins also. Or can I leave them unwired?
Thank you in advance.

Hello everybody,

I was planning on building my own keypad, since nothing I found suits my needs. Here is my "problem":
- I like playing some flash games that requires "mashing" 3 or 4 same keys. After 15 minutes, my wrist and fingers generally hurt. So I thought about making a small USB capacitive ...