Osciclock

Old Oscilloscopes want to live forever!! To do so, here is the oscilloscope clock.

Students are killers! After the painful death op three raspis I decided to design a short circuit resistant buffer board. A little googling pointed to this page from brian dorey. The mentioned TXS0108E sounded interesting and the design was straightforward.

Features: - capacitive power supply to reduce electric smog - big and efficient 1.2" 4-digit 7-segment display (I2C) - Teensy 3.1 board with 12 Bit DAC (SD-card wav player) and internal RTC - efficient I2C class D amplifier (89% efficient with 8Ω speaker at 1.5 Watt) - DCF77 receiver - two rotary Encoder with switch for easy and intuitive control - state machine programmed with arduino (teens

A much simpler way than the the Raspi's Pin Header for connection is USB. Connect an Atmel AVR-USB Controller with your Raspi. This is simplified by the small USB library in bascom, c and assembler for AVR-USB-controller!You had 4 excuses for not using USB in your project!1. Too complicated!Not true if you use this small library.