This is a quad output variable frequency oscillator. It is based on the Adafruit Si5351A Clock Generator Breakout Board. The fourth output is a simple PWM pin driven by the TimerOne library. The whole thing is controlled by an Adruino (ATmega328).
- 8KHz to 160MHz
- 8KHz to 160MHz
- 8KHz to 160MHz
- 0 to 10KHz
- Short press on the big button cycles through the outputs
- Long press on the big button enables/disables the current output
- Turning the knob will increase/decrease the value of the current output
- Short press of the knob will cycle through the positions of the current output
- Long press of the knob will zero out the current position of the current output
- Pressing the small button will save the current settings (in the eeprom)
- If nothing is pressed for 10 minutes, a screensaver will appear
- Jason Milldrum's Etherkit Si5351 library: https://github.com/etherkit/Si5351Arduino
- TimerOne library: http://playground.arduino.cc/Code/Timer1
- Oliver Kraus' u8g library: https://github.com/olikraus/u8glib
- Thomas O Fredericks' Bounce2 library: https://github.com/thomasfredericks/Bounce2
Assembled:
Breadboard:
