Sorry in advance if this question already exists--I tried to search but my keyword knowledge is shaky. I have created a Colpitts oscillator on breadboard using AA batteries as the power supplies. I want to implement this oscillator with an Arduino. (Once it's set up, I want to use its voltage to do some things, but that isn't part of this question.)
In the image below, I have two voltages, Vcc (positive voltage) and Vee (negative voltage). My simulations indicate I can run the oscillator either with a dual voltage (+5V and -5V), or with one negative voltage (-5V) and the other set to ground. Either provides a 100 kHz oscillation from about -5 to 2 V. So:
- Is there a way to provide a dual voltage supply from the Arduino Uno?
- Is there a way to provide a single negative voltage supply from the Arduino Uno?