Has anyone interfaced a 'axe with an Analog Devices digital pot? I want to make a Wein bridge oscillator. It requires 2 identical caps and 2 identical resistances for setting the resonant frequency. To make it tunable I can either use a dual gang variable cap that's as big as a house or a dual gang pot. An old school dual gang pot is very expensive. The 10 bit AD5235 looks perfect for this but it is an SPI device. I never SPI'd before.
On a side note, is a 20X2 capable of becoming a 1Hz to 100kHz frequency meter?
Thank you!
On a side note, is a 20X2 capable of becoming a 1Hz to 100kHz frequency meter?
Thank you!