PCF8591 Programming Part 3 - TDD (Test Driven Development) Do DAC first, and later quad DAC + ADC
Design notes
My original plan was to use both ADC and DAC of pcf8591. On second thought I think I should first try DAC to output the sweep DC power voltage to tunnel diode, and use scope to display the wave form.
But I have no idea if I should use the scope to check the 1k resistor to get the ampere data.
Anyway, I think I will first try to repeatedly send a sweep voltage, say 0V to 10mV and see if ampere It increases.
Bed time. Will carry on tomorrow.
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