Digital display for half wave detector with cubic spline interpolation – part 1 and following articles laid out the design concepts of a power meter display.
Whilst the preferred target was an Arduino Zero (SAMD21G) for its 32bit architecture, speed, and 12bit ADC, the code was developed to run on a Zero or a Arduino Nano (ATmega328P).
This article explores a trial of an external ADC module using an ADS1115 chip, 4 channels 16bit +/- ADC.
Above is the prototype, Arduino Nano on the left, the ADS1115 module is to the right of the display. Continue reading Digital display for half wave detector with cubic spline interpolation – part 3