8/29/2023 0 Comments Arduino serial plotter![]() It’s not often that something works this well on the first try, and I thought I would post about using the combination as a kind of ‘poor mans oscilloscope’. I recently picked up a ADS1115 breakout board, and it was fairly easy to use that with the serial data plotting capability of the Arduino IDE. Differential readings are also useful for sensor applications that use a wheatstone bridge arrangement. Since the second logger is ‘floating’ with no connection to the UNO’s ground line, the voltage drop across the 5Ω shunt resistor is recorded using a differential channel on the ADS1115. Here, I’m using the basic UNO Logger as a tethered Data AcQuisition device, recording the current used by a second data logger.
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