Voltage Tracker, slow-timebase measurements on your oscilloscope using an Arduino shield
December 12, 2016 | 12:00
Arduino Mega board expands tracking time of an oscilloscope to a maximum of 12 hours, for example to display the (dis)charging curve of a battery.
Suppose you want to measure a slowly-varying voltage from a sensor, or perhaps plot the discharge curve of a battery. Is it really necessary to sit there and note down a reading from the multimeter every so many seconds or minutes? It is less tedious and much more elegant to use this Arduino-based unit connected to your oscilloscope.
Two questions motivated the author at the beginning of his project: ‘is my battery any good?’ and ‘is this charger charging my battery correctly?’.
The Voltage Tracker Project on Elektor LABS
or in Elektor Magazine
(for Elektor Members only).
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