An oscilloscope is a laboratory instrument commonly used to display and analyze the waveform of electronic signals. In effect, the device draws a graph of the instantaneous signal voltage as a function of time.
A XY Plotter is an instrument to plot a voltage variable with respect to another voltage variable. This is in contrast to the oscilloscope which plots a voltage variable with respect to time.
This python library can turn your Raspberry Pi into an Oscilloscope or XY plotter. Simply, interface an Analog to Digital Converter with your Raspberry Pi and use the library to view the analog signals on your Raspberry Pi. Currently, the library supports Adafruit ADS1015 breakout board.
Featured Adafruit Product!
ADS1015 12-Bit ADC – 4 Channel with Programmable Gain Amplifier: For microcontrollers without an analog-to-digital converter or when you want a higher-precision ADC, the ADS1015 provides 12-bit precision at 3300 samples/second over I2C. The chip can be configured as 4 single-ended input channels, or two differential channels. As a nice bonus, it even includes a programmable gain amplifier, up to x16, to help boost up smaller single/differential signals to the full range. We like this ADC because it can run from 2V to 5V power/logic, can measure a large range of signals and its super easy to use. It is a great general purpose 12 bit converter. Read more.
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