Group Assignment task: Probe an input device(s)'s analog and digital signals
As group, when working on this assignment we probed a moisture sensor as the input device and then we measured its output voltage by using multimeter and visualized its signal on oscilloscope in two diferent simples
Image above shows measured voltage on multimeter from moisture sensor pined into the wet soil.The signal of that voltage is the one that is applied on the input of microcontroller
The following image shows the signal on oscilloscope. The signal from sensor that is pined into soil is probed on oscilloscope
Down is the output reading from serial monitor
Above image shows the output from the serial monitor of arduino
After the wet soil, we also measured the signal from the moisture sensor when pined in dry material:
You can see that as as the content of water within material is low, there is low percentage of moisture(the content of water is low) but the voltage or the amplitude of the signal is high
Y
