In this Raspberry Pi pressure pad tutorial, I will go through the steps of connecting a pressure pad to the Pi.
There are many uses for using a pressure pad such as detecting when someone sits down or places pressure on a specific part of an object. It is a pretty great sensor to make use of in IoT projects and more.
In this tutorial we only go through the steps of hooking the pad, so you can detect if enough pressure has been applied or not. We will also go through methods to receive variable values by using a capacitor or an analog to digital converter (ADC).
The second design in this tutorial makes use of a capacitor just like in the LDR tutorial. Using this method we can measure the resistance of the pressure pad. If there is no pressure, we will get almost no values. As soon as we apply some pressure, we will get values varying from high as 100,000+ right down to 5,000.
The third design that I make use of in this tutorial uses an ADC. Just like the capacitor by using an ADC, we will be able to get variable values from the pressure pad. Perfect if you’re programming something that does something at different pressure points.
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