How to Wire a Pressure Sensor to Arduino: Difference between revisions
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*Read about pin function as input or output on Arduino - [https://www.arduino.cc/en/Tutorial/DigitalPins] | *Read about pin function as input or output on Arduino - [https://www.arduino.cc/en/Tutorial/DigitalPins] | ||
:*We can avoid external resistors because Arduino contains pullup resistors that can be activated in software | :*We can avoid external resistors because Arduino contains pullup resistors that can be activated in software | ||
'''Summary:''' Save yourself the complexity of extra parts by avoiding extra resistors, because you can use ones that are inside the Arduino already. | |||
Revision as of 03:43, 11 January 2019
- First, see how to program a button - [1]
- Connecting a button involves connecting one wire to 5V from one of the Arduino pins, and connecting the other wire to the Arduino pin that does the reading. We also need a resistor to ground - so that when the putton is not presssed, the pin is pulled down to 0.
- Read about pin function as input or output on Arduino - [2]
- We can avoid external resistors because Arduino contains pullup resistors that can be activated in software
Summary: Save yourself the complexity of extra parts by avoiding extra resistors, because you can use ones that are inside the Arduino already.