In week 2, I try to plugin the arduino with the programming language. Keep print the reading from the sensor, whether analog or digital one, is useful to keep track with the state of the system.
Digital Input (with switch and LED)
Analog Input (with potentiometer and LED)
Find Sensor Range (FSR and LED)
Question:
- Why do we need to connect the 3.3 v pin on the nano instead of 5 v?
- Why is the digital pin 2 ?
- Why when add battery to a circuit the voltage increase in a series circuit while the current increase in a paralle circuit ?
- As mentioned in the reading, most machine designers think logically, while users often do not perform as expected. I wonder why such a mismatch would occur?