2.8 - Press Gently¶
Micro Switch is also a 3-pin device, the sequence of the 3 pins are C (common pin), NO (normally open) and NC (normally closed) .
When the micro switch is not pressed, 1 (C) and 3 (NC) are connected together, when pressed 1 (C) and 2 (NO) are connected together.
Bill of Materials
In this project, we need the following components.
It’s definitely convenient to buy a whole kit, here’s the link:
Name |
ITEMS IN THIS KIT |
LINK |
---|---|---|
Kepler Kit |
450+ |
You can also buy them separately from the links below.
SN |
COMPONENT |
QUANTITY |
LINK |
---|---|---|---|
1 |
Raspberry Pi Pico W |
1 |
|
2 |
Micro USB Cable |
1 |
|
3 |
Breadboard |
1 |
|
4 |
Wires |
Several |
|
5 |
Resistor |
1(10KΩ) |
|
6 |
Capacitor |
1(104) |
|
7 |
Micro Switch |
1 |
Schematic
By default, GP14 is low and when pressed, GP14 is high.
The purpose of the 10K resistor is to keep the GP14 low during pressing.
The 104 ceramic capacitor is used here to eliminate jitter.
Wiring
Code
Note
You can open the file
2.8_press_gently.ino
under the path ofkepler-kit-main/arduino/2.8_press_gently
.Or copy this code into Arduino IDE.
For detailed tutorials, please refer to Open & Run Code Directly.
Or run this code directly in the Arduino Web Editor.
Don’t forget to select the Raspberry Pi Pico W board and the correct port before clicking the Upload button.
After the program runs, when you toggle the slide switch to the right, “The switch works!” will appear in the Serial Monitor.