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Button Twin Pack


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The Button Twin Pack consists of two Raspberry Squid Buttons and a Raspberry Leaf GPIO template.

[Note: Switch and lead colors may vary]

Each Button is in fact a momentary action push switch with trailing leads that end in female header sockets that will fit over GPIO pins on a Raspberry Pi, Node MCU or Particle Photon. To reduce the chance of accidental short-circuits when using the Button, each Button has a built-in 470Ω resistor that does not affect the switching action when connected to a GPIO input, but does mean that if the switch is accidentally connected across power connections your Raspberry Pi will not come to any harm.

Getting Started

  1. Start by putting your Raspberry Leaf GPIO template supplied over the GPIO connector like this:

2. Attach one of the buttons as shown below, with one lead connected to GND and the other to GPIO25.

3. Now you can try out the Button using a little Python program. So, open an LX Terminal window and then run the command below (no need to type the $ sign):

$ nano

When the editor has opened, paste the following code into it:

import RPi.GPIO as GPIO
import time


GPIO.setup(25, GPIO.IN, pull_up_down=GPIO.PUD_UP)

while True:
    input_state = GPIO.input(25)
    if input_state == False:
        print('Button Pressed')

Save the file by pressing CTRL-x and then Y and ENTER to confirm.

You can now run the program using the command:

$ python

Now, every time you press the button, you will see the message “Button Pressed”.


To make it easier to use the Button, and to ‘debounce’ it, you can use the Squid library.

If you want to learn a while lot more about Raspberry Pi and digital inputs, you might be interested in one of Simon’s books on the subject. Especially The Raspberry Pi Cookbook and Programming Raspberry Pi.

The Squid Button is actually great for making a ON switch for the Raspberry Pi 2 or 3. You can find instructions for doing this here.

Related Products

We also sell a Combo Kit that includes two Buttons and an RGB LED.