Raspberry Pi Python GPIO button to mouse left click

Question

I have connected a button to the GPIO on my raspberry Pi and I have tested it; it works. I have used the following code:

import RPi.GPIO as GPIO

GPIO.setmode(GPIO.BOARD)
GPIO.setup(16,GPIO.IN)

finally:

GPIO.cleanup()

All I want is for that button to imitate a left mouse click. So that when it is pressed the pi thinks i have left clicked on the mouse.

Any help would be appreciated.

peyo · Accepted Answer · 2017-08-17 20:23:34Z

3

for mouse control, these posts can help you:

For GPIO manipulation, see this example on e-linux

You first need to monitor the state changes on the GPIO pin your button is wired to. (i.e. put it in a loop)

Then when it changes, call a function which role is to send a mouse click.
To do so, try using PyUserInput. (on the getting started part, there is an example doing a mouse click on the center of the screen).

edited Aug 17, 2017 at 20:23

answered Aug 17, 2017 at 18:48

peyo

4613 silver badges9 bronze badges

Sign up to request clarification or add additional context in comments.

7 Comments

James Novis Over a year ago

I have looked at both but none tell me how to make my push button register as a mouse click

peyo Over a year ago

well, you have to read (in a loop) your gpio state *the one with the button) and send a click through the post I've mentioned.

James Novis Over a year ago

sorry dude. I'm a newbie and kinda need someone to tell me how to do it rather than pointing me at other articles which really don't answer the question.

peyo Over a year ago

I just did tell you.. make a loop reading the GPIO state on youtrbutton. When it (the GPIO state) changes, use one of the way pointed in the linked stackoverflow questions above to simulate the click. I'm sorry but it's pretty straightforward, no?

James Novis Over a year ago

For you maybe but for me no.

|

James Novis · Accepted Answer · 2017-08-17 21:41:49Z

1

So I only needed my GPIO button on pin 16 to left click a mouse button on a certain area of the screen so that I could activate an app without the Pi connected with HDMI or to a wireless keyboard.

I installed pyuserinput then used the following code:

importRPI.GPIO as GPIO
import time

from pymouse import PyMouse
m = PyMouse()

GPIO.setmode(GPIO.BOARD)
GPIO.setup(16,GPIO.IN)

try:
   while True:
       if GPIO.input(16)!=0:m.click(300,275,1)
       time.sleep(0.2)

finally:
    GPIO.cleanup()

Through trial and error I found the right coordinates (300,275) and the 1 indicated left mouse click. I tried playing with the sleep settings to stop repeat registering of the inputted button. sleep 0.2 worked best.

answered Aug 17, 2017 at 21:41

James Novis

3436 silver badges16 bronze badges

1 Comment

peyo Over a year ago

To avoid the repetition problem, you can look for debounce. You can also have a record of the previous state, thus allowing you to do the mouse click only on GPIO state change.

Collectives™ on Stack Overflow

Raspberry Pi Python GPIO button to mouse left click

2 Answers 2

7 Comments

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

7 Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related