External Triggers for App Inventor Apps

Hello everyone,

I was wondering what's the most easiest way to use an external trigger (e.g. a single button on a USB cable would do the trick for me) within app inventor.

So far I using a workaround, where I use the proximity sensor of my phone to be able to use it as a switch whenever I put something above it. Some other sensors could be used to trigger an event aswell, but all of them are internal.

I'm just looking for a way to implement an external input signal. Maybe there are ready made components (e.g. headphones with a button) that will work for me. It would be nice to avoid using an arduino and communicate via USB serial.

Many thanks!
Julian

2 Likes

some years ago there was the Amazon Dash button available which could be modified to trigger something...
https://www.digikey.com/en/maker/blogs/2017/amazon-dash-hack-connecting-to-your-ifttt-account
probably there exists something similar nowadays...

Taifun


Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by icon24 Taifun.

Hi,

thanks for your advice! I'll check it out and have a look if there is still something like this out there.

Julian