Hi, I'm making a project that involves a video being triggered when a person walks close by. I have filmed the video and have it saved on my Macbook (where I want it to play) and have got an Ultrasound sensor (HC-SR04) and Arduino Uno board. I was wondering if this was possible as I can't find any info on how to do this, as the majority of ultrasound projects are car parking sensors.
Thanks in advance.
Not all projects people want to create have a step-by-step instructable for it.
Everything you want to do, exists, in blocks.
Things you need to learn to do:
- Use the Sensor to detect an object (and perhaps if it is moving)
- Communicate over serial between the Mac and Uno
- Create a program or script on the Mac that executes whatever you need to do to play the video, when it receives a command over serial. (e.g. the "open" command) from a script.
I have managed to connect the ultrasound to the arduino uno and it is giving me serial readings... but i have no idea where to go from there. If you have any ideas that would be much appreciated, thanks!
Re-read #2 and #3.