In this instructable we’ll make a smart backpack that can track our position, speed and has automated lights that can keep us safe at night.
I use 2 sensors to detect if it’s on your shoulders to make sure it doesn’t go off when it doesn’t have to, a pull detector(that i made myself) to see if the straps are pulled and an ultrasonic sensor that detects if something is close to it’s backside. At least i also use an LDR to see if it’s dark or light.
There are also leds inside that light up when you open the backpack to light the inside. It is triggered by the reed switch that switches with the magnetic field produced by the magnets.
The GPS module is used for tracking your position.
LCD module is used to display the ip address.
I made a site that you can upload to your raspberry pi that lets you see the routes you took, save them for later use, and control some settings.
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