The Find home detector is a device to show me the way home by indicating the direction with a light. It uses a LilyPad, GPS, compass and some LEDs. Using the GPS to get a position and then calculate the direction to the location of my home. The compass is then used to get my heading so it is possible to indicate the direction I should travel.
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Step 1: Parts Needed
Compass Module with Tilt Compensation
7 x LEDs to indicate direction
Battery holder (4 x AAA)
2 x Magnetic Snap or similar to attach the battery holder for easy removable
4 x Magnetic Snap or buttons
Step 2: Software Needed
TinyGPS by Mikal Hart
NewSoftSerial by Mikal Hart
Wire for I2C communication with the compass
Step 3: Layout
Step 4: Sewing the Circuit
Start with the Lilipad and then the component closest GPS, compas and last the leds
TIP: Use glue to insulate and protect conductive thread knots.
Step 5: Batery Holder
Attach the Magnetic Snap to the bottom of the battery holder and to the fabric.
Step 6: Make It Wearable
Attach the Magnetic Snap or buttons alongside the side of the cloth.
Step 7: Uploade the Software
Download the sketch from http://github.com/evilmachina/Find-home-detector or use the attached pde file.
Update destinationLat and destinationLon to the location you want to find and upload it to your Lilypad.
Step 8: Find Your Way Home