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.
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
TIP: Use glue to insulate and protect conductive thread knots.
Step 5: Batery Holder
Step 6: Make It Wearable
Step 7: Uploade the Software
Update destinationLat and destinationLon to the location you want to find and upload it to your Lilypad.