GPS Clock

thingiverse

Learn how to create an ultra-accurate Arduino GPS clock with a basic description and code here: learn.adafruit.com/arduino-clock/software?view=all. I took this project and expanded it by adding a charger, Lipo battery, on/off switch, and a touch toggle switch. The display is bright enough to be seen through the printed enclosure, so have fun experimenting with different colors for the outer shell. Sand the contact areas on the inner part so that the shell slides smoothly over it. I printed this in PETG for precise dimensions but PLA should work just fine. The shell prints without support and adds a brim for better adhesion. Powering on/off is connected to GND and EN on the powerboost board. The toggle switch turns on the Metro mini and display together. Simply turning on/off the display doesn't work, but both come on immediately anyway. GPS remains powered as long as the Power boost charger is active. I added a Lipo battery so I can carry this around, as finding a GPS signal inside the house can be challenging at times. The display seems to draw a significant amount of current, so the lipo lasts about 36 to 48 hours on a full charge. I had an antenna cable lying around, but it appears not to be necessary. Adafruit products used: * Adafruit 0.56" 4-Digit 7-Segment Display w/I2C * Adafruit Metro Mini 328 * Adafruit Ultimate GPS Breakout * PowerBoost 1000 Charger * Standalone Toggle Capacitive Touch Sensor Breakout - AT42QT1012 * Lithium Ion Cylindrical Battery - 3.7v 2200mAh * 5.85x8mm Latching Type Miniature DPDT PushButton Switch - Flat Head