The app can also set challenges for you to conquer throughout the day. Through the app, you can elect to share your progress with others via the Jawbone UP site, or keep it all to yourself. When finished, you can pair your UP with the iPhone and the app combines data gathered by the motion sensor in the UP and the GPS receiver in the iPhone. When going for a jog outside, you can set your app to use the iPhone's GPS receiver to track your position during an activity. For example, the iPhone has a GPS receiver inside it. The app also lets you pair your device's abilities with the UP. The app accepts the data and translates it into a form that's easy to understand such as how many steps you've taken or calories you've burned. With the Jawbone UP, data travels from the sensor to the TRS plug into your device. The speakers convert the data from electricity into sound. When you plug in your headphones, data from your device travels through the plug up the wire to the speakers in your headphones. The sensor analyzes the data and converts it into information useful to you, including how many steps you've taken and an estimation of the number of calories you've burned.ĭata can travel in either direction along a TRS plug. The sensor registers this as movement.Īs you move over time, the weight continues to shift, causing more changes in the capacitance of the plates in the sensor. The other plate experiences a decrease in capacitance. As the weight draws closer to one plate, its capacitance increases. But in motion, forces act on the weight, which will move toward one plate and away from another. When the entire sensor is still, the weight rests between the two plates. In between the plates is a weight suspended between them. The outer layers are capacitance plates carrying an electric charge. Motion sensors detect these changes through tiny electromechanical elements.Ī basic solid-state accelerometer looks like a sandwich. If an objection in motion experiences a change in either speed or direction, it has a change in acceleration. Acceleration has two components: speed and direction. The motion sensor detects changes in acceleration.