Design BT 4 LE sensor device (PCB design)
Geometry: board will be fit in flat cylinder. Make it as small and thin as possible.
1. CR2032 battery
2. Temperature sensor
3. Accelerometer for wake-on-shake functionality
1. Should work at least 6 months without changing the battery.
2. Board should talk to sensors and provide following API via BT: get temperature, and some events (initiated by sensor device): shake.
Let me know your effort and time estimates for:
1) PCB design