1. Instrumented Football Helmet
PCB Layout

2. Project Update Power Component Change LDO: TPS75733
Buck Booster : LTC3440
Booster: LT1303
Fuel Gauge: DS2740U
Charge Controller: MCP73838

3. PCB Rundown 7 Individual boards Power Micro SD MatchPort
Accelerometer x 3

4. Power SD PCB Power PCB Micro PCB MatchPort Wall Wart 5V DC LDO
Accel PCB
Battery
DC LDO
MatchPort
Wall Wart 5V
660mW
1144mW
66mW
1320mW
90mW
90mW
90mW

5. Connections Cat 5 Speaker wire for Power to PCBs Shielded Available
Cheap
Adequate data lines
Speaker wire for Power to PCBs

6. Estimated PCB 3.25” x 4.33” (not including battery) Accelerometer setsSD
Battery
WiFi uC
Power

7. Questions?