Instrumented Football Helmet PCB Layout
Project Update Power Component Change LDO: TPS75733 Buck Booster : LTC3440 Booster: LT1303 Fuel Gauge: DS2740U Charge Controller: MCP73838
PCB Rundown 7 Individual boards Power Micro SD MatchPort Accelerometer x 3
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
Connections Cat 5 Speaker wire for Power to PCBs Shielded Available Cheap Adequate data lines Speaker wire for Power to PCBs
Estimated PCB 3.25” x 4.33” (not including battery) Accelerometer sets SD Battery WiFi uC Power
Questions?