1. WWU Taylor Reijm

3. LPC2378 32-bit MCU 512kB Flash Memory 144-pin 20MHz oscillator Used to control TFT touch screen LCD and LCD controller. 1 GPIO used for automatic power off circuitry RXD3 and TXD3 used to interface with GPS Receiver.

4. 7.2V NiMH battery with 3000mA hrs. IRFZ44N V GS=2V to start conduction. V GS=0V to end conduction. GPIO and SW2 used to control conduction ATPS006A0X Pico TLynx DC-DC switching power module. Fixed Switching Frequency Remote On/Off 4.5Vdc-14Vdc 6A Trim resistance used to get output of 5V RTRIM=[5.91/(V o -0.591)]k ohms RTRIM(5V)=1.34k ohms NCP1117 18V max in 3.3V out 800mA output current

5. ADS7843- Touch screen controller 12 bit ADC with synchronous serial interface Comes connected as shown from Gravitech ELT240320TP-TFT LCD Thin Film Transistor Touch screen interface 2.8” screen 240x320 pixels. Backlight control Cap Sense O/P

6. Active low reset

7. Oscillator 20MHz oscillator with enable tied to 3.3V supply EEPROM 8kB I2C interface w/LPC2378

8. EM-406A 4800 baud NMEA 0183 output 4.5V~6.5V DC input supply ~44mA O/P voltage level 0V to 2.85V One Pulse Per Second not used.