General GPS project notes

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Garmin

Trimble

Lassen

Lassen SQ

Serial TTY to RS232

Serial TTY to Bluetooth

Serial TTY to USB

PIC datalogger

Power supply

High efficiency switching voltage regulators National LM2597 3.3 and 5.0 "Simple Switcher" 8-DIP $3.78 Digikey

Requires 1N5817 Schottky diode and 100 uH inductor (M9799-ND) and the usual handful of caps.


Backup / standby power Button cell batteries - CR2032


	Quantity  	Part Number  	Description  	Customer Reference  	Backorder Quantity  	Unit Price

USD Extended Price USD 1 4 H2053-ND CONN HEADER 10POS 2MM PCB TIN 0 0.76000 $3.04 2 10 P189-ND BATTERY LITHIUM COIN 3V 20MM 0 0.27000 $2.70 3 10 BA2032-ND HOLDER COIN CELL CR2032 EJECT 0 0.70000 $7.00 4 10 497-1442-5-ND IC POSITIVE REG 5V TO-220FP 0 0.64800 $6.48 5 10 CP-002AH-ND CONN PWR JACK 2.1X5.5MM HIGH CUR 0 0.36400 $3.64 6 10 CP-004A-ND CONN 2.1MM FEMALE PLUG 5.5MM OUT 0 0.55900 $5.59 7 4 AD22105AR-ND IC THERMOSTATIC SWITCH SS 8-SOIC 0 3.08000 $12.32 8 2 LM2597N-3.3-ND IC REG SIMPLE SWITCHER 8-DIP 0 3.78000 $7.56 9 2 LM2597N-5.0-ND IC REG SIMPLE SWITCHER 8-DIP 0 3.78000 $7.56 10 10 1N5817DICT-ND DIODE SCHOTTKY 20V 1A DO-41 0 0.30000 $3.00 11 2 P151-ND BATT 3V LITH CAMERA - BULK PKG 0 2.63000 $5.26