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Amazon.com: SparkFun GPS-RTK Dead Reckoning pHAT Compatible with Raspberry Pi-Concurrent Reception of GPS GLONASS Galileo BeiDou High Precision GPS - Receives L1C/A & L2C Bands Voltage:5V or 3.3V Logic:3.3V : Electronics
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Adafruit Ultimate GPS HAT for Raspberry Pi A+/B+/Pi 2/3/4/Pi 5 [Mini Kit] : ID 2324 : $29.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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