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The Uputronics Raspberry Pi GPS/RTC Expansion Board provides a modern multi GNSS GPS receiver and hardware RTC with quick no soldering required connection to all Raspberry Pi boards with the 2x20 header (the original Pi Model A/B are not supported). Featuring PPS (Pulse per second) output to permit the use of the board for PPS disciplined NTP servers, RAW output available from the UBlox™ GPS module and twin super caps for GPS hot start/setting retention & maintaining RTC.

This board retains backwards compatibility with previous generation Uputronics Pi GPS boards. With its features and ease of installation we believe this is the ultimate GPS /  RTC HAT for the Raspberry Pi.

Thermal vents for use with PoE HAT now standard. We also amended the default baud rate to 115200.

GPS Specifications:

• 72-channel u-blox™ M8 engine
• Up to 3 concurrent GNSS (BeiDou,Galileo,GLONASS,GPS/QZSS)
• Default GNSS: GPS/GLONASS.
• -167dBm Navigation Sensitivity
• 10Hz navigation rate in multiGNSS mode, 18Hz in GPS only
• RAW Output available via UBX-RXM-RAWX Message
• 3V supplied to antenna port to power active antenna
• Antenna requirements: Active 3V Ceramic Patch
• No EEPROM settings must be sent at power up or saved to battery backed RAM.
• Default baud rate: 115200bps
• I2C Bus (Address 0x42)
• Robust SMA antenna connection.

For full documentation please consult the u-blox 8/u-blox M8 receiver description including protocol specification document (UBX-13003221) linked here: https://store.uputronics.com/files/UBX-13003221.pdf

RTC Specifications:

• Micro Crystal RV-3028-C7 Real Time Clock Module
• Factory calibrated ±1 ppm @ 25°C
• I2C Bus (Address 0x52)
• Built in kernel compatibility
• Provides year, month, date, weekday, hours, minutes and seconds

In The Box

1 x Raspberry Pi GPS/RTC Expansion Board
4 x 11mm standoffs w/8 M2.5 Screws
1 x Header with 4.93mm tails

Full Data Sheet Here : https://store.uputronics.com/files/Uputronics%20Raspberry%20Pi%20GPS%20RTC%20Board%20Datasheet.pdf