{"title":"Adafruit Ultimate GPS HAT for Raspberry Pi [Mini Kit]","handle":"adafruit-ultimate-gps-hat-for-raspberry-pi-a-b-pi-2-mini-kit","url":"/products/adafruit-ultimate-gps-hat-for-raspberry-pi-a-b-pi-2-mini-kit","description":"The Adafruit Ultimate GPS HAT adds high-quality GPS and GLONASS positioning to your Raspberry Pi. Built around a PA1616D module, it provides precise location data and a built-in real-time clock (RTC) with coin cell backup — perfect for outdoor projects, time synchronisation, and location-aware applications.\n\nThis mini kit includes the fully assembled GPS HAT and a 2×20 GPIO header for soldering. It connects via the Raspberry Pi's hardware UART and features a u.FL connector for an optional external active antenna, a prototyping area for adding your own components, and breakouts for all remaining Pi GPIO pins.\n\nKey Features\n\n\nGPS + GLONASS Support – Dual constellation tracking for improved coverage and faster fixes\n\n99-Channel Receiver – -165 dBm sensitivity with up to 10 Hz position updates\n\nBuilt-in RTC – Real-time clock with CR1220 coin cell backup for 7+ years of timekeeping, even when the Pi is off\n\nPPS Output – Pulse-Per-Second signal connected to GPIO pin #4 by default\n\nDual Antenna Support – Internal patch antenna for outdoor use, plus u.FL connector for external active antenna (auto-switching)\n\nFix Status LED – Visual indicator blinks when GPS coordinates are acquired\n\nPrototyping Area – Space on the board for adding LEDs, sensors, and other components\n\nGPIO Breakouts – Access to all spare Raspberry Pi GPIO pins\n\n\nIdeal For\n\nRaspberry Pi GPS tracking and navigation projects\nAccurate timekeeping and NTP server setups\nOutdoor data logging with location stamps\nMobile robotics and autonomous vehicle prototyping\n\n\nCompatibility\n\nRaspberry Pi Model A+, B+, Pi 2, Pi 3, Pi 4, and Pi Zero\n\n\nPackage Contents\n\n1× Adafruit Ultimate GPS HAT (fully assembled with GPS module and coin cell holder)\n1× 2×20 GPIO female header (requires soldering)\n\n\n\nImportant: This HAT uses the Raspberry Pi's hardware UART (RX/TX pins). You cannot use a serial console cable at the same time. Use HDMI/keyboard, SSH, or a composite monitor to access your Pi instead.\n\n\n\nNote: CR1220 coin cell battery not included — required separately for RTC backup. The updated PA1616D module is slightly taller (4 mm) than the original and has modified antenna query commands. Check the datasheet for details.\n\n\nResources\n\n\nAdafruit Ultimate GPS HAT Tutorial – Setup guide, wiring, and usage instructions\nPA1616D Module Datasheet (PDF)\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":9225,"title":"Default Title","sku":"AF-2324","price":62.56,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}