Adafruit
Adafruit Mini GPS PA1010D - UART and I2C - STEMMA QT
The Adafruit Mini GPS PA1010D is a compact 25×25 mm GPS/GNSS breakout with a built-in patch antenna, dual UART and I2C interfaces, and STEMMA QT connectors f...
The Adafruit Mini GPS PA1010D is a compact 25×25 mm GPS/GNSS breakout with a built-in patch antenna, dual UART and I2C interfaces, and STEMMA QT connectors for solderless plug-and-play use. Powered by the MTK3333 chipset, it supports GPS, GLONASS, Galileo, and QZSS satellite systems with up to 10 Hz position updates.
With −165 dBm tracking sensitivity, 30 mA navigation current, and 5V-friendly design, this module is ideal for compact projects where space and power are at a premium. Unlike the Ultimate GPS modules, this one is designed to be as small as possible — there's no external antenna connector.
Key Features
- Multi-GNSS Support – GPS, GLONASS, Galileo, and QZSS
- High Sensitivity – −165 dBm tracking with up to 33 simultaneous channels
- Up to 10 Hz Updates – High-speed position logging and tracking
- Dual Interface – Both UART and I2C; choose whichever suits your project
- STEMMA QT / Qwiic Ports – Solderless I2C connection, no soldering needed
- Built-In Patch Antenna – No external antenna required
- Low Power – Only 30 mA during navigation, with low-power and standby modes
- 5V Friendly – On-board 3.3V regulator with 5V-safe inputs
- PPS Output – Pulse per second with ±20 ns jitter on fix
- RTC Battery Support – CR1220 holder for warm starts (battery not included)
- Status LEDs – Green power LED and red PPS LED (blinks at ~1 Hz on fix)
Specifications
- Dimensions: 25 × 25 mm (1.0 × 1.0 in)
- Up to 210 PRN channels – 99 search, 33 simultaneous tracking
- Current Draw: ~30 mA during navigation
Ideal For
- Compact GPS tracking and logging projects
- Wearable and portable GPS devices
- Drone and robotics navigation
- Time-synchronisation applications using PPS output
Package Contents
- 1× Adafruit Mini GPS PA1010D breakout (with STEMMA QT connectors)
- 1× Header pin strip
- 1× CR1220 coin cell holder (battery not included)
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- 3.3V regulator
- A 3.3V regulator is a power circuit that provides a steady 3.3 volts for parts that need that supply voltage. On a breakout board, it can let the sensor run safely even when the connected microcontroller or power source uses a higher voltage.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- Galileo
- Europe’s satellite navigation system. Galileo support can improve satellite availability and accuracy, especially when combined with GPS and other constellations.
- GLONASS
- Russia’s satellite navigation system. A receiver that can also use GLONASS has more satellites to choose from, which can improve positioning reliability when the sky view is partly blocked.
- GNSS
- GNSS stands for Global Navigation Satellite System, covering positioning systems such as GPS and similar satellite networks. It matters here because high-precision GNSS modules can output lots of serial position data that this product can send wirelessly to a computer or phone.
- GPS
- The US satellite navigation system used by GNSS receivers to calculate position and time. Support for GPS is important because it is widely available and often used together with other constellations for more reliable positioning.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- Qwiic
- Qwiic is a plug-in connector system for I2C devices that uses small 4-pin cables, so you can connect compatible sensors without soldering. It matters because your controller or adapter also needs Qwiic, or you will need a cable or breakout to wire it up.
- QZSS
- Japan’s regional satellite navigation system designed to improve coverage around Japan and the Asia-Pacific region. QZSS support can improve satellite availability in supported regions when used alongside GPS.
- RTC
- A Real-Time Clock keeps track of time even when the main processor is asleep or powered down, usually with a small backup battery. It matters for data logging and tracking projects that need accurate timestamps.
- STEMMA
- A plug-and-cable connection system used on some maker electronics boards to make wiring simpler. If a product uses STEMMA, you need the matching cable or connector type to plug it in without soldering.
- STEMMA QT
- A small plug-in connector system for I2C boards that lets you connect compatible sensors and controllers without soldering. It matters because it can make wiring faster and less error-prone, especially when adding several small modules to a project.
- UART
- UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
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Brands
Sensors & Input
Related Tutorials
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