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USB/TTL Raspberry Pi GPS Tracker
The USB/TTL Raspberry Pi GPS Tracker is a compact GPS location module built around the L80-39 chip. With 66 search channels and 22 simultaneous tracking chan...
The USB/TTL Raspberry Pi GPS Tracker is a compact GPS location module built around the L80-39 chip. With 66 search channels and 22 simultaneous tracking channels, it delivers fast satellite acquisition and reliable positioning accuracy down to 2.5m.
Featuring both USB and TTL interfaces, this module connects easily to Raspberry Pi, Arduino, STM32, and other microcontrollers. It includes an onboard CP2102 USB-to-TTL serial converter, an internal patch antenna for outdoor use, and an SMA connector for attaching an external active antenna when used indoors. Communication uses the standard NMEA0183 protocol at 9600 bps.
Key Features
- Dual Interface (USB + TTL) – Connect via Micro USB or 8-pin header for maximum flexibility
- L80-39 GPS Chip – 66 search / 22 tracking channels with –165 dBm tracking sensitivity
- Fast Fix Times – Cold start under 35s (under 15s with EASY technology)
- Built-in CP2102 USB-to-Serial Converter – Plug-and-play USB connectivity
- Internal Patch Antenna + SMA Connector – Works outdoors with the onboard antenna or indoors with an external active antenna
- PPS Output – Synchronise time with satellite signals for precision timing applications
- Fix Status LED – Blinks to indicate when coordinates have been determined
- Built-in LNA – Low-noise amplifier for improved reception sensitivity
- RTC Battery Compatible – Maintain time data between power cycles
- Wide Operating Temperature – –40°C to +85°C
Ideal For
- Raspberry Pi GPS tracking and navigation projects
- Arduino and microcontroller-based location logging
- Time synchronisation applications using PPS
- Outdoor data logging and asset tracking
Specifications
- GPS Chip – L80-39
- Operating Voltage – 3.3–5.0V DC
- Max Operating Current – 100mA
- Positioning Accuracy – <2.5m CEP
- Speed Accuracy – <0.1 m/s
- Tracking Sensitivity – –165 dBm
- Capture Sensitivity – –148 dBm
- Channels – 22 tracking / 66 capture
- Update Rate – 1Hz default, up to 5Hz
- Data Format – NMEA0183
- Serial Baud Rate – 9600 bps (default)
- Antenna Connector – Standard SMA
- Connection – 8-pin × 2.54mm pitch header, Micro USB
- Operating Temperature – –40°C to +85°C
- Dimensions – 39.1 × 29.0mm
- Weight – 4.35g
Package Contents
- 1× USB/TTL Raspberry Pi GPS Tracker
- 1× Micro USB Cable
- 10× F/F DuPont Wires
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- baud
- Baud is the signalling rate of a serial connection, often used as the speed setting for UART communication. Matching the baud rate matters because both connected devices must use the same setting for readable data.
- 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.
- 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.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- 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.
- SMA
- A threaded coaxial connector commonly used for antennas. It matters because you need antennas with matching SMA connectors, or suitable adapters, for the LTE and GNSS antenna ports.
- STM32
- STM32 is a family of microcontroller chips commonly used in embedded electronics. Knowing a product uses an STM32 can help when looking at firmware updates, pin connections, or low-level serial control options.
- TTL serial
- A simple serial data connection that uses microcontroller logic-level signals rather than computer RS-232 voltage levels. It matters because the camera can connect directly to many microcontroller pins or a USB-to-TTL serial adapter, but not safely to an old-style RS-232 port without conversion.
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Supplier page — dfrobot.com
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