SB Components’ Trekko Pico is an open-source, RP2040-powered GPS logger with multi-GNSS support

After the success of their Kickstarter campaign, SB Components has now made the Trekko Pico GPS logger available for pre-order. The Trekko Pico is a small location logger for travelers and outdoor enthusiasts that makes it easy to track routes and record their travels.

A Raspberry Pi RP2040 powers the Trekko Pico, providing the programming, connectivity, and data logging functionality. The Quectel GNSS L76K module supports the concurrent reception of GPS, GLONASS (or BeiDou), Galileo, SBAS, and QZSS signals, with 32 tracking and 72 acquisition channels.

trekko pico gps logger front

There is a JST 2-pin connector that can be used to attach an external battery, and the Microchip MCP73831 controller is responsible for battery charging and management. Also, users can slot a coin cell into the holder at the back of the board to power a real-time clock for data backup purposes.

Potential applications for the Trekko Pico GPS logger include surveillance, telematics, Geographic Information Systems (GIS), asset tracking, and fleet management.

Trekko Pico specifications:

  • Microcontroller – Raspberry Pi RP2040 Dual ARM Cortex-M0+ @ 133MHz with 2MB onboard flash
  • Storage – microSD card slot for data logging
  • Quectel GNSS L76K
    • Supports Multi-GNSS systems: GPS/GLONASS/BDS/QZSS
    • Protocol: NMEA 0183
    • L1 Band Receiver: 32 tracking ch/ 72 acquisition ch
    • Sensitivity: Acquisition -148dBm, Re-Acquisition -160dBm, Tracking -162dBm
    • Position Accuracy: 2.0m CEP (circular error probability)
    • Speed Accuracy: 0.1m/s
    • Acceleration Accuracy(max): 0.1m/s²
    • Timing Accuracy: 30ns
    • UART Baud Rate: 4800 ~ 115200 bps (9600 bps by default)
  • Connectivity
    • USB Type-C for programming/power
    • 6-pin JST SH GPIO connector, 1mm
  • LEDs
    • Programmable RGB LED for various activity status indications
    • Status led for board power, PPS signal, Tx, and Rx state indication
  • Buttons
    • 2x programmable buttons for additional controls
    • Boot button for firmware flashing
  • Power
    • Board supply voltage: 5V
    • Operating pin voltage: 3.3V
    • Onboard battery charging and management via MCP73831 controller
    • 2-pin JST connector
    • RTC battery holder

trekko pico gps logger back

It supports drag-and-drop programming with MicroPython, CircuitPython, and Arduino development platforms, and offers a plug-and-play experience without the need to install drivers.

The Trekko Pico is completely open-source. There are separate GitHub repositories for the source code and hardware design files (schematics and 3D/STEP files). You can find more information about the board, as well as a getting started guide, in the software GitHub repository. You can buy the Trekko Pico from Tindie (currently out of stock) for about $60 or from the SB Components shop for $52 (available for pre-order).

Via Hackster.io

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