User Manual

www.geolink.io
User Manual (1.4.0) OpenTracker 2.4 5
Hardware Description
Board Overview
OpenTracker is an open-source development platform for vehicle tracking applications, compatible with
Arduino software and development environment.
The OpenTracker hardware includes a powerful 32-bit controller (as found on the Arduino DUE), a quad-
band GSM/GPRS modem with micro-SIM card socket, GPS/GLONASS module, CAN interface, 2 analog
inputs, 2 relay driving outputs, an internal expansion interface (including SPI, I2C, UART, GPIO, ADC and
modem audio) and a micro-USB interface to develop additional features.
Design files, firmware and Arduino board support packages can be found on GitHub:
https://github.com/geolink/opentracker-hardware
https://github.com/geolink/opentracker
https://github.com/geolink/opentracker-arduino-board
Processor
The Atmel SAM3A4C microcontroller is a 84MHz 32-bit ARM Cortex-M3 core with 256KB embedded Flash
(2 x 128 KB) and 64 KB embedded SRAM.
Processor datasheets are available at http://www.atmel.com/devices/SAM3A4C.aspx
Internal
Expansion Pins
USB Programming
Connector
Quectel M95 GSM/GPRS
Modem
GSM Antenna
Connector
GPS Antenna
Connector
microSIM
Slot
Quectel L76 GPS/GLONASS
Module
JTAG
Indicator LEDs
Main Connector
ATMEL Processor
Audio
Interface