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C3-370C Mini GPS module (Built-in Antenna)


 C3-370C is a mini GPS module with ceramic antenna. We will make a topic about this module on our blog and forum, to teach you how to use it and download new firmware for it, of cause with many demo for different platforms, lime ATMega328, C51 and STM32.

DATASHEET of C3-370C GPS Module (The datasheet is English, but maybe your pdf reader should support Korean character)

Above it the pin define of this module. We also provide the breakout cables for this connector.Come with the module:


You can use the SiRFflash to download the new firmware for this module, to reset the baud rate, time zoom and so on. We provide a USB to TLL serial tool for you to connect GPS module with USB port of PC.

Download the SiRFflash software here.


Use the GPS Viewer software , you can test your module with PC.

Download the GPS Viewer here.



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  • Model: WIR013
  • Shipping Weight: 35g
  • 0 Units in Stock