====== Similar devices ======
Similar devices:
  * [[http://marcusjenkins.com/gps-vehicle-tracker-with-a-real-gps-receiver/]]
  * Orange B6 Phone
  * Smartwatches
  * SIM808 [[https://www.adafruit.com/product/2637]]
  * Smartphone Melrose MP4 Terminator X

====== Resources ======

  * [[http://codeasm.com/U8/|U8 Smartwatch Hacking 101]]
  * Fernvale
    * http://www.cnx-software.com/2015/01/02/fernvale-open-source-hardware-iot-board-based-on-mediatek-mt6260-soc-with-gsm-connectivity/
    * [[http://www.bunniefoo.com/fernvale/fernvale-31c3.pdf]]
    * [[http://www.bunniestudios.com/blog/?p=4297]]
    * [[https://kosagi.com//w/index.php?title=Fernvale_Main_Page]]
    * [[https://kosagi.com//w/index.php?title=MTK_Components]]



====== PCB ======
GT06-V01

===== Connections =====

  * + SPK 
  * - SPK
  * + SOS - to button
  * - SOS - to button
  * + MIC
  * - MIC
  * RX (2,8V)
  * TX (2,8V)
  * GND 
  * ACC to power after key
  * OIL fuel pump relay (ground when active)
  * V-  to car battery
  * V+  to car battery
  * 
===== Amplifier 8733A =====
For speaker / siren output
  * 8733A QFN20 new original authentic audio power amplifier pen

====== Power supply XL1509-ADJE1  ======
[[http://www.xlsemi.com/datasheet/XL1509%20datasheet.pdf]]
Producing 5V output
  * 2A 150KHz 40V Buck DC to DC Converter    
  * Output Adjustable from 1.23V to 37V 
  * Wide 4.5V to 40V Input Voltage Range

====== Battery ======
4.2 constant voltage during charging (with module switched off)


====== PIC 12F629 ======
[[http://www.microchip.com/wwwproducts/en/PIC12F629]]
  * 1.75 kB Flash
  * 128 bytes of EEPROM data memory,
  * Programmable pull-up resistors, 
  * 64 Bytes RAM
  * 128 Bytes EEPROM
  * Timers 1 x 8-bit, 1 x 16-bit
  * 1 Comparator
  * Operating Voltage Range (V) 2 to 5.5
  * Pin Count 8


====== GPS MT3336N ======
[[https://labs.mediatek.com/fileMedia/download/4c04f268-9f17-4525-954c-d1ae6fdc2f57]]
  * GPS/GLONASS/GALILEO/BEIDOU (after ICD released) receiver
  * Supports multi-GNSS incl. QZSS, SBAS ranging
  * Supports WAAS/EGNOS/MSAS/GAGAN
  * 12 multi-tone active interference cancellers (ISSCC2011 award)
  * RTCM ready
  * Indoor and outdoor multi-path detection and compensation
  * Supports FCC E911 compliance and A-GPS
  * Max. fixed update rate up to 5 Hz

====== GSM Baseband VC52780 ======
<code>
VC52780
1552
A5M007
</code>



====== SoC MT6260DA ======
<code>
Mediatek
MT6260DA
1319-AMAH
</code>
GSM/GPRS/EDGE-RX SOC Processor
  * 8MB built-in RAM
  * 4MiB NV memory
  * [[http://www.mikrocontroller.net/attachment/242886/datasheet.pdf]]
  * 
MT6260 is a monolithic chip integrating leading edge power management unit, analog baseband
and radio circuitry based on the low-power CMOS process.

MT6260 is a feature-rich and extremely powerful single-chip solution for high-end GSM/GPRS and EDGE-Rx capability. 
Based on the 32-bit ARM7EJ-S TM RISC processor, MT6260’ s superb processing power, along with high bandwidth architecture and dedicated hardware support, provides a platform for high-performance GPRS/EDGE-Rx Class 12 MODEM application and leading-edge multimedia applications.