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Example Schematic EXS62/82, ENS22, EHS5, BGS5, BGS2, ELS31

Documentation, January 20, 2016 - 5:23pm, 9961 views

BGS2 demo with audio connector

Please find attached a nice example schematic with power supply and little controller chip.

The following feature are supported by EXS62/82, ENS22, BGS1/2, EHS5, ELS3-demo pcb:

modules: EXS62/82, ENS22, BGS1, BGS2, BGS5, EHS5, ELS31, all using small footprint

Power Supply

  • External power plug 8-30V
  • 5V USB power supply
  • LiPo 4.2v battery chargeable from USB and power plug


  • 115.2kbit/sec COM port connected to STM32F070 controller
  • STM32F070 115.2kbit/sec COM port connected to module


  • virtual USB-COM port (STM32F070 controller)      or
  • direct module access to EXS62/82, BGS5, EHS5 and ELS3

GSM/HSDPA/LTE antenna:

  • on board GSM/HSDPA/LTE ceramic antenna     or
  • 2 x SMA connector for GSM / LTE-diversity


  • analogue audio with iPhone plug (BGS2 only)
  • DAI/PCM connector


-Micro SD-card access for configuration and log data

-GPS with on board antenna (OriginGPS)

-Test button

LED’s for

  • Module on/off
  • Call activity, (SYNC-LED)
  • RING (red), CTS
  • SD access (red) (controller GPIO)

1 line pin header for some remaining controller GPIO pins, GND, + 3.3V, + 4.8V

  • 2 x Inputs with simple ESD protection

Block circuit


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This is very useful. A very good overview and combination of things.
The power supply section is cool.

Antero Markkula
Communication and Mechatronics

Enkom Active Oy –
Upseerinkatu 3 A, 02600 Espoo, Finland
Mobile: +358 400 411368
Office: +358 10 204 0000
Fax: +358 10 204 0010


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