MikroElektronika
How to connect the board?
The SmartGM862 is designed for use with Mikroelektronika’s development systems. To make connection between
development system and SmartGM862 use flat cable with IDC10 connector and make connection between 2x5 male
header on development system port and 2x5 male header CN1 on SmartGM862. Which port on development system will
be used depends on position of MCU pins which are used for UART communication. When connection is established,
depending which development system is in use, turn ON appropriate switch on DIP switch SW1, Table 1.
Development system SmartGM862 CN1 pin UART pin
PIC/PIC18FJ
PIN7
RX
dsPIC30/33/PIC24
PIN4
RX
AVR/8051
PIN0
RX
ARM
PIN1
RX
PIC/PIC18FJ
PIN6
TX
dsPIC30/33/PIC24
PIN5
TX
AVR/8051
PIN1
TX
ARM
PIN0
TX
Table 1: DIP switch SW1 position
In order to supply SmartGM862 with power it is necessary to connect external power supply via AC/DC connector
CN2. Power supply voltage can be in range between 7 to 23V AC or 9 to 32V DC. As indication that power supply is
connected LED marked with LD1 will be turned on. To connect microphone with SmartGM862 use screw terminal CN4
which is marked with “-” and “+”. On “-” side of screw terminal connect minus phase, and on “+” side connect plus phase
of the microphone. In order to connect speaker use screw terminal CN5. “-” side of screw terminal is used for minus
phase and “+” is used for plus phase of speaker. If you want to access Telit GM862 module pins on SmartGM862 board
you can use marked pads CN3. To power up Telit GM862 module is necessary to press and hold push button marked
with “POWER ON GSM MODULE” for 1s.
How to use the board?
In order to use SmartGM862 it is necessary to place Telit GM862 module on board. After that connect antenna with Telit
GM862 module, Figure 1. Now connect SmartGM862 with development system as described in previous section. Write
program and upload it to MCU on development system. Program example can be found on:
http://www.mikroe.com/eng/products/view/468/smartgm862-board/
