Gboard Pro

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Overview

Gboardpro.jpg

Gboard Pro is a unique Arduino mainboard with SIM900 GSM / GPRS module, XBee socket, nRF24L01 + module interface, micro SD card interface, ITDB02 parallel LCD module interface, electronic brick interface and ATmega2560 chips, which can achieve wireless control via XBee, nRF24L01 + or GSM / GPRS with functions covering from smart home to remote control of robots to meet various needs of different projects.

Go shopping Gboard Pro (SKU:IM130514001)

Specifications

PCB size 131.0mm X 68.8mm X 1.6mm
Supply voltage 7~23V DC
Operating voltage 3.3V DC
Microprocessor ATmega2560
Indicators PWR,NET,Status,Test
Communication interfaces XBee,nRF24L01+,UART,IIC,ITDB02 LCD,micro SD

Electrical characteristics

Item Min. Typical Value Max. Unit
Supply voltage 7 - 23 VDC
Input high voltage VH 3 3.3 3.6 V
Input low voltage -0.3 0 0.5 V
Average Current consumption - 100 500 mA
Peak Current consumption - - 2 A

Hardware

Click to zoom the picture.

Gboard pro - dimension.png

pinmap

ITDB02 Parallel LCD Module Interface

Index of Interface Name of Interface Index of Arduino Pin of Atmega2560
1 GND GND GND
2 DB0 D37 PC0
3 VCC 4.2V -
4 DB1 D36 PC1
5 NC - -
6 DB2 D35 PC2
7 LCD_RS D38 PD7
8 DB3 D34 PC3
9 LCD_WR D39 PG2
10 DB4 D33 PC4
11 LCD_RD 3V3 3V3
12 DB5 D32 PC5
13 DB8 D22 PA0
14 DB6 D31 PC6
15 DB9 D23 PA1
16 DB7 D30 PC7
17 DB10 D24 PA2
18 Touch_CLK D6 PH3
19 DB11 D25 PA3
20 Touch_CS D5 PE3
21 DB12 D26 PA4
22 Touch_DIN D48 PL1
23 DB13 D27 PA5
24 Touch_BUSY - -
25 DB14 D28 PA6
26 Touch_DOUT D3 PE5
27 DB15 D29 PA7
28 Touch_IRQ D2 PE4
29 LCD_CS D40 PG1
30 SD_MISO D50 PB3
31 NC - -
32 SD_SCK D52 PB1
33 LCD_RST D41 PG0
34 SD_MOSI D51 PB2
35 NC - -
36 SD_CS D53 PB0
37 LED+ 3V3 3V3
38 NC - -
39 LED- GND GND
40 NC - -

Electronic Bricks Interface

Index of Interface Name of Interface Index of Arduino Pin of Atmega2560
1 EB0 A0 PF0
2 EB1 A1 PF1
3 EB2 A2 PF2
4 EB3 A3 PF3
5 EB4 A4 PF4
6 EB5 A5 PF5
7 EB6 A6 PF6
8 EB7 A7 PF7
9 EB8 A8 PK0
10 EB9 A9 PK1
11 EB10 A10 PK2
12 EB11 A11 PK3
13 EB12 A12 PK4
14 EB13 A13 PK5
15 EB14 A14 PK6
16 EB15 A15 PK7
17 SCL D21 PD0
18 SDA D20 PD1
19 RX1 D19 PD2
20 TX1 D18 PD3

nRF24L01+ Module Interface

Index of Interface Name of Interface Index of Arduino Pin of Atmega2560
1 GND - -
2 3V3 - -
3 CE D12 PB6
4 CS D11 PB5
5 SCK D9 PH6
6 MOSI D8 PH5
7 MISO D7 PH4
8 IRQ - PE7

Micro SD Socket

Index of Interface Name of Interface Index of Arduino Pin of Atmega2560
1 SD_CS D4 PG5
2 SD_MOSI D51 PB2
3 3V3 - -
4 SD_SCK D52 PB1
5 GND - -
6 SD_MISO D50 PB3

XBee Interface

Index of Interface Name of Interface Index of Arduino Pin of Atmega2560
1 XBee_DOUT D15(RX3) PJ0
2 XBee_DIN D14(TX3) PJ1
3 XBee_RESET D49 PL0

SIM900 Communication Interface

Index of Interface Name of Interface Index of Arduino Pin of Atmega2560
1 SIM900_TXD D17(RX2) PH0
2 SIM900_RXD D16(TX2) PH1
3 SIM900_RST D47 PL2
4 SIM900_PWR D46 PL3

Indicators

  • PWR

Power indicator:Normally ON indicates normal power supply to Gboard Pro.

  • Status

Status indicator:Normally ON indicates SIM900 already powered on.

  • NET

Network indicator:OFF indicates SIM900 does not work; ON for 64ms / OFF for 800ms indicates SIM900 did not find the network; ON for 64ms / OFF for 3000ms indicates SIM900 registered on the network; ON for 64ms / OFF for 300ms indicates GPRS communication.

Buttons

  • Reset

ATmega2560 reset button:press the button to reset ATmega2560

  • Sim_rst

SIM900 reset button:press the button to reset SIM900

  • sim_pwr

SIM900 power button: if SIM900 is powered off, it will be powered on by keeping pressing the button (for more than 500ms); if SIM900 is powered on, it will be powered off by keeping pressing the button (for more than 500ms).

SIM900 power supply and reset connection

In Gboard Pro,power and reset buttons of SIM900 can be operated via software I/O pins, and the connection of pins is shown as below:

Arduino pin SIM900 pin Enable
D46 PWR High level Active
D47 RESET High level Active

Note: when you use Gboard pro, you must firstly connect with external power, then Foca. And before that you have to switch Foca to 3.3V, otherwise the LDO chip will be easily burnt.

Download

Datasheet for Gboard Pro

Schematic for Gboard Pro

Library for Gboard Pro

GSM GPRS GPS Bluetooth for SIM800/808/900/908 Library

Useful Link