GO TO CLOUD (G2C) 3G CLICK
PID: MIKROE-3888
Weight: 25 g
Go to Cloud (G2C) 3G click is a gateway Click board™ which provides a simple and reliable
connection to the Click Cloud platform, a cloud-based rapid prototyping environment, hosted by
Mikroe. G2C 3G offers an unprecedented simplicity for adding Click Cloud connectivity over
UMTS/HSPA to any embedded application, by utilizing the simple UART interface: it can be
configured and managed using a minimal set of well-documented AT commands. With the simplicity
in mind, G2C 3G click represents an ideal solution for accessing user-friendly and intuitive Click
Cloud, a simple yet powerful rapid prototyping cloud solution.
Learn all about the Click Cloud solution by visiting the official web page. All the necessary
documentation to get you started, including the G2C 3G click User Manual, the AT Command
Manual, and the Click Cloud Guide can be found in the documentation below, in the download
section.
HOW DOES IT WORK?
G2C 3G click is a Click board™ which allows connection to the feature-rich Click Cloud
platform, over the 3.75G UMTS/HSPA network. G2C 3G click is envisioned so that
users can easily add cloud connectivity and develop their own cloud-based applications,
using only a set of simple AT commands, without having to delve into the complexity of
web, hardware, and communications related development. Thanks to this simplified
approach, everyone can benefit using the Click Cloud solution with G2C 3G click, since
this Click board™ has all the necessary protocol and communication settings already
implemented within its firmware. This saves a lot of time that would be otherwise wasted
on the firmware development, and to adapting it to work with some third-party solution.
Not to mention that such an effort would also require embedded and web programming
proficiency, along with several other engineering skills. G2C 3G click, on the other hand,
works in unity with Click Cloud solution, right out of the box.
G2C 3G click performs several tasks on its side, which are required to connect to the
Click Cloud platform. To establish the connection, an access to a local UMTS/HSPA
network with sim card option. For a reliable 3G (UMTS/HSPA) network connection, the
Click board™ utilizes the u-Blox SARA U-201 module can be used worldwide.
The Click board™ uses a powerful MCU to manage the connection parameters,
initialize the SARA U-201 module, and establish the connection with the Click Cloud
platform. This allows to set up the connection in just a few simple steps, issuing a set of
short AT commands, such as the SSID, password, device_ID, and so on. The complete
documentation with in-depth explanation of each AT command and its response can be
found in the AT Command Manual.
Besides the AT commands that are used to set up basic connection parameters, there
are also AT commands that allow storing of the connection parameters, including the
connection password, network SSID, device_ID, and other relevant connection data.
These parameters can be stored in the non-volatile memory of the Go to Cloud (G2C)
3G click. It is possible to restore them by a single macro command, resulting in a very
simplified connection procedure.
The functionality of the G2C 3G click will be constantly improved in the future.
Therefore, G2C 3G click supports an upgrade of its firmware over the onboard USB
connector. The firmware update process is very simple, using the familiar "HID
Bootloader" software tool from MikroElektronika.
Go to Cloud (G2C) click is equipped with five LED indicators. They are used to indicate
the presence of a power supply, the UMTS/HSPA connection, the USB connection, the
data transmit flow and the connection with the Click Cloud solution. These LEDs provide
visual feedback about the status of the G2C 3G click. This Click board™ requires only
5V power rail for proper operation.
CLICK CLOUD SOLUTION
Click Cloud solution is very simple to use, and it relies on a very comprehensive and
intuitive web-based Graphical User Interface (WEB GUI). It allows the rapid
development of cloud-based applications, offering a set of well-documented
functionalities, specially tailored to offer the best experience when used with the Click
board™ line of products. However, It can be used with other MikroElektronika products,
as well.
Click Cloud hosted by MikroElektronika provides a clean, intuitive, and logical concept,
abstracting the Click board™ as a "device" with its "device manifest" that contains a set
of pre-configured or custom-created sensors, actuators, and other devices, typically
found on various Click boards™. This concept allows very simplified management with
nice and clean data representation. An interactive online help within the WEB GUI offers
a detailed explanation of each feature of the Click Cloud solution. Besides using the
WEB GUI, there is also the possibility to access the Click Cloud over mobile apps,
based on IOS and Android OS platforms.
You can discover more about the features offered by Click Cloud solution, at the official
Click Cloud page and by reading Go To Cloud click Quick Start User Guide.
SPECIFICATIONS
Type
GSM/LTE,Cloud Routers,3G UMTS
Applications
G2C 3G click is an IoT gateway Click board™ that allows simple
and reliable connection and communication with the Click Cloud
service, hosted by Mikroe. In combination with other Click board™
you may create your own IoT applications (smart appliances,
process automation, data logging, and many others)
On-board
modules
SARA U-201, a 3.75G UMTS/HSPA cellular network module from
u-blox; MK64FN1M0VDC12 Arm® Cortex® M4 MCU from NXP
Key Features
All-in-one solution which provides an effortless IoT solution, using a
simplified set of well-documented AT commands. Powerful 32bit
MCU, coupled with the reliable and proven SARA U-201, a 3.75G
UMTS/HSPA cellular network module, ensures smooth and
effortless network connection to the Click Cloud
Interface
UART,GPIO
Compatibility
mikroBUS
Click board
size
L (57.15 x 25.4 mm)
Input Voltage
5V
PINOUT DIAGRAM
This table shows how the pinout on the G2C 3G click corresponds to the pinout on the
mikroBUS™ socket (the latter shown in the two middle columns).
Notes
Pin
Pin
Notes
General Purpose #0
GPO
1
AN
PWM
16
GP2
General Purpoe #1
Hardware Reset
RST
2
RST
INT
15
INT
Request to Send
UART Clear to Send
CTS
3
CS
RX
14
TX
UART Transmit
Ground
NC
4
SCK
TX
13
RX
NC
5
MISO
SCL
12
NC
NC
6
MOSI
SDA
11
NC
NC
7
3.3V
5V
10
5V
GND
8
GND
GND
9
GND
UART Receive
Power Supply
Ground
ONBOARD SETTINGS AND INDICATORS
Label
Name
Default
Description
LD1
PWR
-
Power LED Indicator
LD2
TX
-
Data transmit indicator
LD3
USB
-
USB service connection indicator
LD4
STAT
-
Status and network indicator
LD5
CONN
-
Broker service connection indicator
CN1
ANT
-
SMA antenna connector
CN2
-
-
microUSB connector
SOFTWARE SUPPORT
We provide a library for the Go to Cloud (G2C) 3G click on our LibStock page, as well as
a demo application (example), developed using MikroElektronika compilers. The demo
can run on all the main MikroElektronika development boards.
Library Description
The library carries generic command parser adopted for AT command based modules.
The library contains an example for basic initialization of the actuator and sensor demo
example.
Key functions:
void g2c3g_send_cmd ( char *p_cmd ) - Simple AT Command
g2c3g_error_t g2c3g_actuator_sw_parser ( char *rsp, char *act_ref, g2c3g_actuator_sw_t
*sw_state ) - Actuator switch parser
g2c3g_error_t g2c3g_actuator_cnt_parser ( char *rsp, char *act_ref, g2c3g_actuator_cnt_t
*num_data ) - Actuator counter parser
g2c3g_error_t g2c3g_actuator_str_parser ( char *rsp, char *act_ref, g2c3g_actuator_str_t
*str_data ) - Actuator string parser
void g2c3g_send_broker_cfg ( char *brc_key, char *brc_password ) - Parameter broker (device)
setting
void g2c3g_send_data_ref ( char *reference_buf, char *data_buf ) - Parameter data setting
Examples description
The application is composed of the three sections :
System Initialization - Initializes all necessary GPIO pins, UART used for communcation with G2C
3G module and UART used for logging.
Application Initialization - Initializes driver and timer at 10ms. Initializes default handler (with 1500ms
watchdog) with core init function. Module wake-up procedure is started and then the module is reset.
This procedure must be performed at start of the program in order for the module to be ready for
operation. Following commands are required in order to connect the module to click cloud.
Application Task - Starts the process of reading responses and sending the data to the click cloud.
void application_init ( )
{
// TIMER INIT
g2c3g_timer_int_cfg( );
// DRIVER INIT
g2c3g_uart_driver_init( ( g2c3g_obj_t )&_MIKROBUS1_GPIO, ( g2c3g_obj_t )&_MIKROBUS1_UART )
;
g2c3g_core_init( g2c3g_default_handler, 1500 );
// MODULE POWER ON
g2c3g_module_power( G2C3G_MODULE_POWER_ON );
g2c3g_reset_module( );
Delay_ms( 2000 );
while( g2c3g_device_status( ) != G2C3G_STATUS_DEVICE_READY );
Delay_ms( 2000 );
mikrobus_logWrite( "****************************** START ** ", _LOG_LINE );
g2c3g_send_cmd( &G2C3G_AT[ 0 ] );
g2c3g_command_delay( );
g2c3g_send_cmd( &G2C3G_AT_GMR[ 0 ] );
g2c3g_command_delay( );
g2c3g_send_cmd( &G2C3G_AT_CEN[ 0 ] );
g2c3g_command_delay( );
g2c3g_send_operator_cfg( &operator_apn[ 0 ],
&operator_username[ 0 ],
&operator_password[ 0 ] );
g2c3g_command_delay( );
g2c3g_send_cmd( &G2C3G_AT_NWC[ 0 ] );
g2c3g_command_delay( );
while( g2c3g_network_status( ) != 1 );
Delay_ms( 2000 );
g2c3g_send_broker_cfg( &device_key[ 0 ], &device_password[ 0 ] );
g2c3g_command_delay( );
g2c3g_send_cmd( &G2C3G_AT_BRC[ 0 ] );
g2c3g_command_delay( );
while( g2c3g_broker_status( ) != 1 );
Delay_ms( 2000 );
task_time = 0;
mikrobus_logWrite( "********* CONNECT TO CLICK CLOUD ** ", _LOG_LINE );
}
void application_task ( )
{
g2c3g_process( );
if ( task_time > 2000 )
{
g2c3g_send_data_ref( &sensor_ref[ 0 ], &data_buf[ 0 ] );
g2c3g_send_cmd( &G2C3G_AT_PUB[ 0 ] );
task_time = 0;
}
}
Additional functions
g2c3g_command_delay ( ) - Delay between 2 commands (recomended delay time)
actuator_demo( ) - Actuator parser demo example
g2c3g_default_handler( ) - Default handler for logging and collecting responses
Note:
Items required before starting the program:
Set operator parameters( APN, username and password ) for the SIM card.
Create a device on the click cloud and sets the device parameters (device_key and
device_password).
Enter sensor and / or actuator reference from manifest associated with the created device.
Example contains 2 types of response collection:
In config.h file one of these 2 response collection types can be select.
G2C3G_POLL_ENABLE = 1 (UART polling method) or
G2C3G_POLL_ENABLE = 0 (UART interrupt method).
Device manifest for test is "G2C 3G click - Test".
The full application code, and ready to use projects can be found on our LibStock page.
Other mikroE Libraries used in the example:
UART
C_Srting
Conversion
Additional notes and information
Depending on the development board you are using, you may need USB UART
click, USB UART 2 click or RS232 click to connect to your PC, for development systems
with no UART to USB interface available on the board. The terminal available in all
MikroElektronika compilers, or any other terminal application of your choice, can be
used to read the message.
MIKROSDK
This click board is supported with mikroSDK - MikroElektronika Software Development
Kit. To ensure proper operation of mikroSDK compliant click board demo applications,
mikroSDK should be downloaded from the LibStock and installed for the compiler you
are using.
For more information about mikroSDK, visit the official page.
https://www.mikroe.com/go‐to‐cloud‐g2c‐3g‐click/1‐20‐19