With a range of interface options and an integrated IP stack, the modules are designed to support a wide range of data-centric applications. The unique combination of performance and flexibility make these modules ideally suited for medium speed M2M applications, such as smart energy gateways, remote access video cameras, digital signage, telehealth, and telematics.
The board has a rich set of components to simplify development: two SMA connectors, a MicroUSB port, as well as a SIM card slot.
The LARA-R211 module specifies data rates of up to 10.3 Mb/s for Download, and 5.2 Mb/s for Upload. The network protocol stack includes support for TCP, UDP, PPP, MMS, FTP, SMTP, SMTPS, HTTP, HTTPS, PING, and SSL. It covers following LTE bands: 3, 7, 20.
Antenna interfaces - The module has two RF pins with a characteristic impedance of 50 Ω. The primary antenna pin (ANT1) supports both Tx and Rx, providing the main antenna interface, while the secondary antenna pin (ANT2) supports Rx only for the LTE Rx diversity configuration.
A diversity antenna only covers the Rx frequencies, and its job is to acquire an independent sample of data. The application in which you are using the click board can then choose the receive signal it wants to use.
u-blox offers m-centre, a free evaluation software for all their cellular modules. It is an easy to use graphical interface where you can configure the module and save the changes on EPROM. You can also view and edit SIM phonebook entries, send text messages, and communicate with the wireless module using AT commands.
Simply put 4G is the fourth generation of the cellular network standard. This fourth generation does not support traditional circuit-switched telephony service, but all IP based communication such as IP telephony.
If you are not familiar with cellular network standards and protocols and are not sure whether you need GSM or 3G or 4G, read our learn.mikroe.com article about 2G/3G/4G to get a better understanding.
LTE or Long Term Evolution, or 4G LTE as it is most commonly called has different categories defined. There are nine different ones so far. LARA-R211 module supports the LTE Cat 1.
|Applications||medium speed M2M applications, such as smart energy gateways, remote access video cameras, digital signage, telehealth, and telematics, and more|
|On-board modules||LARA-R211 cellular module from u-blox|
|Key Features||Data rates of up to 10.3 Mb/s for Download, Data rates of up to 5.2 Mb/s for Upload, Covering the following LTE bands: 3, 7, 20, Micro SIM card socket, SMA antenna connectors, micro USB connector|
|Input Voltage||3.3V or 5V|
|Click board size||L (57.15 x 25.4 mm)|
This table shows how the pinout on 4G LTE-E click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).
|Module status||STA||1||AN||PWM||16||RI||Ring indicator|
|Power up module||PWK||2||RST||INT||15||CTS||UART Clear to send|
|UART Ready to send||RTS||3||CS||TX||14||TXD||UART Transmit data|
|NC||4||SCK||RX||13||RXD||UART Receive data|
|Power supply||+3.3V||7||3.3V||5V||10||+5V||Power supply|
|Designator||Name||Default Position||Default Option||Description|
|JP1||I/O SEL.||Left||3V3||Power Supply Voltage Selection 3V3/5V, left position 3v3, right position 5v|
|Designator||Name||Type (LED, BUTTON...)||Description|
|LD1||NET||LED||Network status LED.|
|LD2||STAT.||LED||Module Power On status.|
Code examples for 4G LTE-E click, written for MikroElektronika hardware and compilers are available on Libstock.
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