4G module
The 4G module enables the connectivity to high speed LTE, HSPA+, WCDMA cellular networks in order to make possible the creation of the next level of worldwide compatible projects inside the new "Internet of Things" era.
This communication module is specially oriented to work with Internet servers, implementing internally several application layer protocols, which make easier to send the information to the cloud. We can make HTTP navigation, downloading and uploading content to a web server. We can also set secure connections using SSL certificates and setting TCP/IP private sockets. In the same way, the FTP protocol is also available which is really useful when your application requires handling files.
The 4G module offers the maximum performance of the 4G network as it uses 2 different antennas (normal + diversity) for reception (MIMO DL 2x2), choosing the best received signal at any time and getting a maximum download speed of 100 Mbps.
We chose the LE910 chipset family from Telit as it comprises the most complete 4G/LTE set of variants released up to date. It counts with many different models, each one specifically designed for one market but all of them with the same footprint:
LE910-EU (Europe/Brazil): CE, GCF, ANATEL
LE910-NAG (US / Canada): FCC, IC, PTCRB, AT&T approved
Model: LE910 (Telit) Versions:
Europe/Brazil (new v2 in November 2019)
America (new v2 in April 2019)
Europe/Brazil version:
2G: 900/1800 MHz
WCDMA: 900/2100 MHz
LTE: 800/900/1800/2100/2600 MHz
America version:
WCDMA: 850/1900 MHz
LTE: 700/850/1700/1900 MHz
LTE (downlink):
Europe/Brazil version up to 100 Mbps
America version up to 100 Mbps
LTE (uplink): up to 50 Mbps TX power:
Europe/Brazil:
Class 4 (2 W, 33 dBm) @ GSM 900
Class 1 (1 W, 30 dBm) @ GSM 1800
Class E2 (0.5 W, 27 dBm) @ EDGE 900
Class E2 (0.4 W, 26 dBm) @ EDGE 1800
Class 3 (0.25 W, 24 dBm) @ UMTS
Class 3 (0.2 W, 23 dBm) @ LTE
America:
Class E2 (0.5 W, 27 dBm) @ EDGE 900
Class E2 (0.4 W, 26 dBm) @ EDGE 1800
Class 3 (0.25 W, 24 dBm) @ UMTS
Class 3 (0.2 W, 23 dBm) @ LTE
Antenna connector:
U.FL for cellular main antenna
U.FL for cellular diversity antenna
External antennas: +5 dBi
This module can carry out the following tasks:
Sending/Receiving SMS
Multisocket up to 6 TCP/IP and UDP/IP clients
TCP/IP server
TCP SSL
HTTP service
FTP service (downloading and uploading files)
Sending/receiving email (SMTP/POP3)
Certifications:
LE910-EUG (Europe / Brazil): CE, GCF, ANATEL
LE910-NAG (US / Canada): FCC, IC, PTCRB, AT&T approved
LE910-SKG (South Korea): KCC, SK Telecom approved
LE910-JN V2 / LE910-JK V2 (Japan): NTT DoCoMo, KDDi
This model uses the UART1 at a baudrate of 115200 bps to communicate with the microcontroller.
Related API libraries: Wasp4G.h, Wasp4G.cpp
All information about programming and operation can be found in the 4G Networking Guide.
All the documentation is located in the Development section of Libelium website.
A rechargeable battery must be always connected when using this module (USB power supply is not enough).
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