Today I will tell you how to choose the overseas 4G module, I will give the advantage to post as a reference. Have been abroad know that foreign 4G network conditions are really let a person powerless to spit, do overseas equipment friends, it is time to understand the Air780EEN/EEU/EEJ series of overseas modules - integrated vSIM function, maximize the solution to the problem of stability of overseas networking.
I. Description of Air780EEN/EEU/EEJ core information
Air780EEN/EEU/EEJ
- AT Instruction Pinout -
▼ For more information, see ▼
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Second, Air780EEN/EEU/EEJ real network power consumption data
Air780EEN/EEU/EEJ series overseas modules, the latest test data of real network power consumption is detailed:
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▼ Power Consumption Test Environment ▼
Air780EEN/EEU/EEJ, supply voltage 3.8V, mobile network, band B3, RSRP value -88 neighborhood, DRX 2.56 seconds, heartbeat interval 5 minutes, heartbeat data 100Byte, TCP protocol, server, loopback test;
Air780EEN/EEU/EEJ, same environment, low power mode, 0.9mA average current at DRX 1.28 sec, 1mA average current at DRX 0.64 sec;
Air780EEN/EEU/EEJ, same environment, regular mode, 7mA average current at DRX 1.28 sec, 7.2mA average current at DRX 0.64 sec;
DRX, Discontinuous Reception, can be simply understood as the interval between the module and the base station to keep the heartbeat, generally 0.64 sec/1.28 sec/2.56 sec. It should be noted that DRX is determined by the base station according to the actual situation of the network, and the module can't control it by itself;
Air780EEN/EEU/EEJ power consumption performance is ranked medium among the existing modules, with an average current of 0.5mA in low-power mode. The module model with the best low-power consumption performance is Air780EPS (domestic support only), please choose flexibly according to your needs.
III. Air780EEN/EEU/EEJ AT Directive
The 4G-Cat.1 module supports AT commands, and the list of core functions of AT commands is shown below:
IV. Frequently Asked Questions about Air780EEN/EEU/EEJ
01. What is the meaning of overseas vSIM supported by Air780EEN/EEU/EEJ?
vSIM, or virtual SIM:
It can be understood as a virtual card or soft SIM, the core is: no need to physically insert or remove the card, or physical patch card, the function of SIM card is realized by software inside the module.
02. Does Air780EEN/EEU/EEJ support C-SDK development?
Currently only AT commands are supported; C-SDK development is not supported, nor is the LuatOS development method.
03. Does Air780EEN/EEU/EEJ support FOTA function?
Air780EEN/EEU/EEJ supports FOTA function;
IoT platform, you can manage FOTA for each piece of module under the account to which it belongs; Air780EEN/EEU/EEJ supports differential upgrading, and can be upgraded by FOTA through the IoT backend.
04. Does Air780EEN/EEU/EEJ support passthrough?
Air780EEN/EEU/EEJ supports data passthrough function.
05. What is the relationship with Air780E/Air780EQ/Air780EP/Air780EPS?
The Air780EEN/EEU/EEJ are identical to the Air780E series package dimensions;
In terms of AT instruction functionality, the two series can be completely replaced by each other; however, there is a difference in power consumption performance and different regional markets.