User's Manual
Table Of Contents
- About This Document
- Table Index
- Figure Index
- 1 Introduction
- 2 Product Concept
- 2.1 General Description
- 1.1 Simplified Block Diagram
- 1.2 Features and Application
- 1.3 Evaluation Board
- 1.4 List of Applicable FCC Rules
- 1.5 The Specific Operational Use Conditions
- 1.6 Limited Module Procedures
- 1.7 Trace Antenna Designs
- 1.8 Antennas
- 1.9 Label and Compliance Information
- 1.10 Information on Test Modes and Additional Testing R
- 2 Pin Definitions
- 3 Technical Specifications
- 4 Application Interface
- 5 Application Function
- 6 Data Business
- 7 Mechanical Dimensions
- 8 Appendix
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indicates the current network access trigger mode, 1 indicates automatic trigger, and 0
indicates manual trigger.
For more detailes description of the instructions, please refer to the AT instruction manual.
5.5 Warm Boot
The warm boot function is used to save the LoRaWAN session context. When the warm boot
function is enabled, the module automatically saves the session context parameters to the
EEPROM every time the Join succeeds and sends upstream data. When the module is
powered on or reset, it directly this parameter is taken out from the EEPROM, so there is no
need to repeat the Join operation.
When used in the following scenarios, the warm boot function can be enabled:
For applications where the deployed network is relatively stable and the device may be
powered off frequently;
Or the application that can send data immediately after the module is powered on or
reset again
To enable the hot start function, the operation example:
AT+HOTS=1
OK
AT+SAVE
OK
If you need to update the session context, you can first delete the content of the session
context, and then restart the JOIN instruction, as in the following example:
AT+JOIN=0
OK
AT+JOIN=1
OK
5.6 DIO Function
The DIOx (x = 0 ~ 15) port pins of the module can be configured as ordinary IO functions or
as peripheral functions, and some pins can be used as signal indication functions. The pin
function is configured through the + DIOx instruction, the following operation example: