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Smart Machine Smart DecisionBog'liq SIM800L Smart Machine Smart Decision
SIM800H&SIM800L_Hardware Design_V2.02 3 2015-07-27
Contents
Table Index................................................................................................................... 6
Figure Index ................................................................................................................. 8
Version History.......................................................................................................... 10
1.
Introduction........................................................................................................ 11
2.
SIM800H&SIM800L Overview........................................................................ 11
2.1.
SIM800H&SIM800L.......................................................................................................... 11
2.2.
SIM800H&SIM800L Key Features.................................................................................... 11
2.3.
Operating Mode ..................................................................................................................13
2.4.
Functional Diagram.............................................................................................................14
3.
Package Information ......................................................................................... 15
3.1.
Pin Out Diagram .................................................................................................................15
3.2.
Pin Description....................................................................................................................16
3.3.
Package Dimensions ...........................................................................................................18
4.
Application Interface......................................................................................... 20
4.1.
Power Supply ......................................................................................................................20
4.1.1. Power Supply Pin................................................................................................................................ 21
4.1.2. Monitoring Power Supply ................................................................................................................... 22
4.2.
Power on/off Scenarios .......................................................................................................22
4.2.1. Power on SIM800H&SIM800L .......................................................................................................... 22
4.2.2. Power down SIM800H&SIM800L ..................................................................................................... 23
4.2.3. Reset Function..................................................................................................................................... 25
4.3.
Power Saving Mode............................................................................................................26
4.3.1. Minimum Functionality Mode ............................................................................................................ 26
4.3.2. Sleep Mode 1 (AT+CSCLK=1) .......................................................................................................... 27
4.3.3. Wake Up SIM800H&SIM800L from Sleep Mode 1 .......................................................................... 27
4.3.4. Sleep Mode 2 (AT+CSCLK=2) .......................................................................................................... 27
4.3.5. Wake Up SIM800H&SIM800L from Sleep Mode 2 .......................................................................... 27
4.4.
RTC Backup........................................................................................................................27
4.5.
Serial Port and USB Interface.............................................................................................28
4.5.1
Function of Serial Port ........................................................................................................................ 29
4.5.2
Serial Interfaces................................................................................................................................... 30
4.5.3
Debug Interface................................................................................................................................... 32
4.5.4
Software Upgrade................................................................................................................................ 33
4.6.
RI Behaviors .......................................................................................................................34
4.7.
Audio Interfaces..................................................................................................................35
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