Yuga NB module hardware manual V1.01
Table Of Contents
- Chapter 1. Introduction
- Chapter 2. Review of modules
- Chapter 3. Interface application description
- Chapter 4. RF overall technical index
- Chapter 5. Electrical characteristics of interface
- Chapter 6. Structure and mechanical properties
- Chapter 7. Production and packaging
- Chapter 8. Terminology abbreviation
LPM2100 mg NB module hardware manual
Shang Hai YUGE Information Technology co., LTD
Page
23
of
39
Using the normally closed SIM card holder or the normally open SIM card holder, the
detection function can be set through the AT instruction. When AT+HOSCFG=1,1, the
SIM card is in a high state. When setting AT+HOSCFG=1,0, the SIM card is in a low
state, and when setting AT+HOSCFG=0,0, the SIM card hot plug function is closed.
"*" indicates that it is being developed.
3.8 ADC interface
LPM2100 mg module provides a 10-bit analog-to-digital conversion input interface,
which can realize external temperature monitoring, and can read ADC pin voltage through AT
command.
In order to improve the accuracy of ADC, ADC line should have a good reference.
Table 3-10 ADC signal definition
Pin
Pin name
IO
High level value
Remarks
9
ADC0
AI
General analog digital converter interface
3.9 SPI interface
The LPM2100 mg module provides a set of SPI interfaces with an interface voltage of
2.8V.
Table 3-11 SPI signal definition
Pin
Pin name
IO
Functional description
Remarks
3
SPI_MISO
DI
Host input slave device output
2.8V voltage domain
4
SPI_MOSI
DO
Host output slave device input
5
SPI_SCLK
DO
Serial clock signal
6
SPI_CS
DO
Chip Select