COM GSM
SKU:M031-D
Description
COM GSM is a stackable 2G communication module, with the SIM800C communication module built-in. The working frequency of COM GSM is
GSM/GPRS 850/900/1800/1900MHz,and it can transmit SMS and data information with low power consumption. The module has a DC power
input and can provide 5V-12V power supply through an external power supply. In order to facilitate the user to configure the pins, the DIP switch
is used to set the pins. This module is especially suitable for remote meter reading, smart wearables, smart parking, municipal management and
other IoT industries with ultra-low power consumption and small size as the core requirements.
Notice
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When used with the FIRE main control, due to the PSRAM pin conflict, please switch the DIP switch pins of the
module base to TX(0/13), RX(5/15), and the device can use USB/ External DC is used for power supply.
When used with Core2 series main control, due to the different order of the base pin array, COM.X base pins TX(16),
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RX(17) correspond to the actual pins TX(14), RX of the Core2 main control (13) The equipment needs to use external
DC for power supply.
Note: When using the CORE2 or CORE2-FOR-AWS main control to drive the module, please use the DC power input of the
base and set the power mode to input mode (refer to the code below), otherwise it will not start normally
//mbus_mode_t:
//kMBusModeOutput: Use USB or battery power
//kMBusModeInput: Use external power supply 5V, or DC interface
M5.begin(true, true, true, false, kMBusModeInput);
//Initialize Serial according to the actual connected pins
Serial2.begin(115200, SERIAL_8N1, 13, 14);
The module base has a DC power input interface. Please strictly follow the input range (5-12V) to prevent damage to the module
when using this interface to connect to the power supply. The internal power DIP switch can adjust the voltage level of the internal
terminal VIN to adapt to different modules.
Product Features
Stackable design
Support SMS text and data transmission
Independent external power supply
AT command control
SIM card type: MicroSIM
Status signal: two LED indicators (power/network status)
Power supply voltage: 3.4-4.4V
Typical power consumption in sleep mode: 0.88mA
External antenna: SMA antenna 2.5dBi
Serial communication: UART 115200bps
Operating temperature range: -40°C to +85°C
Frequency band:
Quad-band 850/900/1800/1900MHz
GPRS multi-slot class 12/10
GPRS mobile station class B
data transmission:
PRS class 12: Maximum 85.6 kbps (uplink/downlink rate)
Support PBCCH (Packet Broadcast Control Channel)
Coding scheme: CS 1, 2, 3, 4
Integrated TCP/IP TCP/IP、UDP、HTTP、FTP protocol
Support USSD (Unstructured Supplementary Services Data)
Include
1x COM GSM module
1x SMA antenna
Applications
Remote meter reading system
Automatic Web Spider SMS-notifier
Wireless communication
Specification
Resources
Parameter
Frequency band
GSM/GPRS 850/900/1800/1900MHz
Network protocol
TCP/IP/UDP/FTP/HTTP etc.
Communication
UART 115200bps
Antenna Gain
2.5dB 1880-1900MHZ/2320-2370MHZ 2575-2635MHZ
DC interface specifications
5.5mm
Net Weight
40g
Gross weight
75g
Module Size
54*54*13.2mm
Package Size
165*60*36mm
EasyLoader
EasyLoader is a concise and fast program writer, which has a built-in case program related to the product. It can be burned to the
main control by simple steps to perform a series of function verification.
Download Windows Version Easyloader
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Download MacOS Version Easyloader
Description:
Power on to test signal quality and network access status
Related Link
Datasheet
SIM800C datasheet
AT Command
SIM800C AT Command
Schematic
PinMap
M5Stack
TX(GPIO0/13/17)
RX(GPIO5/15/16)
5V
GND
COM GSM
RX
TX
VIN
GND
MBUS PinMap
Example
Arduino
To get complete code, please click here
Last updated: 2020-12-23
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