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.
When using with the FIRE main control, due to the PSRAM pin conflict, please switch the Module base DIP switch pin to TX(0/13), RX(5/15) when using it.
When used with Core2 series main control, due to the different order of the base pin array, COM.NB-IoT base pins TX(16), RX(17) correspond to the actual pins TX(14) of the Core2 main control ,RX(13).
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);
The DIP switch on the right is invalid for the GSM module, no need to set.
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||GSM/GPRS 850/900/1800/1900MHz|
|Network protocol||TCP/IP/UDP/FTP/HTTP etc.|
|Antenna Gain||2.5dB 1880-1900MHZ/2320-2370MHZ 2575-2635MHZ|