3.5-4.2V, suitable for lithium battery power supply. The computer can debug USB-TTL. Suitable for portable. Two sets of antenna
SMA ports, GPS and GSM antennas are provided. Two sets of IPX ports are convenient to be embedded in the aluminum box to
lead out the antenna. 1 TTL serial port, GPS and GSM functions can be switched at will. It can realize GPS positioning, SMS,
data and other functions, standby at 80MA{average value}. Sleep data can be provided, and power consumption is about 10MA.
With voice and microphone interface. It belongs to 4 channels and is available worldwide.
SIM808_mini board uses high-performance industrial grade GSM/GPRS quad-band chip, and integrates GPS and
Bluetooth functions: SIM808, working frequency band: GSM850/EGSM900/DCS1800/PCS1900MHz. Can realize telephone
voice, SMS (short message, MMS), GPRS data transmission function (support transparent transmission mode, domain
name resolution and IP mode), also has DTMF decoding (can identify the other party's keys), GPS positioning, the
upgraded version also supports Bluetooth 3.0 . The hardware is upgraded on the basis of the design of the hardware
manual, using a low-ripple LDO power supply, and the SIM card uses a gold-plated deck for better sensitivity. Module application areas: remote communication equipment such as remote monitoring, remote smart meter reading,
smart home and vehicle equipment
Bluetooth functions: SIM808, working frequency band: GSM850/EGSM900/DCS1800/PCS1900MHz. Can realize telephone
voice, SMS (short message, MMS), GPRS data transmission function (support transparent transmission mode, domain
name resolution and IP mode), also has DTMF decoding (can identify the other party's keys), GPS positioning, the
upgraded version also supports Bluetooth 3.0 . The hardware is upgraded on the basis of the design of the hardware
manual, using a low-ripple LDO power supply, and the SIM card uses a gold-plated deck for better sensitivity. Module application areas: remote communication equipment such as remote monitoring, remote smart meter reading,
smart home and vehicle equipment
Onboard resources
1 GPS antenna interface, SMA interface, can be connected to active antenna (default), or passive antenna
1 way GSM antenna interface, SMA interface
1 Bluetooth antenna interface, SMA interface
1 voice interface, one microphone interface
1 high-efficiency LDO power supply, the input voltage is 5--12V (recommended value). Note that when the
input voltage is less than 9V, please ensure that the power supply can provide 2A current. Another power supply
port 3.5--4.2V input (suitable for lithium battery power supply) 1 TTL level interface, fully compatible with 5V 3.3V 2.85V level system 1 way USB interface, convenient to update SIM808 ancient sword All important pins of the chip are led out.
input voltage is less than 9V, please ensure that the power supply can provide 2A current. Another power supply
port 3.5--4.2V input (suitable for lithium battery power supply) 1 TTL level interface, fully compatible with 5V 3.3V 2.85V level system 1 way USB interface, convenient to update SIM808 ancient sword All important pins of the chip are led out.
Use
Insert a Unicom or mobile SIM card Insert GPS antenna, GSM antenna, Bluetooth antenna (you can choose to access the antenna
according to your application) For computer debugging, please connect the USB-TTL module; for microcontroller control, please connect
to the serial port of the microcontroller Connect the power adapter Long press (about 2 seconds) start button Ready to start debugging
Insert a Unicom or mobile SIM card Insert GPS antenna, GSM antenna, Bluetooth antenna (you can choose to access the antenna
according to your application) For computer debugging, please connect the USB-TTL module; for microcontroller control, please connect
to the serial port of the microcontroller Connect the power adapter Long press (about 2 seconds) start button Ready to start debugging
Provided MCU C program (STC12/15/89, STM32 series):Call program
1. Make a call to the designated phone number; 2. Answer the calls dialed into the module;
1. Make a call to the designated phone number; 2. Answer the calls dialed into the module;
Send SMS program
1. Send an English text message to the designated phone number; 2. Send a Chinese text message to the designated phone number; 3. Control several LED lights via SMS;
1. Send an English text message to the designated phone number; 2. Send a Chinese text message to the designated phone number; 3. Control several LED lights via SMS;
TCP/IP program
1.GPRS_TCP program (server address is IP address); 2.GPRS_TCP program (server address is domain name); 3.GPRS_UDP program (server address is IP); 4.GPRS_UDP program (server address is domain name); 5. GPRS transparent transmission mode program;
1.GPRS_TCP program (server address is IP address); 2.GPRS_TCP program (server address is domain name); 3.GPRS_UDP program (server address is IP); 4.GPRS_UDP program (server address is domain name); 5. GPRS transparent transmission mode program;
