SIM808 Module GPS GSM GPRS Quad Band Development Board

SIM808 Module GPS GSM GPRS Quad-band Development Board ForFile download: Program provided (STC12/15/89, STM32 series):Make a callAnswer the phoneSend text format SMSSend Chinese SMSReceive SMS control LED lightGPRS_TCP program (dynamic IP)GPRS_TCP program (domain name)GPRS_UDP program (dynamic IP)GPRS_UDP program (domain name)GPRS transparent transmission mode programComprehensive functional demo program (STM32)Comprehensive functional demo program (STC12)Comprehensive functional demo program (STC15)bluetooth test program (PPS service, bluetooth serial)bluetooth phone control LED lightGPS test programFeature:Power supply: 5-18VComputer debugging USB - TTLIt contains a set of cell phone lithium battery power connectorIt contains three LED indicators, easy debuggingIt contains a Micro SIM card holderWith a set TTL serial port, compatible 2.85V, 3.3V, 5v systemIt supports text messaging, phone, GPRS data, GPS, HTTP protocol, DTMF decoder, MMS, recording function, etc.Package includes:1 x SIM808 Module1 SIM card installation diagram2 Lithium battery interface3 SIM card protection IC4 Micro SIM card5 Other control interface6 Mic voice terminal7 USB interface ( for upgrade use only, the default is not soldering)8 Tantalum capacitor9 TTL output high level selection (default 5V)10 TTL level matching circuit11 GSM IPX antenna interface12 5V power supply and serial interface13 TVS pressure pipe14 bluetooth antenna interface (the default is not soldering)15 LDO power supply16 LED light17 GPS antenna power supply circuit18 GPS antenna interface (default connect with active antenna)The module basic through the serial port to send AT commands to achieve control, use this module only requires a power supply and a serial port.Control module method:

GSM / GPRS Feature
Band	GSM850, EGSM900, DCS1800, PCS1900. SIM808
Transmit power	Class 4 (2W) at GSM850 and EGSM900
	Class 1 (1W) at DCS1800 and PCS1900
GPRS transfer rate	GPRS data downlink transmission: max.85.6 kbps
	GPRS data uplink transmission: max.85.6 kbps
SIM card interface	1.8V, 3V support 2G / 3G / 4G Mobile Unicom card
Serial port	Supports automatic baud rate recognition: 1200bps to 115200bps
GPS Feature
Horizontal accuracy	<2.5m
Speed ??accuracy (DGPS)	0.05m / s
Acceleration accuracy (DGPS)	0.05m / s2
Timing accuracy	10ns
Power consumption	42mA (3.8V@-130dBm, GSM IDLE)
bluetooth feature	Integrated AT command control
	Fully compliant with bluetooth 3.0 + EDR
	Fully integrated PA, provides an output power of 10dbm
	It supports up to four channel active ACL link
Basic Parameter
Voltage range	Normal voltage: 5-18V
	Polarity voltage: 5-26V
Lithium battery interface voltage	3.4V-4.4V
Power consumption	Depending on the needs assessment function, recommended using power supply 12V1A
Temperature range	Operating temperature: -40 ° C to + 85 ° C
	Storage temperature: -45 ° C to + 90 ° C
Size	50 * 50mm