SIM808 GSM GPRS GPS BT Development Board Module Geekcreit for Arduino - products that work with official Arduino boards

SIM808 GSM GPRS GPS BT Development Board Module ForDescription:SIM808 a new generation of GSM, GPRS, GPS, bluetooth (optional)SIM808 GSM GPRS module is a four frequency for the castle hole encapsulation. Its performance is stable, compact appearance, high cost performance, which can meet the various needs of customers.SIM808:SIM808 working frequency for GSM/GPRS / 1800/1900 850/900 MHZ, can realize low-power transmission of voice, SMS and data information.Features:The four frequency MHZ 850/900/850/900SMSFTP/HTTP, embedded TCP/UDP protocolDTMF detection, bluetooth 3.0 (optional), USB interfaceSIM808 shields hardware:Power interface support 5-20V voltage input, pay attention to the voltage of 5-9V, can provide not less than 2 a power adapter current.1. Can choose to use through the jumper cap hardware serial port (D0 D1) or software serial port (D7 D8).2. Support the MICRO SIMCARD.3. Support four headphone jack (I type).4. Update SIM800C firmware support via USB or serial port.5. Can be upgraded to a bluetooth version of the development board.6. Onboard TVS diode, SIM card protection IC, two 100 uf tantalum capacitors and so on a variety of ways to make the stable development board performance.7. Support the lithium battery (3.6-4.2 V) For TTL level serial communication interface. Fully compatible with the and compatible with other 5 V, 3.3 V, 2.85 V system.SIM808 shields software:By TTL level a serial port communication with external systems, the default is communicated with