USB to serial adapter equipped with BEE (20pin 2.0mm) sockets. With integrated FT232 IC, It can be used for programming or communicating with MCU applications. On the other hand, you may connect your PC to various wireless applications via the BEE compatible modules.
Features
Reset button for BEE modules
3.3V and 5V dual power output
3.3V and 5V IO compatible
USB 2.0 protocol
BitBang mode ready
Application
USB Serial adapter to communicate with TTL/CMOS level Serial devices
Programmer for Arduino and compatible boards
USB Adapter of BEE modules for PC wireless function
The SIM900 is integrated with the TCP/IP protocol; extended TCP/IP AT commands are developed for customers to use the TCP/IP protocol easily, which is very useful for those data transfer applications.
Features:
Power supply : 9-12V DC 2A , Voltage output 3.7V (for Microcontroller)
Frequency Bands: GSM 850,EGSM 900, DCS 1800, PCS 1900. The SIM900 can search the 4 frequency bands automatically. The frequency bands also can be set by AT command. Compliant to GSM Phase 2/2+