AVR平台上的gprs接收发送程序，功能强大-Gprs on the AVR platform to receive the sending program, and powerful

GSM/GPRS TTL -Modem from rhydoLABZ is built with SIMCOM Make SIM900 Quad-band GSM/GPRS engine, works on frequencies 850 MHz, 900 MHz, 1800 MHz and 1900 MHz. It is very compact in size and easy to use as plug in GSM Modem. The Modem is designed wi

AVR based GSM/GPRS Water Meter with keypad for user interface