This project includes a full PPP/TCP/IP stack. It allows simple serial strings to control TCP and UDP sockets and ICMP pings. It supports connecting to dialup ISP's and most wireless GPRS/Edge networks. Lots of cool modules, CRC16, Autobaud Rate Detection, Real Buffered TCP, DNS Robust and highly compatible PPP, full flow control buffered serial, serial bootloader. Over 50K units have been deployed world wide. Can be built to run on a MEGA64 or MEGA128 and possibly other AVR chips. Full documentation including BOM, Manual, express PCB board. source code and schematics.
Moved to Github: