Introduction - If you have any usage issues, please Google them yourself
This paper introduces the Siemens GSM wireless communication module TC35i, and TC35i module by the external circuit through the structures constitute a GSM Modem, PC machine through the serial data line to send AT commands, in order to achieve short message sending and receiving. TC35i described in detail the external circuit design, given the actual connection graph of the circuit and through the introduction of the PC-to TC35i write AT command in order to realize发短消息admission process.