Introduction - If you have any usage issues, please Google them yourself
GSM project to ATMEGA64 and PTM100 wireless module as the core, the design of a wireless module to control the remote business fully automatic blood coagulation analyzer, this module can send text messages, receive text messages, phone calls, SIM card phone balance query feedback, hospital consumption archive feedback, etc. Block using the knowledge of the AT command, EEPROM, FLASH, RAM data management, IIC communication, UNICODE encoding decoding, USB communication, as well as the company s internal special communication protocol agreed