| Gsm/GPRS Relay Controler by Atmega8 & Sim300 |
This project is a project by gsm/gprs modem, The sample code can control 3 relay, the status relay is stored in EEPROM , so status relay is back on power on.
Sample code can set or reset relay by SMS or GPRS connection, in sms mode you must first send 5 password then command to device, for example: if you send 12345s1 to device , 12345 is password & s1 is mean to set relay1 , so for ‘r1’ this command reset relay1, for get status of relay, you should send 12345gd , and for charge of sim 12345chxxxxxx, for change password: ‘oldpass’cp’new pass’
In GPRS mode, if you use GPRS , you need a valid IP, The protocol of connection is TCP/IP.
In program you disable or enable GPRS mode by sen sms.
You can edit or modified code for read ADC or READ port by sms or gprs, BUT you should GET LICENSE of ME.
you can download Schematic/PCB & Source code (bascom) here.
