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SIM900 AT commands
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| # Basic Checks | |
| AT+COPS? // Show network operator | |
| AT+COPN // All network operators | |
| # SMS | |
| AT+CMFG=1 // Enable txt mode SMS | |
| AT+CMGS="+NUMBER" // Start SMS to this number, end in 0x1a (no newline) | |
| AT+CMGR=1 // Receive and read SMS | |
| AT+CMGD=1 // Delete this SMS message | |
| # Short GPRS commands (lots of wait states between commands) | |
| AT+CIPSHUT | |
| AT+CIPMUX=0 | |
| AT+CGATT=1 | |
| AT+CSTT="internet.fido.ca","fido","fido" | |
| AT+CIICR | |
| AT+CIFSR | |
| AT+CIPSTART=”TCP”,”52.206.151.197″,”1000” | |
| AT+CIPCLOSE | |
| AT+CIPSHUT |
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