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Recent content by ethanhe

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    Help!!! Based on SIM900, what's the difference between TCP and Http post method

    Hello everyone, I want to send data from SIM900 module to a webserver, but now I am confused about the TCP and HTTP AT command of SIM900. I don't know which way is the correct. If I use TCP method, then to establish a TCP connection, AT+CIPSTART="TCP","XX.XX.XX.XX","6789" is enough, then by...
  2. E

    searching for a certified GSM/GPRS module for M2M device

    Hello everyone, I am looking for a certified GSM/GPRS module for M2M device. Quadband GSM compatibility (850, 900, 1800, 1900 MHz) is required. Another qustion is that if the M2M device is sold in different countries, whether the integrated device need to be certified for each country...

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