Wiki source code of How to use Domain Name instead of IP address in Server Address
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4.2 | 2 | (% style="color:blue" %)**Note when using MQTT:** |
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1.3 | 3 | ))) |
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4.4 | 6 | 1）**AT+CLIENT **cannot be set to NULL |
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4.4 | 10 | 2) **AT+SERVADDR** length should not exceed 21 bytes |
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1.2 | 14 | 3) It is not recommended to use a domain name, as it will take a long time for the MQTT service to resolve the domain name for the first time and increase power consumption. It is recommended to use IP instead of domain name. |
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1.3 | 17 | ))) |
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4.4 | 20 | If you don't know the domain name IP, you can enter the command **AT+QNDS **to resolve the domain name when it is not working (this process may take a long time) |
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4.2 | 23 | (% style="color:blue" %)**Example:** |
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| 25 | [[image:image-20220722171355-1.png]] | ||
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