Differences
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| en:iot-open:practical:hardware:sut:stm32:iot_3 [2024/04/27 08:09] – [Steps] ktokarz | en:iot-open:practical:hardware:sut:stm32:iot_3 [2024/04/27 09:42] (current) – ktokarz | ||
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| Line 85: | Line 85: | ||
| In our case, the command can look like this: | In our case, the command can look like this: | ||
| < | < | ||
| - | AT+MQTTUSERCFG=0, | + | AT+MQTTUSERCFG=0, |
| </ | </ | ||
| Line 100: | Line 100: | ||
| The command can look like this: | The command can look like this: | ||
| < | < | ||
| - | AT+MQTTCONN=0, | + | AT+MQTTCONN=0, |
| </ | </ | ||
| Line 116: | Line 116: | ||
| === Step 3 === | === Step 3 === | ||
| - | Implement the MQTT configuration and connection to the broker. Use the template for the " | + | Implement the MQTT configuration and connection to the broker. Use the template for the " |
| === Step 4 === | === Step 4 === | ||
| Line 122: | Line 122: | ||
| ==== Result validation ==== | ==== Result validation ==== | ||
| - | You should be able to connect to the WiFi and MQTT broker (verified by the status present on the selected display) and then publish a message (once or periodically). Depending on whether you're fully remote or able to access our networks with an additional device, you need to implement a subscriber (as present in the scenario [[[en: | + | You should be able to connect to the WiFi and MQTT broker (verified by the status present on the selected display) and then publish a message (once or periodically). Depending on whether you're fully remote or able to access our networks with an additional device, you need to implement a subscriber (as present in the scenario [[[en: |
| + | <note info> | ||
| + | Because LCD can't properly display some non-visible characters the presented code sometimes shows additional, non-letter characters. It is out of the scope of this scenario to filter these characters out. We leave the task of making visual improvements to your invention. | ||
| + | </ | ||
| ===== FAQ ===== | ===== FAQ ===== | ||
| - | **Can I change the IP address?**: Normally IP addresses are assigned by the server known as DHCP. In some situations, | + | **Can I publish messages on different topics?**: Certainly |
| + | **My MQTT client disconnects randomly**: The most common reason | ||
| + | **Do I need to authorise to publish and subscribe? | ||
| <WRAP noprint> | <WRAP noprint> | ||
