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brentru 2023-02-24 16:12:02 -05:00
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source/includes/mqtt/_get_topic.md.erb
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@ -21,9 +21,9 @@ For any given Adafruit IO MQTT feed or group, subscribe to the appropriate topic
For example, let's imagine we have a device that subscribes to a counter feed: `uname/f/counter`. If we want to get the latest value, the `/get` topic we should publish to is `uname/f/counter/get`. After connecting to IO, subscribing to `uname/f/counter`, and publishing ` ` to `uname/f/counter/get`, we will immediately receive a message on our `uname/f/counter` subscription with the last value that was published to `counter`.
If you’re using the Adafruit IO Arduino library, you can add `/get` support to your project in one line of code:
If you’re using the Adafruit IO Arduino library, you can add `/get` support to your project using the following code snippet:
```cpp
```
// ... from the adafruitio_01_subscribe example sketch
AdafruitIO_Feed *counter = io.feed("counter");