AMB01 DHT + MQTT - Realtek Ameba RTL8195 demo#003

This video demonstrates how an IoT-ready device (Ameba RTL8195) is applied in real-life scenarios. Temperature and humidity are 2 of the most important factors affecting people’s comfort level in an enclosed space. The DHT humidity and temperature sensor can read the ambient temperature and humidity every 2-3 seconds fastest, and then pass the data to Ameba who will forward them to the server using MQTT protocol. Whoever “subscribing” to the right topic gets the data almost instantaneously. Users can then adjust the aircon mode or temperature according to the readings received.

Of course, this is only one of the applications, or maybe the simplest among everything else. If you are interested to develop even further, you may link the sensor readings to a small program which help you automatically set the aircon to the right setting. Alternatively, you may also put this sensor partially into the soil where plants/vegetables are grown to monitor the soil’s humidity level and decide whether the plant/vegetable should be watered.

The DHT sensor updates its data every 10 seconds to stay as accurate as possible. Once sensor data is received, Ameba then “publishes” the data to the MQTT server where all clients “subscribing” to the right topic gets the data displayed on the console. If you are interested in doing it yourself, please refer to our GitHub page for further details.

You are also more than welcome to join our online community to meet more makers, or raise a question you are facing in your own DIY project.

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