Abstract
In Chapter 6 we saw that being able to hook up our experiments to the Internet has the potential to greatly enhance our data science toolkit. In Chapter 7 and Chapter 8 we looked to see if the functionality on board the micro:bit could connect us to the cloud, to give us access to the services available there. Although both BLE and the micro:bit radio provide some really useful wireless functionality, we are still no closer to connecting properly to the IoT than we were several chapters ago. It is time to look beyond the native functionality of the micro:bit.
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Notes
- 1.
Most people agree that the acronym Wi-Fi originates from the phrase “Wireless Fidelity.” In fact Wi-Fi is a trademarked term for IEEE 802.11x, which is a standard for wireless communication (as, of course, is Bluetooth). It differs from Bluetooth in the purposes for which it is best suited. Bluetooth is used over a shorter range to connect two devices together securely (e.g., to connect headphones to a mobile phone). Wi-Fi has a higher range and speed, consumes less power, and is designed to provide the communication network for the Internet.
For our purposes we can understand Wi-Fi as the means by which a smart device can share data wirelessly with the Internet.
- 2.
MQTT (Message Queuing Telemetry Transport) is a wireless communication standard. It is not a competitor to Wi-Fi (or Bluetooth): it is a standard that applies to messages sent using Wi-Fi. It is enough for our needs to know that most IoT platforms will be MQTT compliant. If you know how to connect to one MQTT IoT platform, then you should be able to connect to others.
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© 2020 Philip Meitiner, Pradeeka Seneviratne
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Meitiner, P., Seneviratne, P. (2020). Using Wi-Fi to Connect to the Internet. In: Beginning Data Science, IoT, and AI on Single Board Computers. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4842-5766-1_9
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DOI: https://doi.org/10.1007/978-1-4842-5766-1_9
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