Now that we’ve covered the basics of Bluetooth mesh and also gone over how to run a simple example on the nRF52 platform, it’s time for us to dig deeper into the source code of each type of device/node involved in a mesh network. If you missed the previous posts in this series, you can find them all here: Bluetooth mesh tutorial (part 1): covering the basics as well as some of the different terminologies such as Nodes, Elements, States, Properties, Messages, Addresses, Publish/Subscribe, and Managed Flooding. Bluetooth mesh tutorial (part 2): covering terminologies such as Models, Scenes, Relay nodes, Proxy nodes, Friend nodes, Low power nodes, and the architecture of Bluetooth mesh. Bluetooth mesh tutorial (part 3): covering the concept of Provisioning and how security is handled in Bluetooth mesh. Bluetooth mesh tutorial (part 4): covering the…

In the last post in this series on Bluetooth mesh (found here), we provided a high-level overview of the nRF5 SDK for Bluetooth mesh. We also listed the different examples provided as part of the Nordic SDK. The most complete of these examples is the lighting example, and this is the one we’ll go forward with demoing and explaining. In this week’s post, we’ll go over building and running this example and understanding the different parts within it. In the upcoming posts, we’ll get into the details of the source code for each device. Here’s a diagram showing the network and the devices we’ll be using within it:   Hardware and Software Requirements The different hardware devices required in this example include: Two nRF52 boards…