![]() For the sake of brevity, we’ll explore two use cases that demonstrate the abilities of an entry level analyzer and then touch on additional capabilities of higher end analyzers. ![]() How to debug with Bluetooth analyzersīoth low and high end analyzers have many more features and functions than this blog post will cover. Higher end analyzers typically also have user-friendly software features that help developers traverse and filter through frames and time of transmission efficiently. As a result, higher end analyzers can be much more useful to capture all channel activity through their wide band radios. They lack the ability to sniff all transmissions that can occur on multiple channels simultaneously. Because the BLE traffic could occur on many different channels, basic analyzers may miss transmission. Using a lower-cost analyzer with Wireshark can be a great starting point for learning about BLE and uncovering initial bugs.ĭue to the complex configurations with BLE that arise from multichannel, central-peripheral, and client-server roles, a deeper analysis of the BLE transmission may be necessary to uncover the whole interaction. This can be useful for walking through scanning/advertising and the connecting process between two devices. At the base level, we can see specific devices are sending out packets with some product-meaningful data like Addressing Data. The standard Wireshark view presents a lot of information and helps get users out of the dark when it comes to seeing wireless transmissions. Popular options like this include nRF Sniffer for BLE, Ubertooth One, and Adafruit’s Bluefruit LE Sniffer. More common and lower entry analyzers utilize development boards or less expensive hardware platforms to provide packet sniffing abilities. If LightBlue is not providing the level of detail and analysis that is required to troubleshoot, then knowing what other analyzer features exist will help prepare you for when you need to find out what your BLE packets actually look like. A common starting point for most may be inspecting troublesome devices with a BLE phone tool like our LightBlue app (a basic analyzer in addition to a BLE actor). Well, like most things in life, there are many different options to choose from, with a varying range of capabilities across different analyzers. So the next time you run into a problem while developing with BLE, you just need to get an analyzer, right? ![]() Common points of failure in BLE communication: incorrectly defined advertising flagsĪppropriate central/peripheral designationį ailure to pair, bond, connect, or disconnect ![]()
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