yesterday I wrote about my first experiments with the HC-05 Bluetooth module to create a sort of serial gateway that would allow the KX3 to wirelessly be attached to an iOS device.
As I expected there are strict limits on the Bluetooth profile that can be used on iOS and serial streaming is not allowed.
But there’s an even more interesting solution now that is BLE that stands for Bluetooth Low Energy that is a technology that is part of Bluetooth 4.0
BLE is becoming more and more popular because it easily permits pairing of a lot of devices using very low power. For example I personally use a Fitbit Flex that is a sort of advanced step counter as well as a TomTom Runner GPS clock. They both use BLE and most of the “health” devices (bracelets, clocks, cardio, etc.) use BLE.
So BLE is supported by all the mobile devices with Bluetooth 4.0 and that is true for Android and iOS as well.
That mean that using BLE I’ll be finally able to build a small cheap box allowing the KX3 to be paired to modern iOS devices as well.
I just ordered two small boards to start development and testing. One is based on the Texas Instrument CC2540 that is a micro controller that I’m actually using for my “day job” to develop a portable ECG. That’s good so developing for the app will also be useful for the day job and vice versa!
I’ll keep you updated on that side as this is something that can really open new possibilities.
72/73, Andrea IU4APC