While working on the iWRAP code library for the Bluegiga WT12, one of the issues I’ve come across is trying to create a good way to detect and manage active Bluetooth links. The iWRAP firmware, controllable entirely over a simple UART connection, has three different possible modes. As I mentioned in my last post about the Keyglove Kit board, the most efficient solution is to avoid the high-demand MUX mode and instead rely on regular DATA/COMMAND mode switching and active link detection using two GPIO pins.
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