As Jeremy Sauget mentioned, today (21/02) we worked in the design of a PCB based on the STM32F103CB microcontroler, I was responsable for SPI port, it was quite simple compared to the others schematics, I just needed to add a protective resistor in the MISO (Master in slave out) pin to protect the external device if the master starts to think this pin is an output instead of input.
On Friday I am going to do a presentation about Wireless Communication. Today I studied about Bluetooth trying to get the important points to everybody. Limitations, advantages, how is the controller interface, structure, classification, what is necessary to be done in software/hardware, licence, where to find official specification, etc.
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