Practice with oscill -
Interfaces
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UART - wide used serial interface. Many cellular phones, microcontrollers, PC's are equipped with it. Active level - low. Amplitude 3...5 V. Consist of start-bit, 5...8 info bits and 1...2 stop-bits. Speed from 150 до 921600 baud.
OBEX-packet "Connect", 9600 :
Incoming call "RING" - Ericsson mobile phone:
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