Invidious

UART for Beginners

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Lonely Binary | 12 videos | Updated 2 days ago
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A beginner course on UART, the serial port every board has: two wires, no clock, a start bit, data bits, baud, sampling, buffers, errors, flow control, voltage levels and your ESP32. 12 short films, one per lesson. Lessons in 3D and VR: learn.lonelybinary.com/fundamentals/uart

2:18

UART explained: two wires and no clock

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1:53

UART explained: the line idles high, and a start bit is low

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1:39

UART explained: the low bit goes first

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1:46

UART explained: parity misses two flips (stop bit, parity and 8N1)

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1:46

UART explained: baud, and why 115200 baud is not 115200 bytes a second

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1:30

UART explained: why the receiver samples in the middle of each bit

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1:35

UART explained: why a printer prints rubbish when the settings disagree

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1:21

UART explained: the receive buffer, and why bytes are lost when it fills

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1:31

UART explained: an error flag says what happened, not why

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1:50

UART explained: a data byte can say stop

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1:48

UART explained: not a voltage standard

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1:44

UART explained: check the wires, the ground, the speed and the volts

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