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Understanding Binary Data Transmission

See how text is encoded to binary bytes for transmission across serial lines, Bluetooth, and radio.

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Separate bytes by:

Text input

Binary output

01001000 01100101 01101100 01101100 01101111

5 characters5 bytes40 bits

Data Comms tips

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Serial communication (UART) sends data bit by bit. Text must first be converted to bytes, then transmitted as binary pulses — this tool shows the bytes.

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Arduino and microcontrollers communicate over serial in ASCII. "Hello " = 48 65 6C 6C 6F 0A in hex = 01001000 01100101 ... in binary.

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The newline grouping mode shows each character on its own line — useful for debugging character-by-character data streams.

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Copy the binary output in newline mode and paste it into your documentation or debugging notes to record exact byte sequences.

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Enter your data into the tool above. Everything stays local to your browser.

Proses

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

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Get your result instantly. Nothing is stored after you leave the page — complete privacy.

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Cwestiynau Cyffredin

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