Embedding Code from GitHub

How to reference and display code from your repositories in Jekyll pages.

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Link to a file

[View the Arduino code](https://github.com/bi2air/advanced-bioreactor/blob/main/bioreactor.ino)

Link to a specific line: append #L42 or a range #L10-L20.

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Embed a code snippet

Copy relevant sections and attribute the source:

// Source: https://github.com/bi2air/advanced-bioreactor
float readPH() {
  int sensorValue = analogRead(PH_PIN);
  float voltage = sensorValue * (5.0 / 1024.0);
  float pH = 3.5 * voltage + CALIBRATION_OFFSET;
  return pH;
}

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Raw file URLs (for downloads)

Format: https://raw.githubusercontent.com/USER/REPO/BRANCH/path/to/file

[Download dataset](https://raw.githubusercontent.com/bi2air/air-quality-analysis/main/data/sample.csv)

Works for CSV, JSON, images, or any file you want users to download directly.

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Link to Jupyter notebooks

[PM2.5 Analysis](https://github.com/bi2air/air-quality-analysis/blob/main/notebooks/pm25_analysis.ipynb)

For rendered viewing: use nbviewer.org prefix.

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Quick reference

Target	URL pattern
File	github.com/USER/REPO/blob/BRANCH/path
Raw file	raw.githubusercontent.com/USER/REPO/BRANCH/path
Line	append #L42
Line range	append #L10-L20
Repository	github.com/USER/REPO