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tinySniff

tinySniff is an environmental sensor HAT that stacks onto the tinyCore ESP32-S3. It carries three Winsen MEMS gas sensors (hydrogen sulfide, carbon monoxide, and methane) plus a buzzer and a button, so you can build something that notices a gas and then does something about it.

It ships with four demo programs: a live serial plotter, an SD card logger, a Google Sheets uploader, and an SMTP alarm that emails or texts you when a level goes high.

In This Section

Section titled “In This Section”
  • Overview, how the sensors work, assembly, and what to expect from the readings
  • Pinouts, pin assignments for the three sensors, the buzzer, and the button
  • Example Code, all four demo programs, ready to flash