Smart Tillandsia Care

The air plant sanctuary lit at night, NeoPixel rings glowing blue through the glass

A compact, slightly over-engineered habitat that keeps a colony of tillandsia alive on a schedule instead of on my memory.

Air plants take their water from the air, which means they want misting rather than watering — and they want it often enough that a person will inevitably forget. So the vase does it: a tiered sensor array reads the environment, a piezo atomizer mists on a cycle, a submersible pump handles the reservoir, and an OLED and a pair of NeoPixel rings report what is going on. It publishes to the cloud so I can check it from anywhere.


Built from

  • Particle Photon 2
  • SparkFun BME280 atmospheric sensor
  • Grove capacitive soil moisture sensor
  • Grove air quality sensor v1.3
  • SSD1306 OLED display
  • 5 V submersible pump and a piezo atomizer with oscillator board
  • Grove optocoupler relay (M281)
  • Two NeoPixel WS2812 rings
  • Custom gravel dish, designed and printed to fit the vase

Platform — Particle, Adafruit IO, Seeed Studio, SparkFun
Year — 2026

This idea is twenty-one years old. In 2005 I drew a conceptual design for an indoor irrigation system — a green interior that waters itself, with a valve and a timer worked out in watercolour. This vase is that drawing, built.