A wearable infant safety monitor

The brief

Design and prototype a wearable device that detects when an infant is in a hazardous position or overheating.

What I did

The prototype combines a DHT20 temperature and humidity sensor and an FSR402 force-sensitive resistor with decision logic on an Adafruit microcontroller, housed in a textile wearable.

The main design constraints were comfort, low power use and keeping false alarms low. A monitor that raises frequent false alarms is likely to be switched off, so the detection thresholds were set with that in mind.

Result

A working textile prototype.