The SDS011 sensor measures the amount of small polluting particles in the air. It uses a tiny laser to measure the total mass in micrograms per cubic metre of air of two sizes of particles. Called Particulate Matter (PM), one size (PM2.5) has a diameter of 2.5micrometres or less; and the other (PM10) has a diameter of 10 micrometres or …
The DF Robot Heart Rate Monitor is a thumb-sized sensor that detects the change in blood volume just under the skin and sends either an analogue or digital signal to the connected Kookaberry. There is a small slide switch which changes the output a square digital wave (the default position) to an analogue wave. The Kookaberry Pulse app has been …
