There are no reviews yet.
Your email address will not be published. Required fields are marked *
Your review *
Notify me of new posts by email.
The PIR Sensor detects motion by measuring changes in the infrared (heat) levels emitted by surrounding objects.
The Vibration module based on the vibration sensor SW-420 and Comparator LM393 to detect if there is any vibration that beyond the threshold. The threshold can be adjusted by the on-board potentiometer.
The DHT-22 is a low cost humidity and temperature sensor with a single wire digital interface.