• Sensors
  • W1209 Temperature Control Switch

    Hello-Hello. I just got this W1209 temperature control switch and wanted to document all the online / offline notes properly. Let’s have fun! The W1209 is a low cost thermostat controller which lets you control power to most types of electrical devices based on the temperature sensed by NTC temperature sensor.  Relay contats to heater/cooler […]

  • Arduino
  • Guide for Dust Sensor with Arduino

    GP2Y1010AU0F or Sharp PM2.5 Dust Sensor consists of an Infrared Emitting Diode and Phototransistor ( which we are going to discuss shortly ) which detects the reflected light of dust in air and is efficient in detecting fine particles. It is compact with low consumption current ( max of 20mA ). It is commonly used […]