​Design of system

A project log for Low cost Air Quality sensor

Implement a PM 2.5 sensor with Internet and Twitter connectivity to track air quality with a low cost device. 06/14/2017 at 02:340 Comments

This version includes a Fan added to the PPD42N sensor to increase the air flow, a 10K resistor from pin 5 of the sensor to GND to improve measure accuracy and the addition of sensor SHT1x to measure humidity and temperature.