As the first metal-oxide gas sensor featuring multiple sensing elements on one chip, the SGP30 provides more detailed information about the air quality. Download all the source files and open examples ...

Arduino Clock with Battery backup (real time clock), Time, Date, Alarm, Temperature, TM1638 seven segment module output and input, Display Sleep mode. V3.0 - Using NodeMCU ESP8266 for controlling ...

Based on your application, you can use any sensor as you want in place of the DHT11 sensor. For example, if you want to trigger an SMS alert when motion is detected, then you might opt for a PIR ...

Abstract: The following article presents preliminary research concepts on the analysis and prevention of pressure ulcers at different stages using a sensor-based system with the purpose of lowering ...