Sensors and Diagnostics is a gold open-access journal publishing innovative and high-impact research on sensing technologies and diagnostic systems. The journal focuses on studies that explore novel ...

Chances are if you’ve spent any time with repair information, you’ve come across the code chart, especially the emissions ...

Based on cheap standard ESP8266 (and ESP32) boards programmed in Arduino IDE 1+ year operation on 1200mAh or 18650 battery For-ever operation with a small solar panel (80x55mm) ESP-Now receiver ...

Default value for maximum measurement distance is 4m, since HC-SR04 sensor can't measure reliably beyond that. However, if you are using another sensor or if you you don't care about distances larger ...