Got the Pulse_sensor_source_file folder and then open the Arduino Library folder copy the Timerone folder Go to the Document folder of your computer, open the arduino folder and then open library ...

Will not be affected by the type of liquid. Can detect the liquid level of boiling water Strong compatibility penetrates all kinds of non-metallic containers or pipes such as plastic, glass, ceramic, ...

Abstract: We connected $\mathbf{p H}$ sensor and solar cell into Arduino Board to control data transmission via red laser communication or popular known as visible light communication (VLC). The ...