This tutorial assumes that you have some basic electronics experience, can experiment with Arduino, and have some basic ... Here, a standard light-dependent resistor (LDR) is used as an analog input ...

In the microcontroller era today, Arduino is ... Here an LDR (Light Dependent Resistor) is used to measure the light level. The alarm system is triggered when a “Logic High (H)” level signal is ...

This tutorial will guide you through the process of building a tachometer around an Arduino. Tachometers are ... would have been to use a reflectance sensor which allows to for the transmitter ...