This project uses a simple LDR that is calibrated against a reference photometer in order to build a digital lux meter. This project uses a simple LDR that is calibrated against a reference photometer ...

Here, we are designing a simple light activated switch circuit using LDR. It can be used in security applications like when there is darkness on the LDR, it stops lighting. The main principle of this ...

Like many of us, [Bas] firmly believes that repetitive tasks should be automated, and that includes the controls of the famous T. Rex. Since the cacti are always dark gray and appear along the same ...