Introduction to the Photo Resistor (LDR) A photo resistor (LDR) will change it’s resistance based on the lighting we apply to this component. Also known as a Light Dependent Resistor, we use them in our every day life. We use photo resistors to energize night lights in our house. Furthermore, Read More »
Introduction to Hiding Objects When Logged Out For security reasons, there might be some objects on a display screen that you would like to hide until a particular user is logged in. This could be a temperature preset, or a timer preset that you don’t want a standard operator to Read More »
Introduction to the Operational Amplifier The Operational Amplifier (Op-Amp) is very versatile. We can use the Op-Amp to compare voltages, or to amplify audio signals. By comparing voltages, we can build a voltage regulator circuit that is controlled by transistors. When using the op-amp as an amplifier, Read More »
Introduction to Capacitance Capacitance opposes a change in voltage. The unit for a capcitor is a “Farad”. We use capacitors to filter the “ripple” effect when converting AC to DC. We will also use capacitors in resonator circuits, such as a tuner for an AM or FM radio. Read More »
