Category: The OR Logic Gate

With the Arduino AND Logic Gate built on the MakerShield, it is time to upload the sketch. Example 7-1 operates the green LED using a pushbutton switch and a photocell. Here are the steps you’ll need to take: The Arduino OR Logic Gate will turn on the LED when the photocell is covered or the pushbutton switch is…

You can build a digital computer OR Logic Gate circuit using the Arduino microcontroller and a few electronic components. The green LED turns on when either the pushbutton switch OR the photocell is TRUE. You can easily build the logic circuit using the Fritzing wiring diagram shown in Figure 7-6. You can build this basic digital computer circuit on…

The OR Logic Gate is another computer circuit providing a TRUE output based on at least one input data value having a closed state. A basic OR Logic Gate electric circuit schematic diagram is shown in Figure 7-2. The circuit schematic diagram on the left shows one pushbutton switch closed and the other one open. The output for this…

Figure 7-1. The assembled Arduino OR Logic Gate TECH NOTE When two or more electrical/electronic components are connected across one voltage source via separate paths, this is called a parallel circuit. In a parallel circuit, there are different ways that electricity can flow.

Two Pushbutton Switches in Parallel The OR Logic Gate is the final basic computer circuit used to make simple decisions with electrical input signals. The OR Logic Gate is different from the AND circuit because the two pushbutton switches are connected in parallel (instead of in series as with the AND circuit). The OR Logic Gate’s output decision is…