There's some if/else statements set up to tell the Arduino what to do if different buttons are pressed as well as to set it up with "frequency = 0" in situations when none of the buttons are being pressed. You'll also notice that the code features two other bits of code. The "frequency" component of the tone function is what can be thought of as "the sound" that is being produced by the buzzer. The third component (duration) is optional, while the other two are necessary for the buzzer to function. Duration (the duration of the sound given in milliseconds)īasically, it looks like this: tone(pin, frequency, duration). Frequency (the frequency of the sound in hertz).Pin (the pin that the piezo buzzer is connected to).The tone() function can be broken down into three parts: Though the idea of changing the sound of the piezo buzzer seems simple, it can be a bit overwhelming at first! I set the frequency to "0" instead.)Īnother wonderful reference for first-time users of the Piezo Buzzers can be found here. NoTone() (I didn't end up using this one. This makes them suitable for use in environments with high levels of electromagnetic noise.Low power consumption: Piezo switches consume very little power since they rely on the generation and detection of electrical charges rather than the continuous power supply.While writing out code for this project, I referenced information on a few specific types of functions: What are the benefits of piezo switches?Durability: Piezo switches have no moving parts, which makes them highly durable and resistant to mechanical wear and tear.High reliability: Since piezo switches do not rely on mechanical contacts, they are not susceptible to contact bounce or mechanical failures.Environmental resistance: The switches are designed to be resistant to environmental factors such as dust, moisture, and chemicals.Tactile feedback: The switches can be designed to provide tactile feedback, giving users a sense of confirmation when the switch is pressed.Fast response time: Piezo switches have a fast response time, typically in the microsecond range.EMI immunity: Piezo switches are immune to electromagnetic interference (EMI) since they do not rely on electrical contacts. Piezo switches can operate in harsh environments, as they are resistant to dust, moisture, and chemicals.These switches are commonly used in various applications where reliability, long lifespan, and resistance to environmental factors are important. They are also immune to contact bounce, a common issue with mechanical switches that can cause multiple signals to be generated from a single press. They are solid-state devices without any moving parts, which makes them more durable and resistant to wear and tear. This charge is then detected and used to trigger the switching action.Piezo switches offer several advantages over traditional mechanical switches. When a mechanical force or pressure is applied to the switch, it deforms the piezoelectric material, which generates an electric charge. The piezoelectric effect refers to the ability of certain materials to generate an electric charge in response to mechanical stress or pressure.In a piezo switch, a piezoelectric material, such as quartz or certain ceramics, is sandwiched between two metal plates. Piezo Switches Piezo switches, also known as piezoelectric switches, are a type of electronic switch that uses the piezoelectric effect to detect and generate electrical signals.
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