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What Are Light-Emitting Diode (LED) Light Guides

What Are Light-Emitting Diode (LED) Light Guides

Have you heard of light-emitting diode (LED) light guides? They are commonly used as backlighting solutions for keypads, human machine interfaces (HMIs), switches and other devices. While LEDs alone can be used as backlighting solutions, though, the addition of light guides maximizes their utility. To learn more about LED light guides, keep reading.

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The Rise of Piezo Switches: What You Should Know

The Rise of Piezo Switches: What You Should Know

When researching the different types of switches, you may come across piezo. Not all switches rely on moving parts. In addition to mechanical switches, there are piezo switches. Piezo switches are essentially touch switches that feature a piezoelectric panel.

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Piezo vs Capacitive Switches: What’s the Difference?

Piezo vs Capacitive Switches: What’s the Difference?

Switches are found in nearly all electronic devices. While some of them are mechanical, though, others are touch-based. Two of the most common types of touch-based switches include piezo and capacitive. They don’t feature moving parts like their mechanical counterparts. Like all touch-based switches, piezo and capacitive switches will open or close a circuit in response to physical contact with a finger or object.

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Pros and Cons of Resistive Touch Switches

Pros and Cons of Resistive Touch Switches

Have you heard of resistive touch switches? While not as popular as capacitive or piezo touch switches, they are still used in many devices. Resistive touch switches use a similar method of operation as resistive touchscreens. They contain two layers, each of which features electrodes, that are separated by air. When you press a button, the top layer will push into the button so that the electrodes may contact. This contact will complete the circuit so that the resistive touch switch registers your command.

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Capacitance vs Resistive vs Piezo Touch Switches

Capacitance vs Resistive vs Piezo Touch Switches

Touch switches are found in everything from smartphones and tablets to lamps and machines. The term “touch switch” refers to any type of electrical switch that requires touch to operate. Most touchscreen interfaces feature multiple touches switched embedded within the display. While all touch switches serve the same basic function, there are some subtle nuances between the different types. The three primary types of touch switches include resistive, capacitance and piezo.

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