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ER-320
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Circuit Scribe - Buzzer Module
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The buzzer module uses a 4kHz fixed frequency, piezoelectric DC buzzer which operates in one direction. An internal oscillator that produces a 4kHz alternating current creates the pitch. As current flows in either direction across the piezoelectric material, it changes shape and creates the sound. An increased voltage will increase the amount of deformation of the piezoelectric material, increasing the amplitude of the sound wave being produced, and the volume of the sound we hear.
Contents and Images credit: Circuit Scribe Website
The NPN Transistor acts as a switch or amplifier. With no current at the base, there will be no current flow from collector to emitter. However, a small amount of current to the base will allow a large current to flow through the collector and emitter.
The Blinker module turns a direct current input into a square wave output, allowing you to make LEDs blink and Buzzers beep. It has a green LED flashing in time with the output and a red LED to indicate if power is connected the wrong way. You can change the blinking rate by turning the wheel!
The NPN Transistor acts as a switch or amplifier. With no current at the base, there will be no current flow from collector to emitter. However, a small amount of current to the base will allow a large current to flow through the collector and emitter.
The Blinker module turns a direct current input into a square wave output, allowing you to make LEDs blink and Buzzers beep. It has a green LED flashing in time with the output and a red LED to indicate if power is connected the wrong way. You can change the blinking rate by turning the wheel!
The Motor module operates between 8V and 12V. By flipping the module around, you can get the motor spinning in either direction. It comes with a soft foam wheel to visualize its rotation, but you can also create your own propellers or paper crafts to put on top!
Touch detection module with toggle and ON/OFF Mode
It’s a magnetic surface ,Slip it behind the page you’re working on.
Wired Door/Window Magnetic Switch set - Normally open
2inch wide and total lenght of 50 feet Sparkfun Part Number: PRT-13828