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160 Piezo Speaker PS1240
160-ADA Piezo Speaker PS1240
CA$2.89
Piezo Speakers are used for making beeps, tones and alerts. This one is petite but loud! Drive it with 3-30V peak-to-peak square wave.
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377 Rotary Encoder with Knob
377 Rotary Encoder with Knob
CA$8.16
This rotary encoder is the best of the best. It is a high quality 24-pulse encoder, with detents and a nice feel. It is panel mountable for placement in a box, or you can plug it into a breadboard (just cut/bend the two mechanical side tabs.) We also include a nice soft-touch knob with an arrow in it, fits perfectly and looks great.
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419 Membrane Matrix Keypad 3x4
419 Membrane Matrix Keypad 3x4
CA$7.60
This keypad has 12 buttons, arranged in a telephone-line 3x4 grid. It's made of a thin, flexible membrane material with an adhesive backing (just remove the paper) so you can attach it to nearly anything. The keys are connected into a matrix, so you only need 7 microcontroller pins (3-columns and 4-rows) to scan through the pad.
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