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conditioning sensors
An Arduino-Compatible Board 
Working principle
LED spectrum analyzer: Drive an LED strip or LED matrix that dances to music
accelerometer data Piezo Disk Vibration Sensor Digital Gravity vibration sensor with analog and digital output analog output
Tactile Button Round Colorful 25-Pack - 12mm Assortment BLE Micro - Super Compact BLE Module conditioning sensorsWhen pressed, each push button produces a pleasing click response and functions as a momentary tactile switch with a normally open (NO) operating mode. These switches are perfect for low power input applications because they have a 50 mA at 12V DC rating. The tactile switches have four through hole pins for simple PCB or breadboard mounting, and their dimensions are 12 x 12 x 7. 3 mm (L x W x H). Twenty five premium 12mm diameter caps that fit
