Weezer 555 photoresistor sound noise project PCB Only US Seller. Buzzing “weezer” sound tone based on light “seen” by photoresistor. Requires: 555 IC Photoresistor 100k resistor 2.2uF capacitor 2x 10nF capacitor 16 ohm piezo passive speaker/buzzer USB micro OR 2 pin header for power Runs on 5V PCB ONLY - NO PARTS INCLUDED Photo w parts & case is for reference only.
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