SYA60 Touch Sound Control Alarm Electronic DIY Kit Electronic Skill Competition Kit DIY Electronic Parts
Description
Feature 1 Touch detection circuit IC1 machine peripheral circuit constitutes a monostable trigger circuit When the human body touches the touch terminal the low level signal on the human body will be applied to pin 2 of IC1 and pin 3 will output high level LED1 will light up and OUT1 will output low level Adjust RP1 to adjust the trigger time 2 Sound detection circuit After the microphone obtains the sound signal through coupling amplification shaping and filtering OUT2 outputs a low level signal LED3 lights up and VT1 is turned on after any one of OUT1 and OUT2 outputs a low level When the music chip is powered on it will send out alarm music Description1 Connect the 5V power supply2 Adjust the touch check circuit adjust RP1 so that the TOUCH area is touched with a finger and the time for TP1 to output high level is 2 3s3 Sound detection circuit adjustment adjust RP3 to make the sound detection sensitivity moderate TP3 is high when there is loud sound and low when there is no sound or small sound4 Music alarm circuit adjustment adjust RP2 after triggering the alarm signal to make the alarm music speed normalParameter Size 85 44MMWorking voltage 5VCircuit board material double sided 1 6MM RF 4 sheetPackage Included 1 x SYA60 Touch Sound Control Alarm Electronic DIY Kit
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