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Halloween Circuits - Bakatronics
https://www.bakatronics.com/shop/category.aspx?catid=172
Halloween circuits, Timers, Sensors, Motor Controls, Sound Kits, Ghost Busters LEDs, LED Chasers, Voice Controls, Recorders.
Audio Setup | Halloween Scream Box | Adafruit Learning System
https://learn.adafruit.com/halloween-scream-box/audio-setup
When the PIR sensor detects motion and triggers a sound you should see a red LED on the Audio FX board turn on. If you don't see the red LED turn on or hear the sound, then you might need to adjust the PIR sensor sensitivity. Check out the PIR guide for more details on adjusting the sensitivity. You can also play with the retriggering and delay time on the PIR …
Audio Driver - Scary Terry's Halloween Page
http://www.scary-terry.com/audiodriver/audiodriver.htm
Circuit Description: This circuit will accept a wide range of input levels, which are compensated for by feedback resistor R3.OpAmp U1a amplifies the signal while U1b is used as a comparator whose sensitivity is set by R6. The output of U1b feeds the transistor Q1 which controlls relay K1 and optional LED D3.
DIY Halloween LED Light System - YouTube
https://www.youtube.com/watch?v=ISQJBGYRASY
Thanks to Dminorsound for creating this awesome and easy to do RCA LED light system and also for finding these really cool flickering LEDs. I was always on ...
Creating an Audio-Reactive LED Circuit : 10 Steps ...
https://www.instructables.com/Creating-An-Audio-Reactive-LED-Circuit/
1) Insert the negative end of the LED into the negative rail, and the positive end into an adjacent hole. 2) Insert the 330 ohm resistor in series with the LED, connecting the positive leg to Vcc (9 Volts). The LED should be illuminated. If not, check the orientation of the LED and that all connections are inserted into the breadboard fully.
Amazon.com: sound activated led lights
https://www.amazon.com/sound-activated-led-lights/s?k=sound+activated+led+lights
70 ft LED Lights with Remote, App Control Sound-Responsive Luces LED Strip Lights SMD 5050 RGB LED Strips LED Lights for Bedroom, Room Decor, Dorms, Night Light for Kids (2 x 35 ft APP+ Remote+ Mic) 4.6 out of 5 stars. 457. $29.98. $29. . 98. Get it as soon as Tomorrow, Sep 30. FREE Shipping by Amazon.
Modulating Audio on a LED : 3 Steps (with Pictures ...
https://www.instructables.com/Modulating-Audio-on-a-LED/
Modulating Audio on a LED: [I made some changes to also support a microphone]In this tutorial, I will demonstrate how audio (music or sound) can be transmitted over a light beam generated by a LED. This project includes 2 parts: The transmitter, that takes the audio and m…
Audio Conversion to Light LED Circuit
https://circuits-diy.com/audio-conversion-to-light-led-circuit/
The circuit contains three main parts. First, an audio preamplification using transistor Q1. The electret microphone detects the sound in the surrounding and converts it into an electrical signal. This signal, then, passes through transistor Q1 to amplify. Second, an audio amplifier stage which is built around transistor Q2.
Audio Controlled LED Circuit using Transistors - DIY
https://circuits-diy.com/audio-controlled-led-circuit-using-transistors-diy/
In this project, we are going to make Audio Controlled LED Circuit using a transistor. In an audio controlled LED circuit, LEDs turn on and off according to the music. This circuit is simple and efficient, it requires a small amount of audio signal at the input, which comes from the output of the headphone socket of any audio playing devices such as mp3 player, CD …
Driving LEDs from audio signal - Electrical Engineering ...
https://electronics.stackexchange.com/questions/36423/driving-leds-from-audio-signal
The LEDs in your link are 1 Watt standard type LEDs that are typically rated in the 350 mA range. The BC337 has a Vce of 0.9V and hFE of 80 @25C @ 350 mA meaning the power rating (250mW) of the part is greatly exceeded and it would burn out with approximately 0.9V*0.35A drop (315 mW). So it fails with too high Vce saturated voltage, too low hFE ...
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