Sound detector with LED

This circuit is a Sound detector that run a LED when detect voice.
can use as voice level detector or anti theft system.
the circuit can run by 6 to 12v.


Sound detector with LED

Sound detector with LED 
 

Lokasi: United States

Komentar

Posting Komentar

Postingan populer dari blog ini

Using ultrasonic sensor without arduino

Gambar
Using ultrasonic sensor without arduino Parts list: IC 555 IC KA2284 LED(5pcs) Ultrasonic receiver & transmitter Resistor 1K Resistor 2.2K Resistor 10K Resistor 100 ohm Potentiometer 10K (2pcs) Capacitor 10uF (4pcs) Capacitor 3.3nF Transistor 2N2222 Buzzer There are 2 ways to using Ultrasonic sensor without microcontroller: First way, the buzzer turns ON when you put your hand near the sensor   Second way the LED bar show you the distance level between the sensor and the objects. Video: More information in the video
Baca selengkapnya

Electronic load using Op-Amp IC 358

Gambar
Electronic load using Op-Amp IC 358 In this circuit i using IC 358 and some few components to make a simple constant load.  The trick here is connecting a dc voltmeter to the non-inverting input of the op-amp to preset the current before connect it to the battery or the super cap. under test. For more explanation you can watch the video below. Parts list: LM358 : https://www.banggood.com/custlink/Dvv3hO51Df High power resistor: https://www.banggood.com/custlink/K3GvYjHwRm Digital DC Voltmeter: https://www.banggood.com/custlink/3vmDYL5TDU Copper board: https://www.banggood.com/custlink/3KDDmMsPSc MOSFET IRFZ44N : https://goo.gl/35n5Tb   Potentiometer 100K : https://goo.gl/dKnWCj Resistor kit (10 Ohm): https://goo.gl/TgSaff Heatsink: https://www.banggood.com/custlink/D3KGdOSmzf   Circuit:   Gerber file: Download the Gerber file from here:  https://drive.google.com/open?id=1Lx8xjfkyYPvvzAbA0ponFBYBTQDqrMvU Video: For more explanation you can watch the video below 
Baca selengkapnya

Arduino 220V AC Power meter using PZEM004T

Gambar
Arduino 220V AC Power meter using PZEM004T Library : https://github.com/olehs/PZEM004T Part list: Arduino board LCD 16x2 PZEM004T module Resistor 220 ohm Potentiometer 10K Video:  CODE: #include <SoftwareSerial.h> // Arduino IDE <1.6.6 #include <PZEM004T.h> #include <LiquidCrystal.h> LiquidCrystal lcd(7, 8, 9, 10, 11, 12); PZEM004T pzem(2,3);  // (RX,TX) connect to TX,RX of PZEM IPAddress ip(192,168,1,1); void setup() {   Serial.begin(9600);   pzem.setAddress(ip);   lcd.begin(16, 2); // lcd rows and columns    } void loop() {     float v = pzem.voltage(ip);   if (v < 0.0) v = 0.0;   Serial.print(v);Serial.print("V; ");   lcd.setCursor(0,0);   lcd.print("V= ");   lcd.setCursor(2,0);   lcd.print(v);   float i = pzem.current(ip);   if (i < 0.0) i = 0.0;   Serial.print(i);Serial.print("A; ");   lcd.setCursor(9,0);   lcd.print("A= ");   lcd.setCursor(11,0);   lcd.print(i);   float p = pzem.power(ip);   if (p < 0.0) p = 0
Baca selengkapnya