Tapping morse code circuit

October 15, 2010, 9:18 pm

≫ Next: Noise generator 2 frequency with ic 555

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Morse code is a code of signals used in military communications in the past. But today, it is also common among surfers radio The percussion Morse code as a standard in radio communications. This circuit is a demonstration of tapping Morse code basics. Enter the power supply circuit is on, press the S1 Charset circuit [...]

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Noise generator 2 frequency with ic 555

November 18, 2010, 12:52 am

≫ Next: Coin toss electronics using IC NE555-CD4017

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This is a simple noise generator circuit. An IC Timer IC 555 is a number of major equipment. Small circuit. Suitable for various test circuits. Operation of the circuit is when the power supply to the circuit. It will give birth to high frequency by using a circuit IC1 to a multi-state Devices Bill Brett [...]

Coin toss electronics using IC NE555-CD4017

December 18, 2010, 7:22 am

≫ Next: Timer control 1-15 minutes by Triac 2N6075 and LM555-LM358

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This is a review of electronic sound or a violent coin toss. With electronic circuits. This circuit uses integrated digital IC NE555 and CD4017 with LED display easily. Principle of the circuit, when voltage is 5 volts to the circuit C1 will charge through the VR1 and R1 fully. IC1, R2, R3 and C2 to [...]

Timer control 1-15 minutes by Triac 2N6075 and LM555-LM358

February 21, 2011, 10:37 pm

≫ Next: Battery Status Monitor by ICM7555

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Most timer circuits. Often used with electrical transformers containing low as 9V and 12V, and use of electrical control relays.but the 1-15 minute timer circuit.It uses a triac instead of electrical control.This can be used with a 220V power house it is not connected to the transformer. Make smaller and easy to use. This circuit [...]

Battery Status Monitor by ICM7555

August 11, 2012, 11:51 pm

≫ Next: Automatic water tank using pump controller by 2SD882

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The low power LED flasher by ICM7555 Normally, when you need to use LED display status of the battery 6V-12V. Just add a resistor in series only. It is easy and saving. But not cool and consumes more power. - The impression of a bright that continuously. I think that did not noticeable it. - [...]

Automatic water tank using pump controller by 2SD882

August 14, 2012, 8:09 pm

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The automatic water tank by pump controller allows for a convenient and cost effective. In the countryside, Water is very important. The most to use the groundwater to dig as pond, and for the convenience, They often use the pump automatically, But waste a lot of electricity. Some homes have a large water tank on [...]

The many DC to DC converters using IC-555

August 19, 2012, 4:48 am

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If friends would to want the DC to DC voltage converter is small that has a few output current. I would suggest the IC-555 is a key equipment that it is popular and easy to uses so can be used in many circuits. Doubler voltage 12vdc to 24vdc with NE555 This be Simple Doubler Voltage [...]

Audio generator is controlled by light

September 5, 2012, 4:24 pm

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These circuits is used to control audio with light. In simple transduction And the change of light. To control the tone.,we is recommended that three circuits, each circuits consists of a simple device. Suitable for studying the performance of optical sensors is LDR. Tone Generator Control with light using IC 555 This the Tone Generator [...]

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Cheap frequency meter by CA3130

January 14, 2013, 8:02 pm

≫ Next: LED Chaser by IC 4017 + IC 555

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The electronics are still used to use a frequency generator circuit beuause It is important. And are used a lot in electronic circuits, both sine, square wave and more. In every time related to the frequency. What that we want to know is how much frequency. For laboratory common standards. We have many tools available [...]

LED Chaser by IC 4017 + IC 555

May 15, 2013, 5:50 pm

≫ Next: High Power Pulse Generator using LM350T and NE555

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I believes in that extremely amateur electronics many you, may ever build the LED flasher or light blinks or the LED Chaser prevent come to already. Today I begs for to advise the circuit LED Chaser, by have LED show 10 amounts together. blink stick bright chase go to continually. By have IC CD4017 circuits [...]

High Power Pulse Generator using LM350T and NE555

July 24, 2013, 11:14 am

≫ Next: 555 Siren sound Generator

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This is a high power pulse generator circuit, Which have main components are IC555 as oscillator and LM350T provided high current up to 3A max. When you see in Simple Pulse Generator May will has a question or like to want the high current output. Which normall current of 200mA maximum only. Today we will [...]

555 Siren sound Generator

August 8, 2013, 10:08 pm

≫ Next: 5-30 minuts timer alarm circuit using IC555

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A Sound Generator siren project, suitable for beginners. Build a simple, but widely applied. The siren sound is a sound listening to indeed impactful. Commonly used as a sounds alarms in many forms. such as a burglar alarm in the house or install in car as alert sound ask to give way on ambulance, police [...]

5-30 minuts timer alarm circuit using IC555

August 13, 2013, 11:33 pm

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This circuit uses a 555 IC timer number. This small,compact and portable. For the snooze alarm by buzzer when some 5 to 30 minutes. It makes clear the brain is ready to continue to work. When the switch S1 to enter a power supply circuit, it will be ready to go.The circuit includes a circuit [...]

Easily create stereo sound 3D.

August 22, 2013, 2:42 am

≫ Next: European police siren circuit

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This is a create special stereo sound circuits. Which sound is a dimension to the listening. Using the some low frequency to appear out the left and right continuously. Interspersed with master frequency. By signal frequency is mono system passed through this circuit. The low signal frequency and Frequency prototype will take turns, out of [...]

European police siren circuit

September 30, 2013, 3:51 am

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The European police siren circuit is type of a siren. Which it is different from normal, is characteristics sound is high – low curtailed without like tone of voice common Siren. Which is strange, another, of the circuit type siren. Thought it would desirable. Amateur those electronic all. The working principle As circuit in this […]

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PWM DC motor controller with NE555 and darlington transistors

December 5, 2013, 11:59 pm

≫ Next: Two way 12 LED running lights using CD4017 and NE555

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This is circuit for dimmer a lamp or controll speed of a DC motor. I used to suggests these circuit by use principle most PWM (PWM Control Speed Motor 12V By TL494) form. But TL494 is not cheap and hard to buy we use NE555 beter very cheap and popular. This circuit have a lot […]

Two way 12 LED running lights using CD4017 and NE555

March 13, 2014, 2:17 am

≫ Next: Simple sound effect generator circuit using IC-555 and IC-4017

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This Two way LED running lights to use for beautiful, this circuit uses 12 LED lamps, arranged in 2 rows, each row of 6 leds. A green one and a red one, alternatively. use a different color for this. Technical information -The power supply of 6-12 VDC. -Power consumption is about 12 mA maximum -Have […]

Simple sound effect generator circuit using IC-555 and IC-4017

July 26, 2014, 10:49 am

≫ Next: Modify a LED chaser circuit into the easy timer

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If we want to be a producer,This circuit would be a good starting point to composed music for 1000 tracks. As Figure 1 is a common circuit. Which will see them always when use LED running. We will use an IC-555 timer and IC-4017 Decade Counter Divider with 10 Decoded as sound effect generator with […]

Modify a LED chaser circuit into the easy timer

August 8, 2014, 7:14 am

≫ Next: Idea to build simple frequency meter from old calculator

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The a LED chaser is popular, so we will modify it into the easy and cheap timer. First,a appliance will works, while respective LEDs will flash, and until all LEDs go out. Then the appliance stop. How it works. In Figure 1 is the circuit. To begin with, to apply the cord and the appliance […]

Idea to build simple frequency meter from old calculator

August 11, 2014, 6:11 pm

≫ Next: Simple 12 LED running using CD4017 and NE555

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This circuit use a simple ideal is the calculator count a frequency within range 1 second. This time base is generated by IC-555,on astable multivibrator form. How it works The number on the calculator’s panel is the input frequency. to base of transistor Q2 . The capacitance of C1 should is lowest tolerance,to be accurate. […]