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This circuit flashes two red LEDs for a model railway crossing.The circuit uses a 555 IC to flash the LED's alternatively to give effec...
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Here's a clever circuit using two 555's to produce a set of traffic lights for a model layout. The red LED has an equal on-off per...
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The circuit below is darkness detector that is it automatically turns on the LED when LDR senses no light. LDR is the light dependent resi...
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This circuit produces a weird "Laser Ray" sound and flashes a LED at approx 5Hz. COMPONENTS USED: 1.one 555 IC 2.one 1...
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This circuit sound just like a ticking bomb.It utilizes the astable mode of 555 IC and produces ticks that are similar to a time bomb ticki...
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This circuit makes a LED fade on and off. first charges a 100u and the transistor amplifies the current entering the 100u and delivers 10...
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This is a game for two players. Player 1 presses the START button. This resets the 4026 counter chip and starts the 555 oscillator. The 55...
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We are now going to use a string of LEDs (10 in total) to make an LED chase effect (see Table 3-1), similar to that used on the car KITT i...
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This Circuit using 555 IC produces sound similar to a machine gun.It uses a combination of resistances and capacitances along with 555 IC w...
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The Electronic Cricket Match game is presented below, the circuit has 8 LED which represent various states in a cricket game - 2 runs ,si...