Tag Archives: halloween_props

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DIY Circuit – Blinking LEDs for eye props

Here’s a cool circuit for making your blinking eyes on holloween using the 555 timer chip. This chip is very useful for a lot of applications.

The eye blink circuit consists of a timer and light emitting diodes, which function as the eyes. The timer circuit for the blinking eyes is based on the 555 timer. Figure 1 illustrates the standard timer circuit. The resistors and capacitor on the left control the charge and discharge of the circuit, which runs the pulse rate and duty cycle of th

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