The 555 timer IC has been around now for quite some time and the list of potential uses for this device appears to be endless. ... Alarms are very popular circuits today and the 555 timer is ideally ...

Figure 1 This classic 555-based timer is valid only for duty cycles greater than 50%.. Charging current for the timing capacitor flows through R A and R B until the capacitor voltage reaches the upper ...

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Here’s your useful and beautiful circuit for the day — [New Pew]’s vibration sensor takes manual control of the flip-flop inside a 555 timer and lights an LED in response.Use it to detect ...

You asked for it, and now you’ve got it. It’s taken more than a decade of accumulated complaining, but this gigantic 555 timer IC has finally gathered enough psychokinetic energy to tak… ...

This voltage-booster circuit for driving one or more white LEDs uses a 555 timer as its main element (see the figure). The timer, IC1, functions as a resettable astable multivibrator where R1, R2 ...

The 555 timer IC is an integrated circuit (chip) which is used in a variety of timer, delay, pulse generation, and oscillator applications. 555 Signals and Pinout (8 pin DIP) Figure below shows ...