4/6/2024 0 Comments 555 timer circuit explanationA 555 timer is used in the monostable mode to drive a relay to switch ON a load for a fixed time duration. Touch Controlled Load Switch: The project is designed to develop a touch-sensitive switch to control any load. Hidden Active Cell Phone Detector: The main scope of the project is to sense the presence of an activated mobile phone from a distance of one-and-a-half meters to prevent the use of same in the examination halls. Home Appliances Control with Time Delay Switch: This project is designed to control home appliances based on a fixed-time delay for each load by using an IC 555 timer to generate switching period intervals to drive a relay to switch ON or OFF for any load. Bistable Mode (or Schmitt Trigger) NE555 Timer IC Based Projects Please follow the link to know more about Bistable Multivibrator using IC 555. Generally, a switch is required for toggling between the high and low state of the output. A bistable vibrator is a circuit with two stable states: high and low.
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