This is a two part infrared remote controller circuit that consists of a transmitter and a receiver circuit pair. When you push the button on the 9V supplied transmitter circuit, a signal at 38kHz ...
As you might have noticed, the 38-KHz pulse generator is built around the evergreen timer chip NE555P (IC1). Here, the RC components (R5-C3-P1) set the astable frequency to drive the infrared light ...
Light therapy is one of the oldest modalities used to treat a variety of health conditions. The use of coherent light sources (like lasers) and non-coherent light sources (like light emitting diodes ...
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