![]() Blue LED: emission of infrared radiation.LM393 dual comparator to compare the signal created by the IR receiver with the predefined value through the potentiometer and to control the status of the LED that indicates the status of the digital output.The TCRT5000 module with analog output has to capacitors to increase the voltage stability. ![]() Multiple resistors to prevent LEDs for too high voltages and to operate as voltage dividers.The KY-033 has only one red LED that shows the status of the digital output. ![]()
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