12 MHz SMD Crystal Oscillator 5V Relay Board Module with Optocoupler which saves a lot of

which saves a lot of IO Pins for other purposes

This chip combines an ultrasonic transmitter

Long-range 2

a longitudinal wire might be required

This parameter limits the maximum trigger temperature that can be set

12 MHz SMD Crystal Oscillator 5V Relay Board Module with Optocoupler which saves a lot ofIts a 12 MHz Crystal Oscillator HC49 US Package. The crystal oscillator is used in microprocessor clock, network card, various consumer electronics, etc. It operates on the principle of inverse piezoelectric effect in which an alternating voltage applied across the crystal surfaces causes it to vibrate at its natural frequency. It is these vibrations which eventually get converted into oscillations, The crystal oscillator is used in microprocessor