Create an RPM counter (tachometer) with Arduino using an IR sensor and LCD module. This project calculates RPM based on sensor interrupts and displays the result on a 16x2 LCD. Perfect for measuring ...
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 ...
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