In this post, we’ll explore how to build a high-frequency counter using an Arduino and an LM311 comparator. This setup enables accurate frequency measurement of various signal waveforms, such as sine, square, triangle, and sawtooth, with frequencies…
The LM393 and LM311 are two popular operational amplifier (op-amp) integrated circuits used in a variety of applications. Both are comparators , meaning they compare two input voltages and produce an output signal based on their comparison. In th…
Here it is shown how one can build a light sensor detector using LM311 and LDR(Light Dependent Resistor). The light sensor detector uses Light Dependent Resistor(LDR) which is sensitive to light. When light shines on LDR, the resistance decreases. T…
Here it is shown how to build a high frequency counter with Arduino and LM311 comparator to measure the frequency of a signal. The frequency counter shown here can measure frequency upto and above 6MHz which is quite high. There are several metho…
