Arduino Frequency Counter Code Explanation: Code for this frequency measurement using arduino is quite simple and easily understandable.Here we are explaining the pulseIn function which is mainly ...

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Original Circuit Diagram: Arduino UNO R3. Now, have a look at our favorite Arduino UNO to find out the AVR chip inside. It is ATMega328P-PU, a low-power version of the traditional ATMega328-PU. The P ...

Arduino Uno R3 Development Board (or a trusted working clone would work fine) Bluetooth Module (Preferably HC-05) Android Device (Preferably one running v4.0 or above) Relays (R1 – R6 in Schematic ...