Upload freq_meter_wl_1.ino source code to the board. From Tools menu of Arduino IDE, open the serial monitor and select the proper baud rate (9600 is used here) to display the frequency on the serial ...

Fig. 2: Block diagram of digital frequency meter Circuit and working. The circuit diagram of the digital frequency meter is shown in Fig. 3. It consists of Arduino Uno board, optocoupler MCT2E (IC1), ...

Learn how to build a DIY current and voltage meter using Arduino Nano. This project demonstrates step-by-step instructions to measure current, voltage, and wattage with precision. Using simple ...

Arduino enthusiasts and makers searching for a new project to keep them busy this weekend may be interested in a new DIY Arduino Nano multimeter created by YouTuber Electronoobs. Using a small ...

Arduino UNO: Acts as the microcontroller to process data from the sensors and calculate energy consumption. GSM Module (SIM800L): Sends daily SMS with energy usage details to the consumer's mobile ...