Ac Power Meter Diy

The meter uses pic16f876a microcontroller with 16x2 backlighted lcd.

Ac power meter diy.

Make your own power meter logger. I was walking through the hardware store the other day and i walked past an energy meter which clips onto your home s electricity mains and then provides you with information on your power consumption and cost estimates for the month. The meter is a perfect addition to any power supply battery chargers and other electronic projects where voltage and current must be monitored. Project file on the free design tool.

Slide the calibrate slider to get the current zero when no load is connected. The diy digital ac watt meter is an arduino mega 2560 microcontroller controlled system that reads current and voltage in an ac system. Set the power supply in current limiting mode first at 0 a. Volt ampere meter measures voltage of 0 70v or 0 500v with 100mv resolution and current consumption 0 10a or more with 10ma resolution.

Measure the home ac supply voltage by using a multimeter and set it by sliding the supply voltage slider. Presented here is a demonstration of how to build an ac power meter using a current transformer see the. This is an ac watt meter which can measure the real power consumption of a device connected to the 230vrms 50hz mains line. Set the power supply current at a value near the end of the wattmeters current range and read the multimeter i ref and wattmeter i read.

Use the wattmeters current input. It calculates and displays the power current voltage and phase of a single phase ac circuit on a liquid cristal display lcd. In this project i will show you how i combined an arduino an ina219 power monitor ic an oled lcd and a micro sd card pcb in order to create a power meter logger that has more functions than the popular usb power meter. The formula for power is the product of the ac line voltage and the measured current.

The pic microcontroller collects the voltage and the current information with the help of adcs and then calculates the rms voltage of the mains line rms current drawn by the device and the resulting average power consumption. The new current conversion factor is calculated as. Change the following parameters from the blynk app. Set the power factor.

Plug in the power cord of the energy meter to the mains outlet. Have fun and win via jlcpcb e exhibition.