Arduino Energy Meter Using Acs712

The ac current passing through the load is sensed by the current sensor module acs712 and fed to the analog pin a0 of the arduino wemos board.

Arduino energy meter using acs712.

The calculated power and energy by the arduino wemos is displayed on a 0 96 oled display module. I m trying to build an ac power energy meter for some project of mine. As asc712 can be used for measuring either ac or dc currents arduino can be implemented to measure the same. This power meter can be used to measure household appliances power consumption up to 1 000w.

As shown in the picture we have three pins on the module which are vcc vout and ground respectively. Once the analog input is given to arduino the measurement of power energy is done by arduino sketch. So interfacing an acs712 current sensor with arduino helps us in measuring current with the help of arduino. Jul 22 2018 02 07 pm.

Worse the acs712 is a ratiometric sensor and you re measuring it with an absolute voltage a d. The main components of the power meter are an acs712 sensor an arduino nano and a 20 4 lcd display. I m using the acs712 hall effect current sensor for this project due to its compact size. Ac energy meter calculation using acs712 read 8045 times previous topic next topic.

The calculated power and energy by the arduino wemos is displayed on a 0 96 oled display module. Eine auswertung über einen analogen eingang am mikrocontroller ist daher mit nur wenig aufwand möglich. This brought the idea of designing an energy meter i used arduino as the heart of this project because it is very easy to write code in its ide and there are huge numbers of open source library available in the internet which can be used according to the requirement i have experimented the project for very small rated 10watt solar system but this can be easily modified to use for higher. The board it s mounted on migh even be less than that.

The acs712 is afaik only rated for 184volt ac. When it comes to measuring current arduino or any other microcontroller needs assistance from a dedicated current sensor. Once the analog input is given to arduino the measurement of power energy is done by arduino sketch. Shout for help again.

Stromsensoren mit dem acs712 chip können sehr leicht mit arduino mikrocontrollern verwendet werden da die signalausgabe in form einer spannung zwischen 0 bis 5 volt erfolgt. That results in zero current and max current drift if acs supply is not stable usb supply is a no go. The major advantage of using acs712 current sensor is that is can measure both ac and dc current and it also provides isolation between the load ac dc load and measuring unit microcontroller part. The ac current passing through the load is sensed by the current sensor module acs712 and fed to the analog pin a0 of the arduino wemos board.

Mains power should be measured with a clamp on.