Arduino Energy Monitor Op Amp

The emontx v3 uses a 3 3v regulator so it s v cc and therefore aref will always be 3 3v regardless of battery voltage.

Arduino energy monitor op amp.

Earlier i have posted an instructables on arduino energy meter which was mainly designed to monitor the power from the solar panel dc power in my village. The arduino converts the raw data from its analog input into human readable values then sends them to the serial port monitor. First a quick look at the installed setup. Ac current sensing based on this type of non invasive ac current sensor monitoring the energy consumption.

Assemble the components per the diagram above. It became very popular on the internet lots. Now you can upload your sketch onto your arduino if you haven t uploaded a sketch before then follow this guide on getting started. Arduino energy meter v2 0.

Supported three types of lcds eds tft lcd 1 8 which has sd card slot on the backside nokia 5110 lcd edgpu serial lcd supported radio wireless module nrf24l01 other resources two buttons to control operate one analog pin on board. You can measure all electrical parameters for utility input and do the same for renewable source like solar or wind turbine at the same time. The display unit consisting of 4 large green led 7 segments. Upload the arduino sketch.

As any other transformersns current ct013 100a has primary and secondary windings the ratio is 100 0 05 i e. The standard emontx v3 uses 22ω burden resistors for ct 1 2 and 3 and a 120ω resistor for ct4 the high sensitivity channel. When 100a flow through primary 1 turn wire the secondary coil will have 50ma. Burden resistor sizing for openenergymonitor energy monitoring hardware.

The code is shown in the attached images here is the link to download the energy meter code. How to build an arduino energy monitor measuring mains current only. Hello friend welcome back after a long break. Because your setup ct resistors and input voltage may be different there is a scaling factor in the sketch which you will need to change before you will get.

This guide details how to build a simple energy monitor on a breadboard that can be used to measure how much electrical energy you use in your home. It measures current but uses an assumed fixed value for voltage 230v if you re in the uk and calculates apparent power. The sketch is the software that runs on the arduino. On the right is a 6 mode mode chooser so that you can select by turning the potentiometer bottom right whether the display shows real power apparent power power factor rms voltage rms current frequency or cumulative kwh used.