Arduino Energy Monitor Op Amp

Ac current sensing based on this type of non invasive ac current sensor monitoring the energy consumption.

Arduino energy monitor op amp.

We built our source code to handle up to 5 inputs measuring and 5 out measuring you just need to add more cts and pts for each additional input outputs as we will discuss that in hardware section. 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. As any other transformersns current ct013 100a has primary and secondary windings the ratio is 100 0 05 i e. The arduino converts the raw data from its analog input into human readable values then sends them to the serial port monitor.

When 100a flow through primary 1 turn wire the secondary coil will have 50ma. 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. 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. First a quick look at the installed setup.

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. Hello friend welcome back after a long break. The standard emontx v3 uses 22ω burden resistors for ct 1 2 and 3 and a 120ω resistor for ct4 the high sensitivity channel.

The code is shown in the attached images here is the link to download the energy meter code. Burden resistor sizing for openenergymonitor energy monitoring hardware. Now you can upload your sketch onto your arduino if you haven t uploaded a sketch before then follow this guide on getting started. Ct sensors interfacing with an arduino.

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. 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. It became very popular on the internet lots. Upload the arduino sketch.

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. The display unit consisting of 4 large green led 7 segments. On the other end the sensor have 3 5 mm audio jack where you can plug in mating connector and connect to arduino. Assemble the components per the diagram above.