Arduino Energy Monitor Op Amp

As any other transformersns current ct013 100a has primary and secondary windings the ratio is 100 0 05 i e.

Arduino energy monitor op amp.

Upload the arduino sketch. The display unit consisting of 4 large green led 7 segments. Ac current sensing based on this type of non invasive ac current sensor monitoring the energy consumption. When 100a flow through primary 1 turn wire the secondary coil will have 50ma.

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. 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. 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 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. How to build an arduino energy monitor measuring mains current only. 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. The sketch is the software that runs on the arduino.

First a quick look at the installed setup. On the other end the sensor have 3 5 mm audio jack where you can plug in mating connector and connect to arduino. Ct sensors interfacing with an arduino. 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.

Burden resistor sizing for openenergymonitor energy monitoring hardware. The standard emontx v3 uses 22ω burden resistors for ct 1 2 and 3 and a 120ω resistor for ct4 the high sensitivity channel. 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. The code is shown in the attached images here is the link to download the energy meter code.

Arduino energy meter v2 0. 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. It measures current but uses an assumed fixed value for voltage 230v if you re in the uk and calculates apparent power.