To keep component count low and the circuit as simple as possible the ads1115 is used in differential mode eliminating the need for bias resistors.
Arduino energy monitor.
You can use the eagle files to get a professional board made or you can email me and see if i have any on hand for sale.
Open source smart energy monitor with some new features like terminal commands readings logger and data plotting.
Note that if etching your own board the through hole parts will be a bear to solder.
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.
1x 9v ac ac power adapter 1x 100kohm resistor for step down voltage divider.
Wiring up the circuit.
Upload the arduino sketch.
The arduino energy monitor.
This page and linked pages detailed below document how to build whole house energy monitor that has a display for easy quick access to current energy use information usb datalogging for detailed long term data storage and internet connectivity for online graphing.
Pre assembled open hardware electricity temperature and humidity monitoring units based on the arduino and raspberry pi platforms.
The arduino converts the raw data from its analog input into human readable values then sends them to the serial port monitor.
Nov 19 2008 08 52 pm.
Assemble the components per the diagram above.
1x 100kohm resistor for step down voltage divider.
Smart energy monitor based on arduino project tutorial by mohamed maher.
Step one gather components.
All the calculations are done in the digital domain on an arduino.
The sketch is the software that runs on the arduino.
The code is shown in the attached images here is the link to download the energy meter code.
This basic version is for apparent power only.
Ct sensors interfacing with an arduino.
Introducing the openenergymonitor system.
Attached to this step are the eagle schematics and board layouts for the arduino energy monitor shield as well as pdfs for printing and using the toner method for etching your own pcb.
The display the display unit.
1x 9v ac ac power adapter.
All the calculations are done in the digital domain on an arduino.
The energy monitor can calculate real power apparent power power factor rms voltage rms current.
Now you can upload your sketch onto your arduino if you haven t uploaded a sketch before then follow this guide on getting started.
Step one gather components.
The energy monitor can calculate real power apparent power power factor rms voltage rms current.
