ArduinoEnergyLogger

An arduino code that reads Current Transformer (CT sensor) data, SRNE Mppt controller data, and SNAT PSW inverter. The data collected will be transmit to a HTTP server via POST with a CSV formatted data. The device used in this project is Wemos D1 mini.

Please refer to the screenshots below.

Applications

• Solar and Energy Datalogging
• Diagnostics
• Consumption Analysis

Supports

• CT Sensor
• SRNE Mppt Controller
• SNAT PSW Inverter

Files

• ArduinoEnergyLogger.ino - main file
• ct.ino - support file for ct sensor reading (based on emon).
• display.ino - support file for displaying data via LCD.
• post.ino - support file for posting data to a HTTP server.
• srne.ino - support file for extracting data from a srne mppt controller.
• snat.ino - support file for extracting data from a snat psw inverter.
• webserver.ino - support file for the device webserver, used for wifi and device configurations/informations.
• wifi.ino - support file for wifi.
• utils.ino - helpers.

Wiring for CT sensor, SRNE, and SNAT

CT sensor                 Wemos D1 mini
divider circuit --------- ADC0 (A0)
(2 x 100k ohms and 10uF)

SRNE                      Wemos D1 mini
Rx ---------------------- D7
Tx ---------------------- D8

SRNE                      Wemos D1 mini
Rx ---------------------- D5
Tx ---------------------- D6

Screenshots (Grafana display)

Screenshots (Device Webserver)

NOTES

• Still in beta test

TODO

• Device mass production