https://github.com/kenny1342/e-panel

Energy Monitor Display using a Shelly EM device and ESP32 board
https://github.com/kenny1342/e-panel

arduino energy esp32 lilygo-tdisplay monitor platformio shelly shelly-api shelly-em tft-display ttgo-t-display

Last synced: about 2 months ago
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Energy Monitor Display using a Shelly EM device and ESP32 board

• Host: GitHub
• URL: https://github.com/kenny1342/e-panel
• Owner: kenny1342
• Created: 2024-06-14T11:13:52.000Z (8 months ago)
• Default Branch: main
• Last Pushed: 2024-07-01T06:22:44.000Z (7 months ago)
• Last Synced: 2024-10-31T03:23:18.050Z (3 months ago)
• Topics: arduino, energy, esp32, lilygo-tdisplay, monitor, platformio, shelly, shelly-api, shelly-em, tft-display, ttgo-t-display
• Language: C
• Homepage:
• Size: 4.88 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        

## Energy Monitor Display using a Shelly EM device and ESP32

Arduino project to display real-time energy data from a Shelly EM device on a TFT display connected to an ESP32 module.


It uses the Shelly Cloud API, make sure device is cloud-connected (it is by default). 


Shelly API returns JSON formatted data, we parse it using ArduinoJson library.


The JSON contains *alot* of information from the devices, the whole JSON object is printed to serial output.


I made this as a starting point for an electrical info display for my own smart-house setup.


This is just my personal hobby project, but maybe it's useful for someone else too.

(I have left the very first test sketch in extras/ folder, for quick test using Arduino IDE)





### Components used

* [https://www.shelly.com/en/products/energy-metering] (Any Shelly device with Energy Metering)

* [https://www.aliexpress.us/item/1005003680319016.html] (LilyGo TTGO T-Display (ESP32 module with TFT)

* [https://platformio.org/install/ide?install=vscode] (PlatformIO IDE for Arduino development in VS Code)

### Setup

* Rename include/secrets.h.example to secrets.h and fill it with your device details

  ** MAKE SURE NOT TO COMMIT THIS IN PUBLIC GIT REPO (secrets.h must be in .gitignore)

* Configure lib/TFT_eSPI/User_Setup_Select.h for your display

### Planned features

* Connect directly to Shelly device API over local LAN (Initial development was done off-site, only cloud possible)

### Possible TFT_eSPI issue (if using IDE installed version instead of included lib/TFT_espi version)

Note: I use a local copy of TFT_eSPI library in my projects to easily use different displays across my projects.

Using TFT_eSPI driver 2.5.43, I first got compile errors:

```

In file included from c:\Users\andersen.32\Documents\Arduino\libraries\TFT_eSPI\TFT_eSPI.cpp:24:

c:\Users\andersen.32\Documents\Arduino\libraries\TFT_eSPI\Processors/TFT_eSPI_ESP32.c: In member function 'void TFT_eSPI::begin_SDA_Read()':

c:\Users\andersen.32\Documents\Arduino\libraries\TFT_eSPI\Processors/TFT_eSPI_ESP32.c:72:3: error: 'gpio_set_direction' was not declared in this scope

   72 |   gpio_set_direction((gpio_num_t)TFT_MOSI, GPIO_MODE_INPUT);

```

I fixed this by adding

```

#include "driver/gpio.h"

#include 

to Processors\TFT_eSPI_ESP32.h

```

## Acknowledgments

* It uses Timemark.h from Mikael Patel

  

## Contact

Ken-Roger Andersen [https://www.linkedin.com/in/kenny1342]