Nightscout-Wemos-OLED

Nightscout blood sugar display on a Wemos with an OLED display.

Credits

All credit and thanks go to the original project contributors:

• robjohnc
• c9679

This is a modified version of those projects.

Requirements

Hardware:

• Wemos D1 Mini
• Blue/Yellow I2C OLED Display

3D Printed Case

Credit to Qrome - Thingiverse link

Arduino

• Download and install Arduino IDE 1.x or 2.x

Boards Manager

Starting with 1.6.4, Arduino allows installation of third-party platform packages using Boards Manager. We have packages available for Windows, Mac OS, and Linux (32 and 64 bit).

• Start Arduino and open the Preferences window
• Enter https://arduino.esp8266.com/stable/package_esp8266com_index.json into the File>Preferences>Additional Boards Manager URLs field of the Arduino IDE. You can add multiple URLs, separating them with commas.
• Open Boards Manager from Tools > Board menu and install esp8266 (v2.7.4) platform (and don't forget to select your ESP8266 board from Tools > Board menu after installation).

Libraries:

• Time
• ArduinoJson (Version 5)
• esp8266-oled-ssd1306

Setup

1. Setup Arduino:

   • Install Arduino IDE.
   • Add ESP8266 (v2.7.4) board support.

2. Download Libraries and Drivers:

   • Install required libraries mentioned above.

3. Credentials.h.example:

   • Rename credentials.h.example to credentials.h (Just remove .example)

4. Configure Wifi Details:

   • Update Wifi details in the credentials.h file.

5. Configure Nightscout Connection:

   • Add your Nightscout URL and SHA also in the credentials.h file.

6. Adjust Timezone:

   • Change timezone if needed.

7. Customize Screen Pins:

   • Modify screen pins if necessary (e.g., "SSD1306Wire display(0x3c, D2, D5);").

8. Set Sleep Time:

   • Adjust the sleep time for the number of minutes between site checks (default is every 1 minute).

9. Upload Sketch:

   • Upload the sketch, ensuring the board is set to "LOLIN(WEMOS) D1 R2 & mini."

Wiring

Connect the hardware as follows:

• VCC = 3v3
• GND = GND
• SDA = D2
• SCL = D5

Troubleshooting

Make sure you check the issues section for some help. Here are some issues that I solved when first setting up the project; Issues - Closed

Contributing

If you'd like to contribute to this project, feel free to submit pull requests following the contribution guidelines.

License

This project is licensed under the MIT License - see the LICENSE.md file for details.

Anyway, hope someone finds this useful! Feel free to reach out if you have any questions or issues.