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Xinyuan-LilyGO / LilyGo-T-RGB

MIT License
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External I2C #55

Open tBubus opened 1 month ago

tBubus commented 1 month ago

Hej,

can you provide some examples how to use the external I2C?

lewisxhe commented 1 month ago

The external I2C has been initialized in the library. Just connect the sensor to the terminal and then directly call the initialization of your sensor library to use it.

github-actions[bot] commented 2 weeks ago

This issue is stale because it has been open for 30 days with no activity.

Mike-Kuznetsov commented 1 week ago

I've made it work with my i2c BMP280 sensor. It works even if you don't want to use Lilygo-T-RGB library. It works even if you don't have grove connectors.

Steps:

  1. Google grove pinout.
  2. Solder wires (SDA to SDA, SCL to SCL, 3,3v to 3.3v, GND to GND)
  3. Get an example code from your sensor's library (for example Adafruit_BMP280 lib)
  4. Add "Wire.begin(8, 48);" to setup function before the code which starts sensor activity. It changes standard SDA and SCL pins to 8 and 48
  5. It works