As of this writing, GPIO, WiFi, SPI and I2C were ready to test out ... I’ll give it a second look. The SPI routines in the ESP32 Arduino port both work just fine. I tested it out by connecting ...

But this project, known as eye2see, hopes to change that by using the i2c bus found in most Arduinos ... If you’d like to skip needing to use a second Arduino, we’ve seen some other tools ...

For years, there has been a clear distinction between the Arduino and ... while the second pair is on GP4-GP5 and GP8-GP9. There are also two SPI controllers and two I2C controllers available ...