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- 04:00, 20 November 2022 David talk contribs created page Esp32/esp32 i2c scanner (Created page with "******** Rui Santos Complete project details at https://randomnerdtutorials.com ********: #include <Adafruit_NeoPixel.h> #include <Wire.h> #define I2C_SDA 0 #define I2C_SCL 1 #define PIN 8 // On Trinket or Gemma, suggest changing this to 1 #define NUMPIXELS 1 // Popular NeoPixel ring size Adafruit_NeoPixel pixels(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800); void setup() { Wire.begin(I2C_SDA, I2C_SCL); Serial.begin(115200); Serial.println("\nI2C Scanner...")
