Im trying to send a buffer over a I2C communication.
this is the code i used :
Wire.beginTransmission(SCREEN_WRITE_addr);
Wire.write(addr);
unsigned char* ptr = data;
for (int i = 0 ; i < len ; i++) {
Wire.write(*ptr);
if (DEBUG) {
Serial.print("WE WROTE :");
Serial.println(*ptr,HEX);
}
ptr++;
}
Wire.endTransmission(true);
some how only the last byte has been sent ... why ?
Im trying to send a buffer over a I2C communication.
this is the code i used :
some how only the last byte has been sent ... why ?