lazuriteでi2c

概要

lazuriteでi2cやってみた。

サンプルコード

i2cscanner

void setup()
{
    Wire.begin();
    Serial.begin(115200);
    Serial.println("I2C Scanner");
}
void loop()
{
    byte error,
        address;
    int nDevices;
    Serial.println("Scanning...");
    nDevices = 0;
    for (address = 1; address < 127; address++)
    {
        Wire.beginTransmission(address);
        error = Wire.endTransmission(false);
        if (error == 0)
        {
            Serial.print("I2C device found at address 0x");
            if (address < 16) Serial.print("0");
            Serial.print_long(address, HEX);
            Serial.println("  !");
            nDevices++;
        }
        else if (error == 4)
        {
            Serial.print("Unknow error at address 0x");
            if (address < 16) Serial.print("0");
            Serial.println_long(address, HEX);
        }
    }
    if (nDevices == 0) Serial.println("No I2C devices found\n");
    else Serial.println("done\n");
    delay(5000);
}

以上。