Arduino read from sensor with I2C-Address 0x01

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Sebastian 2021-6-29

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/868408-arduino-read-from-sensor-with-i2c-address-0x01

Hi,

I have an I2C-Sensor, which has the address 0x01. That's obviously against the standard, but I can't do anything about it. The sensor is connected to an Arduino Mega2560. The wiring is fine, because I can get data from the sensor if I upload a sketch to the Arduino.

However, I don't get data from the sensor using the MATLAB® Support Package for Arduino®. It seems to me, that the Support Package doesn't support the sensor's address. The scanI2CBus function does not find the address, probably because it starts searching from address 8:

a = arduino('COM4', 'Mega2560', 'TraceOn', true)
addrs = scanI2CBus(a)

Output:

Arduino::Wire.begin();
Arduino::Wire.beginTransmission(8);
Arduino::Wire.endTransmission(1); --> 2
Arduino::Wire.beginTransmission(9);
Arduino::Wire.endTransmission(1); --> 2
.
.
.
Arduino::Wire.beginTransmission(119);
Arduino::Wire.endTransmission(1); --> 2
Device not detected on I2C Bus 0.
Make sure the I2C device is
properly connected to pins D20(SDA)
and D21(SCL). 