I have recently installed Cayenne. Before I installed, I connected my BMP180 sensor, and ran the following, “sudo i2cdetect -y 1” which listed the address as 77 (therefore the Pi could ‘see’ the sensor.
After installing Cayenne, I tried to add the BMP180 as a sensor, I received an error message.
I tried again the ‘i2cdetect -y 1’ command, and got the following message “Error: Could not open file ‘/dev/i2c-1’ or ‘dev/i2c/1’ : No such file or directory”
Has Cayenne moved or overwritten the i2c stuff?
Please go easy on me, I’m a little new to IOT stuff