I have been working through some i2c examples. Plugging it all together and I find that I need to install the i2c-tools package, then use raspi-config to enable the I2C system. The wiringPi gpio command has a shortcut to the i2cdetect command and running it gives Before 3 weeks everything working properly, detected 68. I didn't understand what is the problem !!! Can anyone one help me to solve this issue. The I2C bus allows multiple devices to be connected to your Raspberry Pi, each with a unique address, that can often be set by changing jumper settings on the module. It is very useful to be