Introduction. Learn how to connect the Raspberry Pi Camera Module to your Raspberry Pi and take pictures, record video, and apply image effects. to install the helper software and then sudo i2cdetect -y 1 at the command line, you should see ID #68 show up - that's the address of the DS1307, PCF8523 or DS3231! Once you have the Kernel driver running, i2cdetect will skip over 0x68 and display UU instead, this means its working!*Did* work in the hotel alarm-clock-ipod-dock that the Westin uses in Montreal, so it's not broken; kind of scratchy sounding but I'm almost 100% sure that it was that the dock itself wasn't very good - it's not like this adapter really has much in it other than wires :-) Nothing to complain about as far as construction and packaging ... When I run sudo i2cdetect -y 1 i I get [-] djcaff263Beginner[S] 0 points1 point2 points 2 years ago (7 children). This didn't work for me unfortunately, but thank you. Error 121 usually means Python can't talk to the device. If it's appearing in 'sudo i2cdetect' then I don't think it's a hardware issue.Jul 25, 2015 · When I work on my personal projects, it is not uncommon that projects are left for relatively a long time. Then I look into the implementation for maintenance purpose, but I do not remember much about them. So I feel more comfortable when things are organized and are explicitly declared.