How to get device to show up in i2cdetect?
i2cdetect can use different approaches for probing, such as read / write command, tuned by command line options. You may try -r or -q. If that doesn’t work, look at the command implementation and your device’s datasheet, and make sure probing is possible. The -r option made it show up.
Why is my I2C on my Raspberry Pi not detecting?
I2C on my Pi (s) is not detecting any slave. I am obviously missing something here, the PI’s I2C is “working” but do not detect the device. I did (and redid) everytghing suggested by Sirajo on I2C not detecting ? issues in hardware or any other?
How many devices are on the I2C bus 0?
On my i2c bus 0, I have two devices, 0x32 and 0x20. When I use i2cdetect, only one of them shows up.
Why are my I2C pins not going high or low?
If they do not go high and low on command then there is something wrong with the pins, if they do but you still cannot get I2C to work then your problem will need further investigation. Here is a really good guide which might help you!
Is You Looking at the correct I2C bus?
Are you looking at the correct I2C bus, between rev 1 and rev 2 the GPIO header was changed from using I2C 0 to I2C 1, see eLinux – RPi Low-level peripherals for details of the various pin changes. should scan both buses separately, if your devices show up after one of the calls then that is the bus they are on.
How to set up multiple I2C channels in Raspberry Pi?
Appendix A – Rpi4V raspbian 10 buster Python 3.7.3 Multiple I2C Channel Testing Notes Thanks for contributing an answer to Raspberry Pi Stack Exchange! Please be sure to answer the question. Provide details and share your research!
Why does Raspberry Pi not detect I2C devices?
I’m running raspbian on my pi and followed this tutorial to get the i2c going. i2cdetect -y 1 used to detect my i2c devices but doesn’t anymore. The sensor is connected like this: Could this be a software issue? Could this be a software issue? If lsmod | grep i2c shows i2c-dev is loaded and you have the device wired as shown, it’s pretty unlikely.
Why are lmsensors and i2detect not working?
So lmsensors, i2detect etc. all won’t work (unless you write or find an additional driver). The website of your USB-I2C converter you mentioned in the comments explains the protocol to use over the serial link: You send a sequence of bytes, and then optional receive a sequence of bytes as an answer.