New answers tagged i2c
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Python code cannot detect my i2c address
The I2C bus requires pull-ups to 3V3 on the SDA and SCL pins.
GPIO 2 (SDA) and GPIO 3 (SCL) have hard-wired 1k8 ohm resistors fitted on the Pi board.
If you use different GPIO for the I2C bus you will ...
- 69.3k
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i2cdetect doesn't catch ANY address (no device detection)
I had the same problem.
I solved it by adding to the /boot/config.txt
dtparam=i2c_arm=on
dtoverlay=i2c1,pins_2_3
and reboot the PI.
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Accepted
i2c Real Time Clock IC on Raspberry
Finally I found a solution!!!!
No building custom modules is needed, only stock kernel configuration.
The trick is that the I2c used bus IS NOT THE STANDARD ONE (i.e. usually with Raspberry the I2c ...
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How to run Hyperpixel 4.0 on I2C-0 (GPIO's 44&45)?
The I2C pins on the touch controller are wired to the software I2C pins (GPIO 10 & 11) on the display. Nothing you can do in software can move these PCB traces. The i2c_gpio driver that is loaded ...
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i2c Real Time Clock IC on Raspberry
Fiddling with modprobe is ancient history (as are customised kernels).
All modern Linux use Device Tree to configure hardware.
There a i2c-rtc overlay which adds support for a number of I2C Real Time ...
- 56.8k
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Change I2C address for ADS1015
I think the ADS1015 has 4 channels, all which can be read using the same address, you only need to change the I2C address if you have more ADS1015 chips or have a clash of addresses with other devices....
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How can Rpi4B use python to talk to the I2C DHT20 / SHT20 temperature and humidity sensor?
It seems like smbus is deprecated, but smbus2 works as well. Just adapt the code of @ultracold:
import time
import smbus2
address = 0x38 #Put your device's address here
i2cbus = smbus2.SMBus(...
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