PTH's embedded Raspberrypi tools and tweaks: Difference between revisions
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Then, install the following packages to do some basic i2c tinkering: | Then, install the following packages to do some basic i2c tinkering: | ||
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
sudo aptitude -y install i2c-tools | sudo aptitude -y install i2c-tools | ||
sudo aptitude -y install python3-smbus | |||
</syntaxhighlight> | </syntaxhighlight> | ||
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sudo i2cdetect -y 1 | sudo i2cdetect -y 1 | ||
</syntaxhighlight> | </syntaxhighlight> | ||
== Snake charming: Python programming == | == Snake charming: Python programming == | ||
Revision as of 14:12, 5 November 2021
I2C
Config
Enable I2C support by configuring the interface with raspi-config and do a reboot to load the kernel drivers.
Check if the kernel drivers were loaded at startup:
lsmod | grep i2c
For a Raspi 3B the result should look something like this:
i2c_bcm2835 16384 0
i2c_dev 20480 0
CMD Line Tools
Then, install the following packages to do some basic i2c tinkering:
sudo aptitude -y install i2c-tools
sudo aptitude -y install python3-smbus
The i2cdetect tool can be used to search the bus for nodes. But Obacht, not all nodes are detected this way.
sudo i2cdetect -y 1
Snake charming: Python programming
Then, install the following packages for i2c support in python:
sudo pip3 install smbus2