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I will try connect 18B20+ termomether to raspberry pi 3.

It's how i do that: IMG

In /boot/config.txt i add:

dtoverlay=w1-gpio

After reboot in console, as root, I

modprobe w1-gpio

modprobe w1-therm

But after

ls /sys/bus/w1/devices/

directories list are empty.

Any ideas?

  • Yeah, you right ;p. I set bad pin in fritzing. – John Smith Apr 8 '18 at 10:58
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    You should not need the modprobes. That is automatically done by the dtoverlay in /boot/config.txt. A photo of your connections will be useful. – joan Apr 8 '18 at 11:09
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Ok, problem was solved by type in /boot/config.txt

dtoverlay=w1-gpio,gpiopin=4

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