sinpana.blogg.se - Arduino wire library for raspberry pi

Now ls /sys/bus/w1/devices you should see two folders/links here: I'm using fresh installation of Raspbian Stretch Lite from on Raspberry Pi 3B+, SSH enabled.įirst run sudo raspi-config, go to 5 Interfacing Options and then P7 1-Wire, answer Yes then reboot.Īlternatively you can edit /boot/config.txt file and put that line at the end: dtoverlay=w1-gpio and reboot. Here's a very pretty drawing of how it should be connected:

Connect 4.7K (4700) Ohm resistor BETWEEN IO pin of EEPROM and wire that goes to RPi's GPIO 4, other side of this resistor stick directly to 3.3V output of RPi.

Connect IO pin to RPi's GPIO 4 (fourth from the left in the bottom row looking on RPi's such that power USB is towards you).

Connect GND pin to any of the RPi's GND GPIO directly.

So looking straight at the FLAT side of the EEPROM, going from left to right you have: GND, IO, NC.

I know it's old question but just in case someone will look for it in the future, here's how I made it to work:įirst the wiring, datasheet on Maxim is misleading at least for me.