I would use something like 4k7 resistors (but note that the hardware bus on GPIO 2/3 uses 1k8 resistors).
#Raspberry pi zero w pinout pdf pdf#
And the 40pin GPIO is unpopulated which provides the flexibility to use only the connections that the project. As much a work of art as a reference guide, the PDF is strikingly designed and covers a multitude of boards - including the Raspberry Pi Zero 2 W and Raspberry Pi Pico - cables, modules, and other. The Raspberry Pi Zero supports mini connectors (like mini HDMI, mini USB power, and USB on-the-go port) to save more space. $ i2cdetect -y 3Ġ0: -ġ0: -Ģ0: -ģ0: -Ĥ0: -ĥ0: -Ħ0: -įull instructions are given in /boot/overlays/README.įor reliability I suggest the use of external pulls to 3V3 on the GPIO used for SDA and SCL. Raspberry pi Zero GPIO Pinout or Pin diagram, and programming methods are explained in detail in this post. You may use the same software to talk to the bus as you would use to talk to a hardware bus. The successor to the breakthrough Raspberry Pi Zero W, Raspberry Pi Zero 2 W is a form factorcompatible drop-in replacement for the original board. dtoverlay=i2c-gpio,i2c_gpio_sda=5,i2c_gpio_scl=6,bus=3Ī new I2C device with bus number 3 will then appear in /dev. Adafruit Industries, Unique & fun DIY electronics and kits Raspberry Pi Zero 2 W : ID 5291 - Raspberry Pi Zero 2 W is the latest product in Raspberry Pis most affordable range of single-board computers. Setting up a software I2C bus is very simple with device tree.įor I2C bus 3 using GPIO 5 as SDA and GPIO 6 as SCL add the following entry to /boot/config.txt and then reboot.
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