Adafruit DS2484 Shield
Overview
The Adafruit DS2484 I2C to 1-Wire Bus Adapter Shield features an Analog Devices DS2484 1-Wire Master and two STEMMA QT connectors.
Requirements
This shield can be used with boards which provide an I2C connector, for
example STEMMA QT or Qwiic connectors.
The target board must define a zephyr_i2c node label.
See Shields for more details.
Pin Assignments
Shield Pin |
Function |
|---|---|
SDA |
DS2484 I2C SDA |
SCL |
DS2484 I2C SCL |
1WIRE |
Connection to 1-Wire devices |
SLPZ |
Digital input for sleep mode |
See maxim,ds2484 for documentation on how to adjust the
devicetree file for sleep mode etc.
Programming
Set --shield adafruit_ds2484 when you invoke west build. For example
when running the 1-Wire scanner 1-Wire scanning sample:
# From the root of the zephyr repository
west build -b adafruit_qt_py_rp2040 --shield adafruit_ds2484 samples/drivers/w1/scanner
Connect one or several 1-Wire devices to the shield before running the scanning sample.