zephyr

History

Benjamin Cabé 9dabb21ced samples: sensor: paj7620: refactor handling of trigger mode The current sample was always trying to enable trigger mode in the driver no matter what, causing issues for instances where the sensor simply has no interrupt pin configured in Devicetree. Cleaned things up so that enabling trigger mode is done via the driver's Kconfig option, and cleaned up the Twister testcases accordingly (plus, made sure they are actually built by setting min_ram to a value compatibel with the nucleo_f334r8). README has also been updated to clearly document how to enable either mode. Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>		2025-07-22 08:16:06 -04:00
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boards
src
CMakeLists.txt
prj.conf
README.rst
sample.yaml
trigger.conf

README.rst

.. zephyr:code-sample:: paj7620_gesture
   :name: PAJ7620 Gesture Sensor
   :relevant-api: sensor_interface

   Get hand gesture data from PAJ7620 sensor.

Overview
********

This sample application gets the output of a gesture sensor (PAJ7620) using either polling or
triggers, and outputs the corresponding gesture to the console, each time one is detected.

Requirements
************

To use this sample, the following hardware is required:

* A board with I2C support (and GPIO to detect external interrupts in trigger mode)
* PAJ7620 sensor

Building and Running
********************

This sample outputs data to the console. It requires a PAJ7620 sensor.

Polling Mode
============

.. zephyr-app-commands::
   :zephyr-app: samples/sensor/paj7620_gesture
   :board: nucleo_f334r8
   :goals: build
   :compact:

Trigger Mode
============

In trigger mode, the sample application uses a GPIO to detect external interrupts, therefore GPIO
support must be enabled. Just like every sensor supporting trigger mode, it is possible to choose
between using a global thread (``CONFIG_PAJ7620_TRIGGER_GLOBAL_THREAD``) or a dedicated thread
(``CONFIG_PAJ7620_TRIGGER_OWN_THREAD``) for the interrupt handling.

.. zephyr-app-commands::
   :zephyr-app: samples/sensor/paj7620_gesture
   :board: nucleo_f334r8
   :goals: build
   :gen-args: -DEXTRA_CONF_FILE=trigger.conf
   :compact:

Sample Output
=============

.. code-block:: console

   Gesture LEFT
   Gesture RIGHT
   Gesture UP
   Gesture DOWN