Boards

These samples demonstrate some board-specific features in Zephyr.

96Boards 

LED matrix displayUse the 5x5 LED matrix display on the BBC micro:bit board.
Line following robotImplement a line following robot using a BBC micro:bit board and robot chassis.
Pong gamePlay pong as single player or over Bluetooth between two micro:bit devices.
SoundUse the piezo buzzer on the BBC micro:bit board.

Deep SleepUse deep sleep with wake on timer, GPIO, and EXT1 sources on ESP32.
Flash EncryptionEncrypt/decrypt data stored in flash memory using ESP32 flash encryption feature.
Light SleepUse light sleep mode on ESP32 to save power while preserving the state of the memory, CPU, and peripherals.
Memory-Mapped FlashWrite data into scratch area and read it using flash API and memory-mapped pointer.
SPIRAMAllocate memory from SPIRAM.
XTAL32K Watchdog Timer (WDT)Trigger watchdog interrupt on external 32K crystal failure.

Power Delivery AnalyzerImplement a basic Power Delivery Analyzer to determine if a USB device is currently charging.

Battery Voltage MeasurementMeasure the voltage of the device power supply.
Dynamic Pin ControlDynamically change pin configuration at boot time.
IEEE 802.15.4 over RPMsgExpose nRF IEEE 802.15.4 radio driver to another device or CPU using RPMsg transport.
LED matrixUse the nRF LED matrix display driver to drive an LED matrix.
Mesh ModelsSetup a Bluetooth Mesh node with various models (generic OnOff, generic Level, ...).
Mesh OnOff ModelControl LEDs on a mesh network using the Bluetooth Mesh OnOff model.
nRF5x Clock SkewMeasure the skew between the high-frequency and low-frequency clocks.
nrfxUse nrfx library to interact with nRF peripherals.
nrfx peripheral resource sharingUse nRF peripherals that share the same ID and base address.
Synchronized RTCSynchronize system and network core RTC clocks.
System OffUse deep sleep on Nordic platforms.

FLEXRAM magic addressConfigure an interrupt that triggers on arbitrary RAM/TCM address access.
Number crunching using optimized librarySet up and use different backends for complex math operations.
RT1060 System OffUse soft-off on MIMXRT1060-EVK.
RT595 System OffUse soft-off on MIMXRT595-EVK.
S32 Network Controller (NETC)Configure NXP S32 Network Controller (NETC)

Bluetooth Mesh badgeImplement a smart badge using the reel board and Bluetooth Mesh.

Backup SRAMUse Backup SRAM to store a variable that persists across power cycles.
Core Coupled Memory (CCM)Place and use variables in the Core Coupled Memory (CCM).
Hardware Semaphore (HSEM) Inter-Processor Communication on STM32 H7Use the Hardware Semaphore (HSEM) to trigger LED blinking from one core to another.
I2C V2 timingsRetrieve I2C V2 timings at runtime.
Master Clock Output (MCO)Output an internal clock for external use by the application.
SensorTile.box Pro sensorsRead sensor data from the various SensorTile.box Pro sensors.
SensorTile.box sensorsRead sensor data from the various SensorTile.box sensors.
Single-wire UARTUse single-wire/half-duplex UART functionality of STM32 devices.
STWIN.box sensorsRead sensor data from the various STWIN SensorTile wireless industrial node sensors.

Bluetooth: ST Interactive GUIExpose ST BlueNRG Bluetooth network coprocessor over UART.

ADC power managementUse ADC in a low-power context on STM32.
Blinky with power managementBlink an LED using the GPIO API in a low-power context on STM32
Bluetooth Low Energy Power Management on STM32WBPerform Bluetooth LE operations with Zephyr power management enabled on STM32WB.
GPIO as a wake-up pin sourceUse a GPIO as a wake-up pin source.
Serial wakeupWake up on serial activity on STM32.
Standby/Shutdown modeEnter and exit Standby/Shutdown mode on STM32.
STOP3 modeUse STOP3 low power mode on STM32U5.
Suspend to RAMUse suspend to RAM low power mode on STM32.

CC13x2/CC26x2 System OffExercise the various sleep modes on TI CC13x2/CC26x2 platforms.