Learn ZEPHYR-RTOS with Real Code Examples

Blinking LED and reading GPIO buttons

Sensor data acquisition and processing in threads

BLE-based wearable communication

MQTT client sending sensor data to cloud

Low-power sleep modes with scheduled wake-ups

Verify board and toolchain configuration

Check thread priorities and stack sizes

Ensure device drivers are initialized correctly

Use logging and printk for debugging

Monitor real-time behavior with RTOS tracing tools

Test application on supported board first

Use Zephyr logging and shell commands

Check thread scheduling and latency

Verify peripheral initialization and communication

Use unit tests for driver and module validation

Flash firmware to MCU

OTA updates for connected devices

Integrate with CI/CD pipelines for embedded firmware

Deploy networked applications with security configurations

Monitor deployed devices via logging or cloud dashboards

Zephyr SDK and toolchain

west meta-tool for project management

CMake and Ninja for build system

Segger J-Link or OpenOCD for debugging

Zephyr sample apps and board support packages

IoT protocols: MQTT, CoAP, HTTP

Networking stacks: IPv4/IPv6, BLE, 6LoWPAN

Peripheral drivers: sensors, GPIO, UART, SPI, I2C

Cloud services and SDKs

RTOS tracing and logging tools

Reuse existing Zephyr modules and sample apps

Leverage device tree for peripheral management

Use west for dependency management and builds

Enable only necessary kernel features

Profile and optimize threads and memory usage

Understanding preemptive vs cooperative multitasking

Optimizing memory and CPU usage on constrained MCUs

Debugging real-time concurrency issues

Configuring Zephyr modules and Kconfig options

Maintaining portability across multiple boards