Embark on a journey to enhance your Python skills by developing an application that leverages GPIO control and MQTT communication. Join us as we delve into the nuances of container setup, project creation, GPIO toggling, and MQTT integration.
Step-by-Step Guide:
- Container Setup and Project Creation: To get things started we establish an SSH connection to the Avnet Embedded SMARC module and install the required containers. After creating our first new project in VS Code using the Python template, we activate the debug mode, and modify the source directory.
- GPIO Control: In the second phase of the project, we utilize GPIOD and SimpleCoreIO to control a GPIO pin. Therefor we assume ownership of GPIO 4, configure it as an output, initialize its default value to zero, and implement code to toggle GPIO 4 every second.
- MQTT Integration: Finally, we set up the paho-mqtt library to connect to the MQTT broker and subscribe to all topics. Monitor the communication and use MQTTX Web to send messages and switch GPIO.
- Improving and Testing Your Application with VS code: We transmit messages to toggle GPIO 4 and verify the value changes using a multimeter. Additionally, we monitor the VS Code output to confirm the successful interaction between GPIO control and MQTT communication.
This episode demonstrates the versatility and straightforwardness of Python and SimpleSwitch™. By mastering this first project using GPIO control via MQTT you’ll be well-equipped to tackle more complex challenges in your next embedded software project.
Enhance your expertise in SimpleSwitch™ by visiting our homepage for more exciting projects and tutorials!
Embedded Software Sessions
