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Configure LEDs Ports

This guide offers step-by-step instructions to configure three ports for Pulse Width Modulation (PWM) to control three LEDs: green, yellow, and red. Follow the steps below to complete the configuration process.

Step 1: Turn on your system​

Turn on your board by plugging it into a power source using a USB cable or a DC adapter. Open your Tamra app and access your board from the app

tip
  • Sometimes you may need to wait a few seconds till your board and your Tamra app connect to cloud.
  • Built-in LED flickers until the board connects to the Tamra Cloud.
  • you can check the connection led in your app to make sure your Tamra app connects to the Tamra cloud.
  • It's a best practice to restart Tamra application especially when it shows a black screen.

access-node

Step 1: Test the Built-in LED​

Before proceeding, ensure the board is functioning correctly by testing the built-in LED. This step verifies that the board is operational and ready for further configuration.

Test Built-in LED

Step 2: Access Board Settings​

caution

Always disconnect any circuit connected to Tamra board before changing the board settings to avoid damaging the board.

Click on the settings icon to access the board’s configuration menu. This step allows you to make necessary adjustments to the board’s ports.

Click on Settings

Step 3: Enable PWM Ports​

Enable the ports needed for controlling the LEDs' brightness. Ensure that the correct ports are activated to avoid issues later in the configuration process.

tip

Identifying PWM Configurable Ports

  • The picture below highlights wave signs indicating ports can be defined as PWM output.

PWM-sign

caution

Ports 9 and 10 have the wave sign but cannot be configured as PWM outputs.

Enable Ports

Step 4: Set Ports to PWM Mode​

Set the ports to "Pulse Width Modulation Output" mode. This configuration ensures the ports can drive the LEDs and control their brightness effectively.

info

Ports of the Tamra board are reconfigurable. You can always reconfigure the pins based on your application needs. This flexibility allows you to adapt the board's functionality to different projects and requirements. When setting the ports to PWM mode, ensure that the selected ports support PWM functionality to avoid any configuration issues. Refer to the board's documentation for detailed information on port capabilities and limitations.

Set Ports to Output Mode

Step 5: Configure Three Ports​

Enable and configure three ports as "Pulse Width Modulation Output". These ports will be used to control the green, yellow, and red LEDs.

Enable Three Ports

tip

Always try to keep the built-in LED for testing the connection states of your board, your application, or your system generally. So, keep the configuration of port D13 as an output.

Step 6: Save Settings​

Click on the 'Save Settings' button at the end of this page.

save settings

Step 7: Test Configuration​

After configuration, test the board to ensure the port settings are properly configured. Verify that the Built-in LED lights up as expected.

Test Configuration

Conclusion​

By following these steps, you have successfully configured three ports as outputs to control the green, yellow, and red LEDs. If any issues arise, revisit the steps to ensure all configurations are set correctly.