MicroPython Projects

Testing the commands

Testing our control of the LEDs just requires us to construct a JSON message, such as those that we created in the previous section. The steps to perform the test can be found here:

1. Verify that the TCP Socket Tester application is connected by verifying that it has 1 connected client and that you can see data packets streaming to the server from the sensor node.
2. In the Write here the info to send... section of the application, type in the following JSON message:

{“LED1”: “On”, “LED2”: “Off”, “LED3”: “On”}

3. Press the SEND button. You will find that your LEDs have now turned on!
4. Now, update the message to the following:

{“LED1”: “Off”, “LED2”: “On”, “LED3”: “Off”}

5. Press the SEND button. You'll see that the LED states ...