Day 6: The hardware button
In yesterday’s test, you realised a simple control of an LED using the Blynk app. Today you’ll see that the control works in both directions. The push-button switch behind today’s door really comes in handy for this purpose. With it, you can expand yesterday’s circuit as follows:
You can scan the interface for today here:
In the Blynk app, there is a virtual currency labelled Energy. It prevents you from using very extensive projects or many smaller projects in the app at the same time. For you, that means that you may have to delete old projects starting on Day 8. But you can save your adapted project by creating a QR code and saving it somewhere.
As always, you’ll find today’s programme here:
Today, too, the WLAN data and the AUTH TOKEN of the project must be transferred into the programme. Each project has its own token, so you have to have the code re-sent or transfer it into the programme manually. After you start the interface with the Play button, you can again cause the LED on the breadboard to light up by tapping on the button. But you also see a change in the app if you push the button on the breadboard. Thus, the connection is possible in both directions.