After we have connected Arduino with Blynk, we have to add the following line at the setup method.
pinMode(LED_BUILTIN, OUTPUT);
And on the Blynk app we add a button and we can control the light.
After we have connected Arduino with Blynk, we have to add the following line at the setup method.
pinMode(LED_BUILTIN, OUTPUT);
And on the Blynk app we add a button and we can control the light.