Write a setpoint From Blynk to arduino to control Relay

[John93]

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How to add slider in blynk to control temperature setpoint

Hello blynkers, i am currently new in programming and I need help with my project. I already successfully display the temperature & humidity in my Blynk app using DHT11. Can someone show me how use slider widget to control my desired temperature to activated my relay module? Any advice and help would be great. p/s: Iam using nodeMCU(esp8266), DHT11 and relay module. Below are my current code DHT dht(DHTPIN, DHTTYPE); BlynkTimer timer; // This function sends Arduino's up time every second t…