Please try not to post random help requests into other topics. I moved your question into a topic of it’s own… Thank you.
Be aware, we are not going to simply write your code for you, and programming timer loops to control things like relays is not a Blynk specific task… As @Jamin has asked, please show us what you have so far, and if able and applicable, we will guide you.
When posting any code here, please follow the formatting guides:
