I’m trying to count the time that passes from turning a relay on

[Gunner]

There are lots of ways to track time, a incremented counter every x amount of time, etc…

C++ Blynk (Legacy) - Code Examples for Basic Tasks

#22 - Super Simple Duration Counter OK, 'fess up time… I have rarely used millis() unless it was already included in some example or snippet copied from elsewhere, so I just assumed using it for actual human readable time was difficult… Well, it is not!! V0 is a Button Widget set to switch mode V1 is a Display Widget And that is it… If all you need is a readable Hours/Minutes/Seconds duration display, without using Time library, RTC, etc. then here you go. EDIT - Updated to count d…

And using BlynkTimer and a timeout Timer, you can have a relay turn on with a button press and automatically turn off x amount of time later.

C++ Blynk (Legacy) - Code Examples for Basic Tasks

#24 - Timed Button Widget Just cuz it keeps getting asked for It is an improved & simplified version of my Latch & indicator example in my #12 - Timers Simplified post above. Set your vPin, dPin and timeout accordingly… And exchange the digitalWrite() for whatever you want to happen for the timed duration int latchButton; int latchFlag; //===== Timeed latching button ===== BLYNK_WRITE(vPin) { // Button Widget set as switch latchButton = param.asInt(); if …

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