Email when virtual pin is pressed

[Gunner]

@KanekiKen

Hey guys, I need a code that when i pressed v2(lock) and v3(unlock) its send to an email.

Well, start by breaking your needs into steps and lay it out psudocode style…

• Check for button/switch press
• determine it’s state (ON or OFF)
• open/close lock depending on state
• send email as required

Introduction

if - Arduino Reference

BLYNK_WRITE(V0) {  // This function is called eac time a Button, set for Switch Mode, on virtual Pin V0, is pressed
  if(param.asInt()==1) { // If button switch is ON
  // Open lock
  // send email saying unlocked
  } else { // If button switch is OFF
    // Close lock
    // send email saying locked
    }
}

But since email can’t be sent so frequently… you need to add in additional logic and timers.

• “Clear Flag” set for 5+ seconds before OK
• If need to send email, check if clear flag is OK
• If clear flag is OK, send email
• if clear flag is NOT OK wait until OK to send email, then reset flag

Now this one can be done in a few different ways… BlynkTimer, logic flags (if x==1 then do something, else don’t do something), or a combo of both.

Introduction

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

#12 - Timers simplified… perhaps… Some have a difficult time understanding timers… and since this is a fundamental building block of Blynk… I buried this reference in the middle of this entire topic Well anyhow… This is a “real world” timer example where i am using two timers to alternately turn ON and OFF an LED… yes, there are many ways to do this, but this example is all about timers. The first timer will run it’s assigned function 500ms (1/2 second) after boo…

Lay out your goals/steps/problems… then start work on the first problem, but substitute sending the email with sending a serial print message instead (no limitations there )… then work on the next step, and so on.