 <h1>Congratulations! 🎉 </h1>
    <p style="color:#637381;">All done! You’ve completed another milestone.</p>

To continue, please enter your email for authentication.

We’ve sent a 6‑digit code to #MAIL_ADDRESS#\nPlease check your inbox or spam folder and enter the code below to continue.

Verification code sent

Thank you for the payment. You can now access {collectionName} by simply clicking the button below.

Yes, you’ve successfully ordered! 🎉

Unlock This Exclusive Course

It seems that your email address is not currently on the authorized access list. Please ensure you are using the email address that was invited, or contact the content owner for assistance.

Verification Required for Access

Making Decisions

If and Else

Combining Conditions

Checking your understanding of conditions

Working With Time

millis and Non-Blocking Timing

Detecting a Long Press

Debouncing in Code

Checking your understanding of timing

Beyond On and Off

Fading with analogWrite

Designing Your Own Behaviour

Checking your understanding of PWM

Review

Session 4 Interactive Review

Session 4 of 8. Making the controller do something interesting — conditionals, logical operators, timing with millis(), long presses, button combinations and fading with PWM.

A button that lights an LED is a light switch. This session turns it into a controller — code that
reacts to how long you hold a button, what combination you press, and what happened a moment ago.

Session 4 — Firmware Logic

<div class="simple-box-wrapper"> <div class="simple-box"> <div class="column"> <h3>Description</h3> <div class="ck-horizontal-line"><hr></div> <p>I'm a paragraph. Click to start writing that will inform, inspire, or encourage your community. We know you have so many things to share with the world. Happy editing!</p> </div> </div> </div>