April 13, 2025

Good morning!

...

Let’s get used to tech little by little.

Let’s keep moving forward toward the future!

The “smartwatch” is just the beginning — eventually, it’ll team up with a “pager” to become something even cooler!

But first, let’s start with the basic clock function and build from there!

Anyway, the first thing we need to do is connect the microcontroller to the LCD panel.

That’s where the magic begins!

We also need to hook up a heart rate sensor.

Should we start by building the clock function, or jump right into the heart rate sensor?

Let’s start by building the heart rate sensor first.

That’s where things get really exciting!

Sure, if we use Arduino, it’d be super easy to build.

But come on… Arduino is kind of pricey and bulky, right?

Yeah, it’s big and expensive!

Light, cheap, and cool!

That’s our new motto from now on.

Yeah — it’s gotta be cool, no matter what!

And then… we sell it for at least 10 times the cost.

That’s the plan!

This is the heart of the business.

That’s how we win!

This time, we’re planning to use an ultra-compact, high-performance microcontroller — made in the USA.

And now, the key part — the heart rate sensor.

Yes, there are commercial products available.

But this time, we’re going to design our own.

This way, we’ll sharpen our skills and aim for a lower cost!

Let’s wrap it up here for today.

Starting tomorrow, we’ll finally begin designing the heart rate sensor.

So get ready — both mind and spirit!

Alright then, see you soon!