Do I sound tired? In my defense, I recorded this at 10pm on the night before I flew to China. That's also why I say uh and um a lot.

Full video: https://www.youtube.com/watch?v=pcPzmDePH3EEnjoy the first look at the final Pebble Time 2 design! Check out all the details on the blog post: https://ericmigi.com/blog/pebble-time-2-design-revealLike what you see? You can pre-order it today on https://store.rePebble.com

This is the first in a series of posts exploring how to build a smartwatch in 2025! Plus a dive into my box of ancient hardware projects.

Special guest - Jingming, CEO of SiFli

SF32LB52x reference guide: https://drive.google.com/file/d/1FV5-n6thM8XkzVQeAap2eJv97sCO_NrG/view

Github: https://github.com/OpenSiFli

Get a new PebbleOS watch!

https://store.rePebble.com

0:00 Intro

0:55 What makes up a smartwatch?

1:50 Tour of my Ancient History box

5:27 Movie magic in the first Pebble Kickstarter 😅

6:19 Constraint maximization

8:22 Hardware subsystems

9:23 Picking components...

10:06 How do you pick a chip?

12:33 What is an MCU?

15:30 Core 2 Duo MCU

16:43 Core Time 2 MCU reveal!

19:15 Why we picked SiFli SF32LB52J chip

21:20 Interview with Jingming - SiFli CEO

21:37 Why did you start a silicon company?

22:30 What's your background?

25:20 How does one start a silicon company?

32:21 What was your insight that drove SiFli?

35:30 SiFli and open source (no NDA needed)

37:30 What does your dream smartwatch look like?

41:15 Favourite gadgets

44:00 Future of MCUs

47:30 Favourite embedded hack

Introducing my new podcast - Tick Talk w/Eric Migicovsky! Listen to me ramble as I discuss PebbleOS, smartwatches, gadgets and news from the Pebble community. Chapters00:00 Intro01:21 quick project status update01:41 First Core 2 Duo watch demo!05:08 Tariffs - woah08:35 What new software features am I thinking about?12:23 EU DMA ruling on smartwatch interoperability 14:30 Future plans for Core Devices16:37 ChatGPT on Pebble?18:41 Why do I wear a smartwatchPre-order a new PebbleOS watch @ https://store.rePebble.comRead more about the EU DMA ruling on smartwatch interoperability (1) https://techcrunch.com/2025/03/19/eu-...(2) https://ec.europa.eu/competition/digi...My Bluesky: https://bsky.app/profile/ericmigi.comMy Twitter:   / ericmigi  My blog: https://ericmigi.com