Trending
Andrew Childs's Avatar

Andrew Childs

@andrewchilds

Software maker. https://subtractive.computer, previously https://shortcut.com

85
Followers
17
Following
6
Posts
07.09.2023
Joined
Posts Following

Latest posts by Andrew Childs @andrewchilds

What's nice about the Pebble is that because the watch never loses BLE pairing with the phone, I can go into settings on the watch and back to force a refresh, which takes only a second. With my own smartwatch I had to bring the iOS app into the foreground every so often to get it to pair again.

30.01.2026 19:30 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Video thumbnail

The BLE connection between the Pebble and the iOS app is rock solid in my testing, however once my iPhone is inactive, iOS throttles the Pebble app to only a single Dexcom API request per hour, as seen here. While wearing the watch, the connection and data seems more reliably up to date.

30.01.2026 19:22 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Post image

Over the weekend I ported the smartwatch software from my custom T1D smartwatch to the new Pebble 2 Duo. I'm enjoying the always-on e-paper screen, however it can be challenging to read, especially in low light conditions. github.com/andrewchilds...

21.01.2026 19:55 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Preview
Building a (T1D) smartwatch from scratch Documenting an attempt to build a single-purpose smartwatch.

I wrote about the process of building a T1D smartwatch from scratch for my son: andrewchilds.com/posts/buildi...

31.01.2025 18:51 πŸ‘ 3 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

Thank you Rahim!

31.01.2025 16:43 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
A photo of a M5Stick device with a Dexcom-like CGM display.

A photo of a M5Stick device with a Dexcom-like CGM display.

Current side-project: seeing if I can get a Dexcom-like CGM UI on a tiny $20 watch, so my son doesn’t have to carry his devices with him on the playground. tldr: it works! but battery life is probably far too short to make it work as a watch. An e-ink display might work better. #t1d

15.09.2023 20:14 πŸ‘ 6 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0