Interesting. Shame there’s no GPS, though. As a cyclist I’d love a hackable GPS device that isn’t a (fragile, bulky) smartphone.
Check BangleJS then
That looks really interesting - thank you!
Open Source Smartwatch
101–110 of 251 posts
Re: Open Source Smartwatch
#102Earlier quoted context omitted.
Bluetooth with onboard music (on some newer fitness watches) really sealed the deal for me. After going through a Pebble some years ago, I realized that I didn't actually care about the "smart" features as long as my next watch had excellent GPS performance, Spotify or some other music platform, and an always-on display to tell the time.
Any recommendations? I would love a watch that was dumb as a brick but played music and had gps. Bonus points if it is extremely simple.
Check out Garmin, tom-tom
Re: Open Source Smartwatch
#103I’m not so sure if this is significant other than for the fact that it’s being distributed by PINE64. There are plenty other junk reprogrammable “smartwatch kit” that reuse Huami/Xiaomi-brand smartwatch enclosures while genuine Huami goes on to collect data more strategically at a larger scale. Recently I got a Mi Band 5 and learned they transfer BLE pairing over platforms - they make devices generate new MAC when un…
Are the Huami ones open source or hackable?
Not really, no. Sort of.
I have a Mi Band 5, and wanted to use GadgetBridge instead of the official Mi Fit or Amazfit/Zepp app.
I was surprised to learn this was not easy to do. I needed to retrieve the Bluetooth MAC from the proprietary app via rooted app, or by logging in via script, which no layman would do.
The watch is now paired with GadgetBridge, but the steps are hard enough to dissuade anyone from trying it.
Re: Open Source Smartwatch
#104See also the TTGO T-Watch-2020 which is based on an ESP32 processor. [1]: https://www.tindie.com/products/ttgo/lilygor-ttgo-t-watch-20... [2]: https://github.com/Xinyuan-LilyGO/TTGO_TWatch_Library
Does it the watch have support for Lua? It's popular language around ESP32 but it's not mentioned on any product materials.
Is the size some standard? I would prefer some other belt but don't know how to search for it?
Re: Open Source Smartwatch
#105I have a pinetime and the form factor is great (until I lost the back plate, next one will be sealed). All the opensource activity around the watch is also great. The biggest drawback to me is only 64k of ram. Thats a Commodore64's worth of ram. The 240x240 screen is 57kbytes, it must have its own display ram. Also NordicSemi never seemed to be particularly opensource friendly. I'm hoping for a future RISCV edition o…
Yeah, the original Apple watch had like half a GB, and a raspberry pi zero ($5 price) has the same. Couldn't they have fit that within both budget and size?
It's a microcontroller rather than an application chip - so the amount of RAM will always be significantly less. A really beefy high end microcontroller might have 1MB of internal RAM - and for most applications that's more than enough.
Re: Open Source Smartwatch
#106Earlier quoted context omitted.
You might have just convinced me to buy the devkit. What do you use it for in your masters thesis?
Sadly I'm not sure what I'm allowed to make public just yet because I write the thesis for my company :(
Definitely post that thesis here when you're done. We'd all like a read!
Re: Open Source Smartwatch
#107Earlier quoted context omitted.
Yeah, the original Apple watch had like half a GB, and a raspberry pi zero ($5 price) has the same. Couldn't they have fit that within both budget and size?
It's a microcontroller rather than an application chip - so the amount of RAM will always be significantly less. A really beefy high end microcontroller might have 1MB of internal RAM - and for most applications that's more than enough.
Ohhhhh, I didn't realize that. Makes a lot more sense, I guess it is a better comparison to an Arduino than a raspberry pi.
Re: Open Source Smartwatch
#108I have a pinetime and the form factor is great (until I lost the back plate, next one will be sealed). All the opensource activity around the watch is also great. The biggest drawback to me is only 64k of ram. Thats a Commodore64's worth of ram. The 240x240 screen is 57kbytes, it must have its own display ram. Also NordicSemi never seemed to be particularly opensource friendly. I'm hoping for a future RISCV edition o…
Yeah, the original Apple watch had like half a GB, and a raspberry pi zero ($5 price) has the same. Couldn't they have fit that within both budget and size?
> Couldn't they have fit that within both budget and size?
Oh they could have. The problem is: it's extremely hard to get access to powerful SoCs - the vendors simply won't work with you and most of the documentation is under NDA.
Re: Open Source Smartwatch
#109This is awesome! I've been looking for an open source alternative to my Fitbit since Google bought the company. I'm really just looking for something that can track my health data + sleep and has an api to get the data in a raw form for further analysis.
Might want to look at an Amazfit bip paired with Gadgetbridge. Gadgetbridge can export sleep, heartrate, and exercise data. It exports as a db though I have yet to fool around with it or with my raw data.
Re: Open Source Smartwatch
#110I would totally buy it if I could order it locally in Europe. When I ordered a PinePhone from Hong Kong, it was just too much of a hassle for my liking. Waiting for an indefinite amount of time until it gets shipped and then deal with customs. I wonder how many customers there are per country. Would it make sense to have local distributors around the world? Or maybe at least one per continent?
I bought the Pinecil (temp-controlled soldering iron running on a RISC-C micro) and had no problems. Customs was ~$15 and fully automated (Sweden). Got it delivered in our mail box.