I highly recommend the compatible Colmi P8 smartwatch with waspos https://github.com/daniel-thompson/wasp-os which enables you to write micropython with access to all device features.
You can overwrite the stock firmware using bluetooth without having to open and solder wires.
Open Source Smartwatch
121–130 of 251 posts
Re: Open Source Smartwatch
#122Earlier 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.
I'm in the market for a similar smart watch/fitness tracker and have settled on the Garmin Vivoactive 4. It hits the sweet spot between a sports watch and a fitness tracker for me, plus the battery should last about a week between charges.
Re: Open Source Smartwatch
#123Earlier quoted context omitted.
Weirdly enough, I prefer the more "toy-like" Pebble buttons to the more "solid-looking" Pebble Time ones : they are easier to find without looking, and easier to press.
Having had both, the Pebble buttons got a bit gummy over time whereas the Pebble Time buttons are still very solid. The latter seem more well put-together, IMO.
Absolutely, I have used pebble time round since it came out, no button issues
Re: Open Source Smartwatch
#124Ok, just to make sure I understand this correctly. - This is basically a commercial smartwach (the Colmi P8) that is based on a well documented SOC, the nordic nRF52832 - The open source version comes with an enclosure that is not glued shut, so that it is easy to access testpoints on the pcb. - Development is done by accessing the nRF51 SWD interface with pogo pins or similar. The programming interface can be a stan…
There ya go: https://github.com/daniel-thompson/wasp-os
Nice!
Re: Open Source Smartwatch
#125The cost is crazy low. Any insight on if this will function as a standard smartwatch (ie buzz for alerts) out of the box, or do I need to write my own bluetooth driver for this to be useful?
I've heard it's already usable with Gadgetbridge on Android.
Re: Open Source Smartwatch
#126I 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?
Slapping on a more RAM on the PCB is not free energy-wise.
The watch only has a 180mAh battery that needs to provide power for an entire week.
Re: Open Source Smartwatch
#127This is what we (early people in the android wear team) wanted android wear to be, until word from the top came down that "it shall run android, or it shall not exist". The rest is history....
Re: Open Source Smartwatch
#128See 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
That looks great, does anyone have one of them? What's the battery life like? The ESP32 isn't very battery-friendly.
ESP32 in deep sleep modes is reasonably battery friendly (all depending on your frame of reference, of course.) 5uA in RTC-only and 10+ uA in RTC+ULP sleep.
Re: Open Source Smartwatch
#129Earlier quoted context omitted.
That looks great, does anyone have one of them? What's the battery life like? The ESP32 isn't very battery-friendly.
ESP32 in deep sleep modes is reasonably battery friendly (all depending on your frame of reference, of course.) 5uA in RTC-only and 10+ uA in RTC+ULP sleep.
That's true, but then you don't get notifications or anything, since it's essentially off.
Re: Open Source Smartwatch
#130Earlier quoted context omitted.
I am complaining that they don't provide one single OS experience. I didn't mention anything about walled gardens.
Why do you expect them to restrict what you can put on it (i.e. enforce a single OS), when the point seems to be for people to do whatever they want with it?
Because without a standard OS stack it is going to be the "Year of FOSS Watch"™.