A modern and elegant Bluetooth-LE OLED smartwatch, based around the Atmel ATSAMD21-G18A ARM Cortex M0+ Microcontroller, and nRF8001 BLE chip
Upon assembling the Rev. A boards, it turns out both the battery gauge and the BMP280 were wired wrong... FAIL !
Nonetheless, I have started work on implementing BLE connectivity, and it is looking pretty good so far, with a link with an iPhone already being achieved.
I have also decided to swap the LSM303 with the Bosch BNO055, which will allow for more precise compass measurements and also adds a gyroscope, which I plan to use for a "flick of the wrist" wake.
The power section will also be improved, ditching those "old tech" SOT-23 charger and regulator with nice DFN and QFN package chips, the TI BQ24075 battery charger and power path management IC, and the TI TPS71433 3.3V LDO Regulator, thus going full Texas Instruments on the power section.
Finally, I have also implemented haptic feedback with the TI DRV2605 haptic controller, to have some haptic feedback for button presses, IOS notifications, etc.
More updates to follow
The PCBs have been ordered from OSHPark, and should come soon. Next update will be when I assemble them !
For now, here are some pictures of the OSHPark Render:
I've finally started work on the RWatch, and already have part of the UI done. The next step will be to create an animated menu, and add other sofware features such as a stopwatch.