4 ms·
This is nicely done, beautiful aesthetics. There are multiple phases (HW, SW, Mechanics) which would be impressive enough on their own. Kudos! Love the little
by tboerstad 7y ago
This is nicely done, beautiful aesthetics.
There are multiple phases (HW, SW, Mechanics) which would be impressive enough on their own. Kudos!
Love the little gifs to explain how it's done, especially the stenciling of the PCB.
I'm curious, how/why did you choose the DA14683 chip?
- tboerstad 7y agoQuoting the OP from the reddit thread: "I picked the MCU for a couple of reasons: -Very low power transmit/receive for the bluetooth (<4mA). I get around a week of battery life -Cheap -High speed on the SPI bus. The display writes are limited by the SPI bus. It requires a 9-bit word (additional bit is used for data/command). So being able to run the SPI bus at 48MHz is clutch. -Has PMIC integrated into chipset. I don't need to include additional circuitry for a buck-boost regulator or a lipo charger since the dialog part has it all built in! -Cheap"