
GC 9A01
240×240
16bit TFT
GPIO00
BTN1/
FLASH
CH340E
USB-
SERIAL
EN
RESET
GPI O10
BTN2
DS3231MZ
RTC
GPIO13
BTN3
ESP32
240×240MHz
320kB RAM
4MB FLASH
BMA400
ACCEL./STEP.
again but I got it to work (Figures
F
and
G
). The
only drawback — the signal isn’t stable when
tracking satellites while the device is strapped
to your wrist. It’s been an interesting learning
experience that will be continued in the future.
A Watch’s Nemesis: Water
While wearing the Open-SmartWatch on a daily
basis I noticed that the biggest issue was that
any droplets from rain or washing hands had
a chance of making their way inside the case.
As the enclosure was 3D printed with four
buttons, a USB ...