What is it?
It is a ESP32 Watch development board. There are two versions: OLED version and TFT color version. Both version share the same bottom board.
Why did you make it?
This product was planned at the same time of deauther wristband. I learned a lot of experience from deauther wristband and I knew ESP32 is a better choice for a "Watch".
The break out pads are also designed to connect different sensors.
TX/RX could be used to communicate with computer or other control board.
17/16 is IIC port could be connected with RTC module or other IIC sensors.
SVP/SVN could input ADC signals.
25/26 could output DAC signals.
What makes it special?
Small size: 3.8x4.5cm
Height:1.5cm
Double 4 layer board
600mAh battery inside
On/OFF Power Switch
OLED version:1.3OLED SH1106(SDA-17,SCL-16)
TFT color version: ST7789 240*240 LCD(SDA-17,SCL-16,DC-22,RES-23)
Buzzer-32
WS2812b RGB LED-33
Navigation Button(Up-19,Center-18,Down-5)
OLED version external slide button(22,23)
Highlight LED(27)
Indicate charging LED(On means Charging,OFF means Full)
Reset and Flash Button at Bottom board
Break out GPIOs(TX,RX,17,16,SVP,SVN,25,26,GND,3V)
SD Card support
GPIO12--DAT2
GPIO13--DAT3
GPIO15--CMD
GPIO14--CLK
GPIO2--DAT0
GPIO4--DAT1
GPIO21--card
