Wiring of displays and pushbuttons - TomBric/stratux-radar-display GitHub Wiki

Wiring the OLED 1.5 inch display

Connection	PIN# on Raspberry	Cable color
VCC	17	red
GND	20	black
DIN/MOSI	19	blue
CLK/SCK	23	yellow
CS/CE0	24	orange
DC	18	green
RST	22	white

Wiring the Epaper 3.7 inch or the 1.54 inch display

Connection	PIN# on Raspberry	Remark
VCC	17
GND	20
DIN/MOSI	19
CLK/SCK	23
CS/CE0	24
DC	22
RST	11
BUSY	18
PWR	1	* e-Driver-Hat Rev. 2.3 only !!! optionally PIN2 *

*Important remark for e-Paper Driver Hat Waveshare 13512 Rev. 2.3: Waveshare introduced a 9-cable connection since Rev. 2.3. The additional cable PWR (red) needs to be connected to 3.3 V or 5V. So connect it to PIN#1 or PIN#2 on the Raspberry GPIO. Remark: If you have a barometric sensor or ahrs connected you may have conflict with GPIO Pin 11. You can also use PIN 16 (GPIO 23) for the RST line.

To do that please modify in /home/pi/stratux-radar-display/main/displays/Epaper_3in7/epdconfig.py:

   # RST_PIN         = 17    # if directly as hat
   RST_PIN = 23  # for cable mounted in stratux on different GPIO 23, which is PIN 16

Wiring of the pushbuttons for the user interface

Pushbutton	PIN# on Raspberry
Left	37
Middle	38
Right	40

All pushbuttons are used as pull down. Connect the other side of all buttons to GND (PIN39).