What you need to build CDU32

You’ll have to assemble parts to build CDU32.

List of parts

  • 1 x ESP32 Wroom devkit
  • 1 x ILI1394 3.5 inch display
  • 1 x Double concentric rotary encoder and caps, with push button
  • 2 x Momentary push button
  • 1 x buzzer
  • 1 x yellow LED
  • Wiring cable

Tools

  • Soldering iron and tin

Cabling

ESP32 GPIO TFT display ILI9341
15 (pin23) TFT_CS
4 (pin26) TFT_RESET
2 (pin24) TFT_DC
23 (pin37) TFT_SDI/MOSI
18 (pin30) TFT_SCK
3.3v TFT_LED
19 (pin31) TFT_SDO/MISO
18 (pin30) T_CLK
25 (pin 9) T_CS
23 (pin37) T_DIN
19 (pin31) T_DO
26 (pin10) T_IRQ (used for fast TS readings)
ESP32 GPIO twin rotary encoders
13 (pin15) ENC1 A
12 (pin13) ENC1 B
GND ENC1 COMMON
14 (pin12) ENC2 A
27 (pin11) ENC2 B
GND ENC2 COMMON
ESP32 GPIO buttons
32 (pin 7) button1
GND button1 COMMON
33 (pin 8) button2
GND button2 COMMON
5 (pin29) button3 (auto pilot)
GND button3 COMMON
ESP32 GPIO lights
17 (pin28) LED + (autopilot)
GND LED COMMON
ESP32 GPIO buzzer
16 (pin27) buzzer +
GND buzzer -

How to program CDU32

CDU32 configuration to adapt to your network settings is done by editing include/config.h file:

  • Copy include/config_template.h to include/config.h
  • Set Wifi network parameters: SSID and password

  • Set MQTT server parameters: IP address

  • Build program and upload it to ESP32
  • You are readu to run CDU32