ADV3 Display to CYD adapter

⚠️ Important: This adapter is only intended for the Adventurer 3 running Klipper.  
It is not compatible with the stock firmware. 
For support and discussion, please join the Klippventurer Discord:  
https://discord.gg/NhamDbpxSF

This is an adapter designed to connect the original Adventurer 3 screen to a 2.8-inch CYD (Cheap Yellow Display), primarily the ESP32-2432S028R. Other 2.8-inch models may also be compatible.  

You can use either Wi-Fi or USB for data transfer. If you choose USB, you will also need to follow this guide:  
https://github.com/MaizeShark/CYD-Klipper/blob/master/serial/README.md#install-linux 

💡 Recommendation:  

• If you want USB data, use a 180° USB-C (or micro-USB) adapter to the Raspberry Pi.
• If you are fine with Wi-Fi, the JST 1.25 mm connector is the simplest option. 

Installation  

1. Plug the CYD into your PC.  
2. Follow the installation guide here: https://github.com/MaizeShark/CYD-Klipper/blob/master/README.md#install

Wiring  

You have several options for powering and connecting the CYD:  

1. Connect the JST 1.25 mm connector to the Raspberry Pi’s 5 V pins (CYD pinout: https://github.com/witnessmenow/ESP32-Cheap-Yellow-Display/blob/main/PINS.md#p1).  
2. Use a 180° USB-C or micro-USB adapter to connect the CYD directly to the Raspberry Pi’s USB port.  
3. Use an FPC breakout board to draw 5 V from the original display cable.  
4. Use the Adventurer 3’s front USB-A port:  
   1. For power only, this should work without modification.  
   2. If you also want USB data, you must build an adapter cable from the original mainboard to the Raspberry Pi.  

Bill of Materials (BOM)  

• Original 4 screws (M3×10 self-tapping)  
• 4× M3×5 (or longer) screws  
• 4× M3 nuts  
• Adventurer 3 with Klipper (https://github.com/synthread/Klippventurer)  
• 2.8" CYD  
• One of the following power/data connection options:
  • 180° USB-C or micro-USB adapter
  • FPC breakout for the original FPC cable
  • Power/data taken from the Adventurer 3’s front USB port
  • JST 1.25 mm connector (or directly soldered to the pins)