Example for HDMI Audio-Video Input
Last revision 2025/12/22
This article elaborates on setting up HDMI audio-video input using Raspberry Pi 4B and LattePanda 3 Delta. It details hardware preparation, screen connection, and mainboard installation, including the use of HDMI adapter modules. The guide highlights the necessity of additional power supply for Raspberry Pi to drive the display.
Hardware Preparation
- 15.6-inch IPS Touch Screen(SKU: DFR1045) ×1
- LattePanda 3 Delta(SKU：DFR0981) ×1
- Raspberry Pi 4 Model B - 4GB(SKU：DFR0619) ×1
- USB-A to USB-C data cable ×1
User Manual
Screen Connection
- The hardware preparation is as follows.
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Connect the screen as illustrated.
Mainboard Installation
The installation location is as shown in the diagram.
The following is the list of supported motherboards for installation.
| Mainboard | Type-C interface | HDMI interface | Accessory instruction |
|---|---|---|---|
| LattePanda Delta 3 | √ | √ | HDMI A to A Adapter Module (Interface Aligned) × 1, M3×6+8mm Single-Head Brass Standoff × 4, M3×6 Round Head Screw × 4 |
| LattePanda Delta | √ | √ | HDMI A to A Adapter Module (Interface Aligned) × 1, M3×6+9mm Single-Head Brass Standoff × 4, M3×6 Round Head Screw × 4 |
| LattePanda Alpha | √ | √ | HDMI A to A Adapter Module (Interface Aligned) × 1, M3×6+9mm Single-Head Brass Standoff × 4, M3×6 Round Head Screw × 4 |
| LattePanda | √ | √ | HDMI A to A Adapter Module (Interface Misaligned) × 1, M3×6+8mm Single-Head Brass Standoff × 4, M3×6 Round Head Screw × 4 |
| Raspberry Pi 4B | √ | HDMI A to D Adapter Module × 1, M2.5×6+8mm Single-Head Brass Standoff × 4, M2.5×6 Round Head Screw × 4 |
HDMI Adapter Module Instruction.
Example 1: Raspberry Pi 4B - HDMI Audio-Video Input
Utilize the provided HDMI A to D conversion module for HDMI connectivity. Subsequently, employ a USB data cable to establish a connection from the Raspberry Pi's USB port to the USB-C CN2 interface on the display driver board, enabling touch functionality. Refer to the illustration below.
Note: The USB port output current of the Raspberry Pi is insufficient to power the screen's activation. Hence, a separate power supply is necessary for the display driver board.
Example 2: LattePanda 3 Delta - HDMI Audio-Video Input
Utilize the provided HDMI A to A conversion module for HDMI connectivity. Subsequently, employ a USB data cable to establish a connection from the 3 Delta's USB port to the USB-C CN2 interface on the display driver board, enabling touch functionality. Refer to the illustration below.
Note: The USB port output current of Delta 3 is capable of powering the screen's activation, eliminating the need for a separate power supply for the display driver board.
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