I. Solution Overview

This product is developed and designed using the SigmaStar SSD202D, a highly integrated system-on-chip (SoC). The mainboard is based on the ARM Cortex-A7 dual-core 1.2GHz architecture, equipped with 128MB built-in DDR3 RAM and 2Gbit (256MB) external NAND Flash, and runs on the Linux operating system. It supports functions such as Type-C interface, serial port, built-in power amplifier (supporting 8Ω 1W speaker audio output), and wired network interface for firmware upgrades.

General Features:

1. Product Model: CKA02S
2. Product Name: Small-Screen Display
3. Product Type: For smart home, security display, and in-vehicle applications
4. Usage Environment: Simple operation display scenarios
5. Software Environment: Linux

II. Solution Features

1. Hardware Specifications:

2. Software Specifications

Ⅲ. Board structure

1. Board interface:

2. Board size:

Ⅳ. Precautions for use

• Relative humidity ≤ 80%
• ESD protection is required for the whole machine assembly process.
• When assembling the whole machine, be gentle and do not deform or twist the board, and do not press it hard.
• The wiring of the whole set should be reasonable, and the wires should not pass directly through the PCB board as much as possible, especially not through the main IC, to avoid affecting the EMC performance of the whole set of equipment.

Ⅴ. Application scenarios

This solution has the characteristics of high integration, rich interface configuration, and good cost performance. It can be widely used in vehicle-machine interaction, massage chair intelligent interaction, instrument display, smart home appliances, smart voice interaction equipment, AIoT and other application scenarios.