02-Quick_Start_Guide

This guide is designed to help users quickly get started with the motherboard, including board power-on, display connection, debug serial port, ADB, SSH connection, and other contents.

Board Power-on

Power Supply Methods

The K5C board supports multiple power supply methods. Verify hardware version compatibility.

Power Supply Method
Voltage
Board Version

DC

12V

>= V1.0

Type-C

5V

>= V1.1

POE

12V

>= V1.0

BAT

> 3.7V

>= V1.2

DC Power Supply

image-20250322093752078
image-20250322093804013

For other power supply details, refer to K5C Board Power Supply.

LED Status

  • Green LED: Power indicator (steady on when powered).

  • Blue LED: Heartbeat indicator (blinks after kernel boot).

  • Troubleshooting:

    • No green light: Check power supply.

    • No blue light blinking: System malfunction.

Display

The motherboard supports LVDS screens and MIPI screens.

By default, the system is adapted for a 7-inch LVDS screen. To switch to another display, refer to Image Burning to burn the corresponding image.

Important Notes

  • Ensure the motherboard is powered off before connecting the screen.

Supported MIPI Screens

Model

Size

Resolution

Touch Support

AT101DS40I

10.1-inch

800x1280

Y

MX101BA1340

10.1-inch

800x1280

Y

MX080B2140

8.0-inch

800x1280

Y

F050008M01

5.0-inch

720x1280

Y

Supported LVDS Resolutions

Resolution

Touch Support

1024x600

Y

1920x1080

N

Available 7-inch LVDS Screen Model: MX070IBC

Hardware Connection

When connecting the screen’s FPC flex cable:

  • Blue side must face up.

  • White side must face down.

  • Insert into the LVDS_LCD interface.

Connection diagram:

Debug UART

Baud Rate

Set to 115200.

Debug Serial Cable Description

UART Debug dongle has 4 wires：

  • Green: TX

  • White: RX

  • Black: GND

  • Red: VCC (do not connect)

Serial port cable

Board DEBUG Pins

K5C

image-20250515104514334

Wiring Method

image-20250515105006940

Serial Port Assistant Software Download and Use

Download Serial Port Assistant Software

The serial port assistant software can be downloaded by yourself. Take Mobaxterm as an example below.

location in cloud disk：

5-DevelopmentTools\UART_DebugTool\MobaXterm_Portable_v20.3.zip

Software official website download:https://mobaxterm.mobatek.net/

Mobaxterm Operation steps

  1. Create a new session window.

  2. Select the session window type as "serial".

  3. Select the serial port COM number (open the Windows Device Manager -> Ports interface to view the COM number).

  4. Select the serial port baud rate as 115200.

  5. Start the session window.

image-20250509173628697

ADB

ADB (Android Debug Bridge) is a debugging bridge tool for the Android system, which supports connecting to devices via USB or network, and can realize device management and debugging operations such as application installation, file transfer, and command execution.

Android system supports ADB function, see details ADB_Tutorial

SSH

SSH (Secure Shell) is a network protocol used to establish a secure remote connection on an insecure network. It provides encryption and authentication mechanisms to ensure the confidentiality and integrity of data. Through SSH, users can securely manage remote servers, transfer files, and access remote resources.

Support SSH function usage, see details SSH

image-20250411103217477

FAQ

Power Supply Issues

When the motherboard is connected to many peripherals, resulting in high power consumption, after connecting the power supply, the power-on green light may be dim or not remain on, and the system startup may also be abnormal.

Solution：This is generally a power supply problem. Please check whether the power consumption of the corresponding power supply is sufficient and whether it can support the power supply of the connected peripheral modules.

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