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<div style="padding-left:200px">[[文件:Orange-pi-3lts-progressbarsuccess.png|400px]]</div>
5)At this time, you can pull out the TF card, then power on again, and the Android system in eMMC will start
=== '''2.9. Start the Orange Pi development board''' ===
1)The development board has an on-board eMMC, which has an Android9.0 image burned by default, and you can directly use the image in the eMMC to start and fully test the function when you just get the development board.<br>
2)If you need to use linux image, you can insert the TF card with the burned linux image into the TF card slot of the Orange Pi development board<br>
3)The development board has an HDMI interface, you can connect the development board to a TV or HDMI display through an HDMI to HDMI cable<br>
4)Connect the USB mouse and keyboard to control the Orange Pi development board<br>
5)The development board has an Ethernet port, which can be plugged into the network cable for Internet access<br>
6)Connect a 5V/3A high-quality power adapter<br>
<p style="padding-left:30px;color:#ff0000">a. Remember not to plug in the 12V power adapter, if you plug in the 12V power adapter, it will burn out the development board
b. Many unstable phenomena during the power-on and startup of the system are basically caused by power supply problems, so a reliable power adapter is very important</p><br>
7)Then turn on the switch of the power adapter, if everything is normal, the HDMI display will be able to see the startup screen of the system at this time<br>
8)If you want to view the output information of the system through the debug serial port, please use the USB to TTL module and DuPont cable to connect the development board to the computer. For the connection method of the serial port, please refer to the section on the use of the debug serial port
=== '''2.10. How to use the debug serial port''' ===
=== '''2.10.1. Debug serial port connection instructions''' ===
1)First, you need to prepare a 3.3v USB to TTL module, and then insert one end of the USB interface of the USB to TTL module into the USB interface of the computer
<div style="padding-left:200px">[[文件:Orange-pi-3lts-ttlmodule.png|600px]]</div>
2)The corresponding relationship between the debug serial port GND, TX and RX pins of the development board is shown in the figure below
<div style="padding-left:200px">[[文件:Orange-pi-3lts-ttlmodule1.png|600px]]</div>
3)The GND, TX and RX pins of the USB to TTL module need to be connected to the debug serial port of the development board through a Dupont cable<br>
<div style="padding-left:20px">
a. Connect the GND of the USB to TTL module to the GND of the development board<br>
b. Connect the RX of the USB to TTL module to the TX of the development board<br>
c. Connect the TX of the USB to TTL module to the RX of the development board
</div>
4)The schematic diagram of connecting the USB to TTL module to the computer and the Orange Pi development board is shown below
<div style="padding-left:200px">[[文件:Orange-pi-3lts-ttlmodule2.png|600px]]</div>
=== 2.10.2. How to use the debug serial port on the Ubuntu platform ===
1)If the USB to TTL module is connected normally, you can see the corresponding device node name under /dev of Ubuntu PC, remember this node name, you will use it when setting up the serial port software later
<div style="background:#f1f1f1;border:1px solid #000">
test@test:~$ '''ls /dev/ttyUSB*'''<br>
/dev/ttyUSB0
</div>
2)There are many serial debugging software that can be used under linux, such as putty, minicom, etc. The following shows how to use putty<br>
3)First install putty on the Ubuntu PC
<div style="background:#f1f1f1;border:1px solid #000">
test@test:~$ '''sudo apt update'''<br>
test@test:~$ '''sudo apt -y install putty'''
</div>
4)Then run putty, remember to add sudo permissions
<div style="background:#f1f1f1;border:1px solid #000">
test@test:~$ '''sudo putty'''
</div>
5)After executing the putty command, the following interface will pop up
<div style="padding-left:200px">[[文件:Orange-pi-3lts-putty.png|600px]]</div>
6)First select the setting interface of the serial port
<div style="padding-left:200px">[[文件:Orange-pi-3lts-putty1.png|600px]]</div>
7)Then set the parameters of the serial port<br>
<div style="padding-left:20px;">
a. Set the Serial line to connect to to /dev/ttyUSB0 (modify to the corresponding node name, generally /dev/ttyUSB0)<br>
b. Set Speed (baud) to 115200 (baud rate of the serial port)<br>
c. Set Flow control to None
</div>
<div style="padding-left:200px">[[文件:Orange-pi-3lts-putty2.png|600px]]</div>
8)After setting the serial port setting interface, return to the Session interface
<div style="padding-left:20px;">a. First select the Connection type as Serial<br>
b. Then click the Open button to connect to the serial port</div>
<div style="padding-left:200px">[[文件:Orange-pi-3lts-putty3.png|600px]]</div>
9)After starting the development board, you can see the Log information output by the system from the opened serial port terminal
<div style="padding-left:200px">[[文件:Orange-pi-3lts-putty4.png|600px]]</div>
=== '''2.10.3. How to use the debug serial port on Windows platform''' ===
1)There are many serial debugging software that can be used under Windows, such as SecureCRT, MobaXterm, etc. The following shows how to use MobaXterm. This software has a free version and can be used without purchasing a serial number.<br>
2)Download MobaXterm<br>
<div style="padding-left:20px;">
a.Download the MobaXterm URL as follows
</div>
https://mobaxterm.mobatek.net/
<div style="padding-left:20px;">
b.After entering the MobaXterm download page, click '''GET XOBATERM NOW!'''
</div>
<div style="padding-left:200px">[[文件:Orange-pi-3lts-mobaxterm.png|600px]]</div>
<div style="padding-left:20px;">
c.Then choose to download the Home version
</div>
<div style="padding-left:200px">[[文件:Orange-pi-3lts-homeversion.png|600px]]</div>
<div style="padding-left:20px;">
d.Then select the Portable version, after downloading, you don’t need to install it, just open it and you can use it
</div>
<div style="padding-left:200px">[[文件:Orange-pi-3lts-mobaxterm1.png|600px]]</div>
3)After downloading, use the decompression software to decompress the downloaded compressed package, you can get the executable software of MobaXterm, and then double-click to open it
<div style="padding-left:200px">[[文件:Orange-pi-3lts-mobaxterm2.png|600px]]</div>
4)After opening the software, the steps to set up the serial port connection are as follows<br>
<div style="padding-left:20px;">
a. Open the session setting interface<br>
b. Select the serial port type<br>
c. Select the port number of the serial port (choose the corresponding port number according to the actual situation), if you can't see the port number, please use the <span style="color:#003aff">360 driver master</span> to scan and install the USB to TTL serial chip driver<br>
d. Select the baud rate of the serial port to be 115200<br>
e. Finally click the '''"OK"''' button to complete the setting
</div>
<div style="padding-left:200px">[[文件:Orange-pi-3lts-setupserialport.png|600px]]</div>
5)After clicking the '''"OK"''' button, you will enter the following interface, and you can see the output information of the serial port when you start the development board.
<div style="padding-left:200px">[[文件:Orange-pi-3lts-setupserialportok.png|600px]]</div>
For more information on using the Orange Pi 3 LTS, please see the <span style="color:#ff003a;">Orange Pi 3 LTS User Manual</span>. (Click to download)
