led_screen_display_control.md

LED screen display control instructions

• The configuration file is placed in the /usr/share/openvfd directory of the Armbian/OpenWrt system, and the command file for Armbian systems is located at /usr/sbin/armbian-led, and the command file for OpenWrt systems is located at /usr/sbin/openwrt-led. If it is not in the current firmware, it can be uploaded manually, And give the file execute permission: chmod +x /usr/share/openvfd/vfdservice /usr/sbin/*-led

• Upgrade your system's kernel to the latest version. Armbian systems are updated using the armbian-update command. For OpenWrt system, use System menu → Amlogic Service → Online Download Update to upgrade the function.

• At present, there are several boxes such as x96max.conf, x96maxplus.conf, h96max-x3.conf, hk1-x3.conf, hk1box.conf, tx3.conf, x96air.conf etc. that have passed the test. The configuration of other devices can be viewed: arthur-liberman/vfd-configurations and LibreELEC/linux_openvfd to modify, It is necessary to adjust the corresponding content in the configuration files of these two websites, and use it after subtracting 1 from the value of the second field, such as:

vfd_gpio_clk='0,69,0'
vfd_gpio_dat='0,70,0'

change into:

vfd_gpio_clk='0,68,0'
vfd_gpio_dat='0,69,0'

• Take the configuration of x96maxplus as an example: if the displayed time and text order is not correct, you can adjust the numerical order of vfd_chars='4,0,1,2,3' to vfd_chars='1,2,3,4,0', etc. for testing. If the time is displayed in reverse, you can adjust the first value 0x02 in vfd_display_type='0x02,0x00,0x01,0x00' to 0x01, etc. for testing. The displayed content can adjust the value in functions='usb apps setup sd hdmi cvbs' according to the specific situation supported by your own device

• Name the configuration file diy.conf and upload it to the /usr/share/openvfd/conf directory, enter the command armbian-led 99 to test.

• You can disable the LED display and clear system processes with the command armbian-led 0, before each test a new configuration, please execute this disable command first, and then execute armbian-led 99 to make changes After the configuration test.

• After the screen is displayed normally, you can add it to the self-starting task at boot, Please modify the 15 in the following command according to the serial number corresponding to the box in the armbian-led option:

# Execute the following command in the terminal to add the Armbian system
sed -i '/armbian-led/d' /etc/rc.local
sed -i '/^exit 0/i\[[ -f "/usr/sbin/armbian-led" ]] && armbian-led 15' /etc/rc.local

# Execute the following command in the terminal to add the OpenWrt system
sed -i '/openwrt-led/d' /etc/rc.local
sed -i '/^exit 0/i\[[ -f "/usr/sbin/openwrt-led" ]] && openwrt-led 15' /etc/rc.local

• You are welcome to share the conf file(xxx.conf) of your own devices after testing, so that more people can benefit.

Box	ID	Armbian Command	OpenWrt Command	Function
x96max	11	armbian-led 11	openwrt-led 11	Enable LED
x96maxplus	12	armbian-led 12	openwrt-led 12	Enable LED
x96air	13	armbian-led 13	openwrt-led 13	Enable LED
h96max-x3	14	armbian-led 14	openwrt-led 14	Enable LED
hk1-x3	15	armbian-led 15	openwrt-led 15	Enable LED
hk1box	16	armbian-led 16	openwrt-led 16	Enable LED
tx3	17	armbian-led 17	openwrt-led 17	Enable LED
tx3-mini	18	armbian-led 18	openwrt-led 18	Enable LED
t95	19	armbian-led 19	openwrt-led 19	Enable LED
t95z-plus	20	armbian-led 20	openwrt-led 20	Enable LED
tx9-pro	21	armbian-led 21	openwrt-led 21	Enable LED
x92	22	armbian-led 22	openwrt-led 22	Enable LED
diy	99	armbian-led 99	openwrt-led 99	Enable LED
-	0	armbian-led 0	openwrt-led 0	Disable LED
-	-u	armbian-led -u	openwrt-led -u	Update Conf

LED 屏显示控制说明

• 配置文件放在 Armbian/OpenWrt 系统的 /usr/share/openvfd 目录下，Armbian 系统的命令文件位于 /usr/sbin/armbian-led，OpenWrt 系统的命令文件位于 /usr/sbin/openwrt-led。如果当前固件中没有的可以手动上传，并赋予文件执行权限：chmod +x /usr/share/openvfd/vfdservice /usr/sbin/*-led

• 将系统的内核升级到最新版本。Armbian 系统使用 armbian-update 命令升级。OpenWrt 系统使用 系统菜单 → 晶晨宝盒 → 在线下载更新 功能升级。

• 目前有 x96max.conf、x96maxplus.conf、h96max-x3.conf、hk1-x3.conf、hk1box.conf、tx3.conf、x96air.conf 等设备经过测试，其他设备的配置可以查看：arthur-liberman/vfd-configurations 和 LibreELEC/linux_openvfd 进行修改，需要把这两个网站中配置文件里对应内容中进行调整，把第二个字段的值减 1 后使用，如：

vfd_gpio_clk='0,69,0'
vfd_gpio_dat='0,70,0'

修改为：

vfd_gpio_clk='0,68,0'
vfd_gpio_dat='0,69,0'

• 以 x96maxplus 的配置为例：如果显示的时间文字顺序不正确，可以调整 vfd_chars='4,0,1,2,3' 的数字顺序为 vfd_chars='1,2,3,4,0' 等进行测试。如果时间是翻转显示，可以调整 vfd_display_type='0x02,0x00,0x01,0x00' 中的 第一个值 0x02 为 0x01 等进行测试。显示的内容可根据自己的设备支持的具体情况调整 functions='usb apps setup sd hdmi cvbs' 中的值。

• 将配置文件命名为 diy.conf 并上传至 /usr/share/openvfd/conf 目录下，输入命令 armbian-led 99 进行测试。

• 通过命令 armbian-led 0 可以禁用 LED 显示并清除系统进程，在每次测试新的配置前，请先执行此禁用命令，再执行 armbian-led 99 进行更改后的配置测试。

• 屏幕显示正常后，可以添加至开机自启动任务，下面命令中的 15 请根据 armbian-led 选项中盒子对应的序号进行修改：

# Armbian 系统在终端执行以下命令添加
sed -i '/armbian-led/d' /etc/rc.local
sed -i '/^exit 0/i\[[ -f "/usr/sbin/armbian-led" ]] && armbian-led 15' /etc/rc.local

# OpenWrt 系统在终端执行以下命令添加
sed -i '/openwrt-led/d' /etc/rc.local
sed -i '/^exit 0/i\[[ -f "/usr/sbin/openwrt-led" ]] && openwrt-led 15' /etc/rc.local

• 欢迎大家测试后分享自己设备的配置文件（ diy.conf ），让更多人受益。

盒子	编号	Armbian 使用命令	OpenWrt 使用命令	功能
x96max	11	armbian-led 11	openwrt-led 11	启用 LED
x96maxplus	12	armbian-led 12	openwrt-led 12	启用 LED
x96air	13	armbian-led 13	openwrt-led 13	启用 LED
h96max-x3	14	armbian-led 14	openwrt-led 14	启用 LED
hk1-x3	15	armbian-led 15	openwrt-led 15	启用 LED
hk1box	16	armbian-led 16	openwrt-led 16	启用 LED
tx3	17	armbian-led 17	openwrt-led 17	启用 LED
tx3-mini	18	armbian-led 18	openwrt-led 18	启用 LED
t95	19	armbian-led 19	openwrt-led 19	启用 LED
t95z-plus	20	armbian-led 20	openwrt-led 20	启用 LED
tx9-pro	21	armbian-led 21	openwrt-led 21	启用 LED
x92	22	armbian-led 22	openwrt-led 22	启用 LED
diy	99	armbian-led 99	openwrt-led 99	启用 LED
-	0	armbian-led 0	openwrt-led 0	禁用 LED
-	-u	armbian-led -u	openwrt-led -u	更新配置