SKU_RM0004

The project supports running on RaspberryPi, Ubuntu, HomeAssistant,You can also use Python to call compiled DLLs on these platforms.

RaspberryPi

Turn on i2c and set the speed

Add the following to the /boot/config.txt file

dtparam=i2c_arm=on,i2c_arm_baudrate=400000

Turn on the button to control the shutdown function

Add the following to the /boot/config.txt file

dtoverlay=gpio-shutdown,gpio_pin=4,active_low=1,gpio_pull=up

reboot your system

sudo reboot

Wait for the system to restart

Clone SKU_RM0004 library

git clone https://github.com/UCTRONICS/SKU_RM0004.git

Compile

cd SKU_RM0004
make

Run

./display

Add automatic start script

Open the rc.local file

sudo nano /etc/rc.local

Add command to the rc.local file

cd /home/pi/SKU_RM0004
make clean 
make 
./display &

reboot your system

Install Instructions for SKU_RM0004 on Ubuntu Server 22.04

The following steps would be the adapted instructions for your environment (Ubuntu Server 22.04 with user serveradmin, adjust for your own environment):

Enable i2c and set the baud rate by editing the /boot/firmware/config.txt file. You can do this using a text editor such as nano. You will need to use sudo to edit this file because it requires root permissions:
```
sudo nano /boot/firmware/config.txt
```
Then, add the following lines to the file:
```
dtparam=i2c_arm=on
dtparam=i2c_arm_baudrate=400000
dtoverlay=gpio-shutdown
dtoverlay=gpio_pin=4
dtoverlay=active_low=1
dtoverlay=gpio_pull=up
```
Save the file and exit the editor.

Install the necessary i2c packages with the following command:

sudo apt install -y python3-pip python3-dev python3-pil python3-setuptools python3-rpi.gpio i2c-tools

Add your user to the i2c group with the following command:
```
sudo usermod -aG i2c serveradmin
```

Clone the SKU_RM0004 library and compile the display driver:

git clone https://github.com/UCTRONICS/SKU_RM0004.git
cd SKU_RM0004
make

To start the display driver automatically at boot, you can either use the systemd service or the /etc/rc.local file.
- To use the systemd service, you will need to create a systemd service. Open a new service file in a text editor:
```
sudo nano /etc/systemd/system/sku_rm0004.service
```
  Then, add the following lines to the file:
```
[Unit]
Description=Start SKU_RM0004 display
After=network.target

[Service]
ExecStartPre=/usr/bin/make -C /home/serveradmin/SKU_RM0004 clean
ExecStartPre=/usr/bin/make -C /home/serveradmin/SKU_RM0004
ExecStart=/home/serveradmin/SKU_RM0004/display
WorkingDirectory=/home/serveradmin/SKU_RM0004
User=serveradmin
Group=serveradmin
Restart=always

[Install]
WantedBy=multi-user.target
```
  Save and close the file.
  
  Then, enable the service with the following command:
```
sudo systemctl enable sku_rm0004
sudo systemctl start sku_rm0004
```
- To use the rc.local file method, you will need to add commands to the /etc/rc.local file. Note that this file may not exist or be executable by default on Ubuntu 22.04, so you may need to create it and make it executable:
```
sudo touch /etc/rc.local
sudo chmod +x /etc/rc.local
sudo nano /etc/rc.local
```
  Then, add the following commands to the file:
```
#!/bin/bash
cd /home/serveradmin/SKU_RM0004
make clean 
make 
./display &
```
  Save the file and exit the editor.
  
  Remember to reboot your system for changes to take effect:
```
sudo reboot
```

veteranbv/SKU_RM0004