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Quick start

Hardware

autofocus_hardaware_connection

Software

Focus control

For motorized-focus ov5647 sensor

Please run the command 'sudo nano /boot/config.txt' and add the content below under [all] in the config file to configure the camera and motor driver. 

dtoverlay=ov5647,vcm
Then reboot your Pi to take effect.

Use libcamera to preview the camera: 

libcamera-still -t 0 --tuning-file /usr/share/libcamera/raspberrypi/data/ov5647_af.json

For motorized-focus imx219 sensor

Please run the command 'sudo nano /boot/config.txt' and add the content below under [all] in the config file to configure the camera and motor driver. 

dtoverlay=imx219,vcm
Then reboot your Pi to take effect.

Use libcamera to preview the camera: 

libcamera-still -t 0 --tuning-file /usr/share/libcamera/raspberrypi/data/imx219_af.json

Python demo

Arducam has released three demos: Motorized_Focus_Camera_Preview.py, Autofocus.py, and FocuserExample.py

Preparation

You need to perform the following steps first:

Step 1. Install dependencies
sudo apt-get upgrade
sudo apt install -y python3-kms++ python3-libcamera python3-pip
sudo apt install -y python3-pyqt5 python3-prctl libatlas-base-dev ffmpeg
sudo pip3 install numpy --upgrade
sudo pip3 install picamera2 opencv-python
Step 2. Install the driver and libcamera

Find your corresponding camera in the following two links, and then execute the following command

Native camera

Pivariety Camera

Note

If you do not find your camera please contact us.(support@arducam.com)

Step 3. Download library
git clone https://github.com/ArduCAM/RaspberryPi.git
Step 4. Enable i2c
cd /home/pi/RaspberryPi/Motorized_Focus_Camera
sudo chmod +x enable_i2c_vc.sh
./enable_i2c_vc.sh

Press Y to reboot

Usage

Motorized_Focus_Camera_Preview.py
  • This demo supports focusing in preview mode, You can see the focus visually
  • Single focus by keyboard up and down
cd /home/pi/RaspberryPi/Motorized_Focus_Camera/python/
python3 Motorized_Focus_Camera_Preview.py
AutofocusTest.py
  • This demo supports auto focusing in preview mode, You can see the focus visually
  • Click the ‘F’ button to achieve autofocus, click the ‘Q’ button to exit and save the /picture
cd /home/pi/RaspberryPi/Motorized_Focus_Camera/python/
python3 AutofocusTest.py -i 10
FocuserExample.py
  • FocuserExample.py Example of manual focus
cd /home/pi/RaspberryPi/Motorized_Focus_Camera/python/
python FocuserExample.py -i 10

screenshot.png

C demo

cd cd /home/pi/RaspberryPi/Motorized_Focus_Camera/C/
make install
make 
./manualFocus