https://github.com/fdelporte/picam-controller
Java service to control the Raspberry Pi camera
https://github.com/fdelporte/picam-controller
Last synced: 3 months ago
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Java service to control the Raspberry Pi camera
- Host: GitHub
- URL: https://github.com/fdelporte/picam-controller
- Owner: FDelporte
- Created: 2024-05-16T15:21:26.000Z (about 1 year ago)
- Default Branch: main
- Last Pushed: 2025-01-07T14:53:52.000Z (4 months ago)
- Last Synced: 2025-01-13T13:31:02.637Z (4 months ago)
- Language: Java
- Size: 25.4 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Raspberry Pi Camera Controller
Small Java application to control the camera running an a Raspberry Pi as an HDMI camera by executing the
`libcamera-hello`
application [included in Raspberry Pi OS](https://www.raspberrypi.com/documentation/computers/camera_software.html).
## REST API Controller
The camera settings can be adapted through an API.
```text
http//localhost:8080/api/?viewWidth=1920&viewHeight=1080&zoomOffsetX=0.0&zoomOffsetY=0.0&zoomWidth=1.0&zoomHeight=1.0
```
* viewWidth: 1 - 1920
* viewHeight: 1 - 1080
* zoomOffsetX: Percentage of the available width and heights as a decimal between 0 and 1
* zoomOffsetY: Percentage of the available width and heights as a decimal between 0 and 1
* zoomWidth: Percentage of the available width and heights as a decimal between 0 and 1
* zoomHeight: Percentage of the available width and heights as a decimal between 0 and 1
## Run on Raspberry Pi Zero 1 W
### Configure WiFi (if needed)
NOTE: This type of board requires a 2.4 Ghz access point!
```bash
sudo raspi-config
```
### Install Java
```bash
wget https://cdn.azul.com/zulu-embedded/bin/zulu11.76.21-ca-jdk11.0.25-linux_aarch32hf.tar.gz
tar -xzvf zulu11.76.21-ca-jdk11.0.25-linux_aarch32hf.tar.gz
rm zulu11.76.21-ca-jdk11.0.25-linux_aarch32hf.tar.gz
zulu11.76.21-ca-jdk11.0.25-linux_aarch32hf/bin/java -version
```
Should output:
```bash
openjdk version "11.0.25" 2024-10-15 LTS
OpenJDK Runtime Environment Zulu11.76+21-CA (build 11.0.25+9-LTS)
OpenJDK Client VM Zulu11.76+21-CA (build 11.0.25+9-LTS, mixed mode)
```
### Startup Script
```bash
sudo nano /etc/systemd/system/camera.start.service
[Unit]
Description=Start the camera control app
[Service]
Type=simple
ExecStartPre=/bin/sleep 30
ExecStart=/home/pi/zulu11.76.21-ca-jdk11.0.25-linux_aarch32hf/bin/java -jar /home/pi/picam-controller/picam-controller.jar &
[Install]
WantedBy=multi-user.target
sudo chmod 644 /etc/systemd/system/camera.start.service
sudo systemctl enable camera.start.service
sudo systemctl start camera.start.service
sync
sudo reboot
```