Infra-red bird box

Infra-red bird box activity for Scouts digital day

Transcript

1. Infra-red bird box camera Raspberry Pi Foundation UK Charity 1129409
2. Raspberry Pi camera module • 5Mpx / 8Mpx • Full HD • Photo & video • Command line • Python module • Infra-red camera variant • 30fps @ 1080p 60fps @ 720p 90fps @ 480p
3. Night vision camera • 5Mpx • Light sensors (LDR) • Infra-red LEDs • Adjustable lens focus • Compatible with official camera module
4. Connect the camera
5. Enable camera software
6. Test the camera $ raspistill -k
7. Open Thonny Python IDE
8. Thonny Python IDE File editor – saved code Shell – testing code
9. Python picamera from picamera import PiCamera from time import sleep camera = PiCamera() camera.start_preview(alpha=200) sleep(10) camera.stop_preview()
10. Rotation from picamera import PiCamera from time import sleep camera = PiCamera() camera.rotation = 180 camera.start_preview(alpha=200) sleep(10) camera.stop_preview()
11. Still images from picamera import PiCamera from time import sleep camera = PiCamera() camera.start_preview(alpha=200) sleep(5) camera.capture('/home/pi/Desktop/image.jpg') camera.stop_preview()
12. Text annotation from picamera import PiCamera from time import sleep camera = PiCamera() camera.start_preview(alpha=200) camera.annotate_text = "Hello world" sleep(5) camera.capture('/home/pi/Desktop/image.jpg') camera.stop_preview()
13. Multiple capture from picamera import PiCamera from time import sleep camera = PiCamera() camera.start_preview(alpha=200) for i in range(5): sleep(5) camera.capture('/home/pi/Desktop/image{}.jpg'.format(i)) camera.stop_preview()
14. Video from picamera import PiCamera camera = PiCamera() camera.start_preview(alpha=200) camera.start_recording('/home/pi/video.h264') camera.wait_recording(10) camera.stop_recording() camera.stop_preview()
15. Video playback $ omxplayer video.h264
16. PIR Motion Sensor
17. Motion sensor from picamera import PiCamera from gpiozero import MotionSensor camera = PiCamera() pir = MotionSensor(4) pir.when_motion = camera.start_preview pir.when_no_motion = camera.stop_preview
18. Motion sensor photo trigger from picamera import PiCamera from gpiozero import MotionSensor from datetime import datetime def capture(): timestamp = datetime.now().isoformat() camera.capture('/home/pi/{}.jpg'.format(timestamp)) camera = PiCamera() pir = MotionSensor(4) pir.when_motion = capture
19. Motion sensor video trigger from picamera import PiCamera from gpiozero import MotionSensor from datetime import datetime camera = PiCamera() pir = MotionSensor(4) while True: if pir.motion_detected: camera.start_preview(alpha=200) timestamp = datetime.now().isoformat() camera.start_recording('/home/pi/{}.h264'.format(timestamp)) camera.wait_recording(10) camera.stop_recording() camera.stop_preview()
20. Circular stream video from picamera import PiCamera, PiCameraCircularIO from gpiozero import MotionSensor camera = PiCamera() pir = MotionSensor(4) stream = PiCameraCircularIO(camera, seconds=20) camera.start_recording(stream, format='h264') try: while True: camera.wait_recording(1) if pir.motion_detected: camera.wait_recording(10) stream.copy_to('motion.h264') finally: camera.stop_recording()
21. Infra-red bird box camera Raspberry Pi Foundation UK Charity 1129409