rpi_camera

1. Purpose

Python3 scripts running on Raspberry Pi to be a video streaming server, 
automatically recording or controlled with button and led.

2. Prepare the camera

Please reference 
https://randomnerdtutorials.com/video-streaming-with-raspberry-pi-camera/

3. Start video streaming in 2592x1944 resolution

git clone https://github.com/yourskc/rpi_camera.git
cd rpi_camera
python3 rpi_camera.py

4. Connect to camera

in web browser, 
http://{IP}:8080 
for mainmoil, set the camera's URL : 
http://{IP}:8000/stream.mjpg

5. for Raspbian Lite

login as default user/pass: pi/raspberry
run raspi-config to enable camera
sudo apt install git
sudo apt install python3-picamera
git clone https://github.com/yourskc/rpi_camera
cd rpi_camera
ifconfig ( check IP address)
raspistill -v
python3 rpi_camera

6. run camera server on start up

sudo nano /etc/rc.local

add the followings,
( sleep 10
python3 /home/pi/rpi_camera/rpi_camera.py ) &

7. connect two Raspberry Pi through Ethernet

for the first one,
ifconfig eth0 192.168.1.1 netmask 255.255.255.0
for the second one,
ifconfig eth0 192.168.1.2 netmask 255.255.255.0

connect the above two Raspberry Pi with one Ethernet cable

8. automatically start recording

replace rpi_camera.py with rpi_camera_auto.py, that is, 
cp rpi_camera_auto.py rpi_camera.py

When you want to change it next time,
ps -ef | grep rpi ( check the {process ID} )
sudo kill {process ID}

9. control with button and led

Each time the button is pressed, a new directory will be created
under record/ directory and all new images will be saved in the new
folder. 

replace rpi_camera.py with rpi_camera_btn.py, that is, 
cp rpi_camera_btn.py rpi_camera.py	

sudo apt-get install rpi.gpio

connect 2 pins of led to Ground and PIN#11
connect 3 pins of button to  3.3V, Ground and PIN#12