Timelapse video for Raspberry Pi

use raspberry pi installer. Lite 32 version. Setting wifi setting before writing helps
sudo apt install python3-pip
pip3 install -r requirements.txt
sudo apt install libopenjp2-7 # PIL error
sudo raspi-config # enable camera
python3 -u timelapse.py
Install quickly:

curl -L https://github.com/oudeismetis/pi_timelapse/raw/main/install.sh | sh

ffmpeg -framerate 24 -pattern_type glob -i "dumps/06_28/*.jpeg" -s:v 1440x1080 -c:v libx264 -crf 17 -pix_fmt yuv420p videos/06_28_timelapse.mp4

Concat all the days

https://stackoverflow.com/questions/7333232/how-to-concatenate-two-mp4-files-using-ffmpeg

my_list.txt looks something like:

file '/Users/oudeis/dev/pi_timelapse/videos/06_28_timelapse.mp4'
file '/Users/oudeis/dev/pi_timelapse/videos/07_10_timelapse.mp4'

then you can run:

ffmpeg -f concat -safe 0 -i my_list.txt -c copy videos/exp_merge.mp4

Power Saver: (~180mA)

TODO

I wonder if you can use another Pi and a short ethernet cable to SSH directly onto a Pi? If so, that would make disabling of all the below settings much more practical as you'd still have a way in to disable them when needed.

Alternatively, build some sort of "solar button". When we detect that it's very dark outside via inspecting camera images, trigger a shutdown of the OS. Have a tiny light sensor pointed at the sky. When it detects enough light, trigger the pi back on. This could be a physical button trigger, but I believe you can also power on the pi via wire

Disable USB (100mA)

resets on reboot. Disable and enable would be:

echo '1-1' |sudo tee /sys/bus/usb/drivers/usb/unbind
echo '1-1' |sudo tee /sys/bus/usb/drivers/usb/bind

Disable HDMI (30mA)

resets on reboot. Disable and enable would be:

sudo /opt/vc/bin/tvservice -o
sudo /opt/vc/bin/tvservice -p

Disable Wifi/Bluetooth (40mA)

Change is permenant unless lines are removed Edit /boot/config.txt

[all]
dtoverlay=disable-wifi
dtoverlay=disable-bt

Disable LEDs (10mA)

Most of these changes work for the Pi3, though some are Pi4 specific. Pi2 has very different settings Change is permenant unless lines are removed Edit /boot/config.txt

[pi4]
# Disable the PWR LED
dtparam=pwr_led_trigger=none
dtparam=pwr_led_activelow=off
# Disable the Activity LED
dtparam=act_led_trigger=none
dtparam=act_led_activelow=off
# Disable ethernet port LEDs
dtparam=eth_led0=4
dtparam=eth_led1=4
disable_camera_led=1

Resources: