https://www.jeffgeerling.com/blog/2017/raspberry-pi-zero-w-headless-time-lapse-camera
https://github.com/geerlingguy/pi-timelapse
==== Set up pre boot ====
Since the /boot partition is accessible by any computer with an SD card reader, wifi configuration is now much simpler.
A typical wpa_supplicant.conf file is:
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=«your_ISO-3166-1_two-letter_country_code»
network={
ssid=”«your_SSID»”
psk=”«your_PSK»”
key_mgmt=WPA-PSK
}
For headless setup, SSH can be enabled by placing a file named ‘ssh’, without any extension, onto the boot partition of the SD card. When the Pi boots, it looks for the ‘ssh’ file; if it is found, SSH is enabled and then the file is deleted. The content of the file doesn’t matter: it could contain either text or nothing at all.
==== first boot ====
sudo raspi-config
interface > Enable camera
7 Advanced Options > expand file system
8 update app
sudo apt-get install -y python-picamera python-yaml git
sudo apt-get update && sudo apt-get upgrade
git clone https://github.com/geerlingguy/pi-timelapse.git
==== config file ====
##################
Basic Settings
##################
Image resolution Set to empty object ({ }) to use default resolution.
resolution: { }
width: 480
height: 270
The number of images to capture.
total_images: 5000
The interval between captures (in seconds).
interval: 250
Whether to create an animated gif after capturing the time-lapse images.
create_gif: False
Whether to create an video after capturing the time-lapse images.
create_video: False
#####################
Advanced settings
#####################
ISO value. 0 = auto, 60-800 for manual ISO.
iso: 0
Shutter speed. 0 = auto, else value in microseconds (seconds * 1000000).
shutter_speed: 0
White balance. Set to empty object ({ }) to use auto white balance.
white_balance: { }
red_gain: 1.3
blue_gain: 1.75
Rotate the images taken by the camera. Possible value are 0, 90, 180 or 270
rotation: 0
