Scheduled Camera Trigger

This program is built to schedule a camera to wake up and start/stop recording video at specific times. It was originally built to automatically start a camera for a rocket launch and is highly optimized for that use. It can trigger any camera with a standard remote trigger port as well as ZCams over their HTTP API.

It is optimized for use on a low power Raspberry Pi Zero W.

Usage

First, clone the repository and switch to that directory.

git clone git@github.com:nprail/scheduled-camera-trigger.git

cd scheduled-camera-trigger

Install the dependencies. Node.js is required for this.

npm install

Then copy the config file.

cp config.example.json config.json

And finally start up the server!

node trigger/index

Config Options

See config.example.json for an example config file.

Option	Description
`cameraType`	Type of camera being triggered. Can be either `generic` or `zcam`
`logFile`	File path to store logs at
`buttonGpioPort`	GPIO port on the Raspberry Pi that is connected to a button which when pressed will re-enable WiFi on the Pi (optional)
`generic.releaseGpioPort`	GPIO port on the Raspberry Pi that is connected to the camera's shutter release pin (required when the `cameraType` is `generic`)
`generic.focusGpioPort`	GPIO port on the Raspberry Pi that is connected to the camera focus pin (optional)
`wakeUpTimeout`	The amount of time before the recording is started to wake up the camera. Parsed by ms.
`startBefore`	The amount of time before ignition time to start the recording. Parsed by ms.
`endAfter`	The amount of time after ignition time to end the recording. Parsed by ms.
`attempts`	Array of launch attempts
`attempts.name`	Friendly name for the launch attempt
`attempts.time`	Exact T-0 of the launch attempt in UTC