Use this device to trigger your Canon, Sony, or Nikon dSLR camera from a Raspberry Pi, or any other 3.3V or 5V input signals.

This compact module is designed to connect directly to the Raspberry Pi's GPIO port, and provides a 3.5mm output jack that connects to your dSLR camera using standard audio extension cables. It is tiny enough to sit within most Raspberry Pi cases, although a hole may need to be created to allow the trigger cable to exit.

The connected camera is isolated and protected from the Raspberry Pi. No signals or electricity are transferred between the input and output sides of the module.

This device is handy for creating computer-controlled timelapses, and works well with Octoprint's Octolapse plugin.

Note: Some cameras may require an adapter if they don't use standard audio type connectors.

Specifications:

• Input: 3.3VDC to 5.0VDC
• Output: Single channel, current limited NPN transistor via 3.5mm audio jack
• Input/Output Isolation: 5000V

Raspberry Pi Connection Instructions:

1. Locate the GPIO header pins 39 (Ground) and 40 (GPIO 21). They are the last two pins closest to the USB and Ethernet ports.
2. Identify the female +5V and GND pins on the trigger, and orient the trigger so that the GND pin lines up with GPIO pin 39 (Ground), and +5V pin lines up with GPIO pin 40 (GPIO 21). The trigger module should be components side down.
3. Push the trigger module onto the GPIO header pins
4. Connect a 3.5mm audio cable to the trigger module and interface it with your camera using appropriate cables/adapter.

Triggering the device from the Raspberry Pi:

This example Python script will trigger the device when connected to pins 39, 40 of the Raspberry Pi. Download or copy it into a text file named "trigger.py", and execute it using the command 'python ./trigger.py'