Every Photo Booth needs a release button. It may be built in, connected via cable or connected through a radio transmitter. All these methods have their advantages and disadvantages.
This solution is a good compromize, packed into a nice shape. The buzzer is designed to withstand real world operation.
Bluetooth LE Buzzer
The most recent model uses a Bluetooth LE module that may be configured either as keyboard or mouse. It is powered by a LiPo battery that is charged through USB without opening the housing. Buzzer functionality can be configured through USB with a simple terminal application. The buzzer emulates either any possible mouse button press or any keyboard key (including alternate functions like Ctrl, Alt, Shift, …) or multimedia keyboard function keys. This way the buzzer may even be used to trigger the camera on a mobile phone or tablet.
To allow for the slim housing, the tripod screw has been replaced by 4 screw holes for a VESA 100 mount. The large bottom surface allows glueing the buzzer to a flat and smooth surface easily. The USB connector faces to the side to be accessible while the buzzer is mounted. The housing is also availble with a flange to be mounted in a board or case.
This buzzer is based on an Arduino plattform. It uses the open-source libraries bluefruit, InternalFileSystem and Adafruit_LittleFS.
Yongnuo RF-603 Buzzer
The device uses a standard industrial buzzer switch that connects to a Yongnuo RF-603 transmitter. It is packed into an attractive casing for a more appealing look. It contains two AAA size batteries to power the transmitter.
The batteries are positioned under the mushroom pushbutton. They are accessible after removing the pushbutton assembly.
As radio transmitter module I used a Yongnuo RF-603 transceiver. This way the device is compatible to lots of other photographic solutions.
You may use a regular Yongnuo RF-603 transceiver at the other end to directly control a camera or the Photobooth Controller. To connect the buzzer to a PC, I recommend the Bluetooth LE buzzer.
USB HID Buzzer
There is a third member of the buzzer family. It is connected through an USB cable. No battery, no charging, just connect and forget. It may be used in environements where wireless isn’t reliable or simply not allowed. It may be used with any device accepting a USB HID keyboard or mouse.
This buzzer follows the same design as the Bluetooth LE Buzzer. It may be configured as USB keyboard, media keyboard or mouse. It can be programmed to send a keystroke or mouseclick along with modifying keys (Ctrl, Shift, Alt) or a media key. The buzzer is configured through USB.
This buzzer is based on an Arduino plattform. It uses the open-source libraries HID-Project and EEPROM.
If you are interested in the solution, drop me a message via the contact form.