Assembly and Operating Instructions for HiViz Kits
Project Box Enclosure for Multi-Trigger
Note: This unit is not available for sale. If you wish to buy a kit, see the larger Multi-Trigger Enclosure Kit.
Click on the thumbnails for high-resolution photos.
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Left panel |
Right panel |
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Front panel |
Top panel |
The Multi-Trigger breadboard is housed in a 4.875"x2.5"x1.5" project box. The features are described below.
Left panel
Input jack for photogate (PG): This is a 3.5mm (1/8") stereo phone jack. 3.5mm stereo phone plugs (male) are needed for connecting to the photogate cables of the Multi-Trigger.
Input jack for piezoelectric microphone (SND): This is a 3.5mm mono phone jack. A 3.5mm mono phone plug is needed together with a 3-foot length of 2-conductor cable in order to prepare a microphone cable for connection to the Multi-Trigger.
Right panel
Jack for an optional AC/DC adapter. The AC/DC jack will accept this adapter (standard 2.1mm). If an adapter isn't used, power is provided by a 9-V battery.
Front panel
RCA-syle jacks for immediate (IM) and delayed (DEL) outputs. One male RCA plug is needed for connecting to a 2-conductor cable used for the flash unit. The jacks labeled FLA are for connection to a flash unit. The jacks labeled CAM are for connection to a camera using a Camera Opto-Switch.
Top panel
The switch on the left is an SPST switch and is used to turn on the power to the circuit. Note that the LEDs are not ON-OFF indicators.
The switch in the middle is an SPDT switch and is used to switch between microphone and photogate inputs.
The switch on the right selects two possible TIMEOUTs of 0.1s or 1s. This is the time after a triggering event during which the circuit is disabled.
The LED on the left is the photogate indicator. It turns on when the photogate is unbroken.
The LED on the right is the trigger indicator. It flashes when the delayed output of the delay unit is triggered. The LED remains on for a length of time equal to the TIMEOUT setting.
The two pots on the left are to adjust the sensitivities of the sound trigger and the photogate. In most situations, the sound trigger knob will be turned all the way clockwise, and the photogate knob will be turned about halfway.
The two pots on the right are the FINE and COARSE delay selectors.
If you're making your own enclosure using this project box, templates and a parts list are given below.