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Matt 2016-01-12 11:12:43 -05:00
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Readme.md
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@ -6,9 +6,8 @@
2. Attachment
3. Usage
4. Power
5. Assembly
6. Maintainance
5. Maintainance
6. Assembly
----
### 1) Overview
@ -37,15 +36,17 @@ The INTVAL 2.0 has two physical interfaces: the buttons on the case and the shut
release cable. The shutter release cable plugs into the underside of the case, next
to the DC adapter, and triggers the camera. A single, short press will trigger a ``single
frame``. Holding down the shutter release for more than 1 second will start a ``continuous sequence``
of frames. Hitting the shutter release during a running sequence will stop the camera.
of frames. Hitting the shutter release during a running sequence will stop the intervalometer.
The buttons on the case control three variables: direction, speed and delay. The camera
direction can be set to ``forward`` (default) with a quick press, and set to ``backwards`` by holding the
button for more than 1 second. Similarly, the speed can be set to ``1 second rotation`` (default) with a
quick press and set to ``2 second rotation`` by holding the button for more than 1 second. Delay refers
to the time the intervalometer pauses between frames and only matters when running a sequence. The delay is
set to ``42 ms`` by default and will be set to however long you hold it down for; holding the button for``10 seconds`` will set the delay between each frame to ``10 seconds``. Pressing the button quickly will reset
the timer to the default ``42 ms``.
The buttons on the case control three variables: direction, speed and delay. The direction of the
camera can be set to ``forwards`` (default) with a quick press, and set to ``backwards`` by holding the
button for more than 1 second.
Similarly, the speed can be set to ``1 second rotation`` (default) with a
quick press and set to ``2 second rotation`` by holding the button for more than 1 second. Remember,
during the 1 or 2 seconds that the shutter is rotating, exposure only occurs for a fraction of that time. How large a fraction depends on the setting of the Rexofader.
Delay refers to the time the intervalometer pauses between frames and only matters when running a sequence. The delay is set to ``42 ms`` by default and will be set to however long you hold it down for; holding the button for``10 seconds`` will set the delay between each frame to ``10 seconds``. Pressing the button quickly will reset the timer to the default ``42 ms``.
----
### 4) Power
@ -53,4 +54,23 @@ the timer to the default ``42 ms``.
Power the INTVAL 2.0 with 12VDC to the 2.1mm DC power jack located on the bottom of the case.
The maximum draw of the motor is under 1 Amp, so that much current should be ample to run the
intervalometer. Portable batteries, such as those used as supplimental cellphone power supplies,
can be used to as mobile power sources, they just must be able to provide 12V and not the typical (ex. http://www.anker.com/product/79AN7906-BA).
can be used to as mobile power sources, but they must be able to provide 12V and not the typical 5V that many of these batteries provide. One example: [Anker 2nd Gen Astro Pro2 20000mAh 4-Port Aluminum Portable External Battery Charger with 9V/12V Multi-Voltage Port](http://www.amazon.com/gp/product/B005NGLTZQ/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B005NGLTZQ&linkCode=as2&tag=sixteentools-20&linkId=HXO6TQG5JADIRZCZ))
----
### 6) Assembly
All parts of the INTVAL 2.0 are reproducible via 3D printing, laser cutting or purchasable for a total build cost of ~$50. The files in this repository consist of .SCAD, .STL, .DXF and .INO files. The .SCAD files contain all the elements needed to generate the physical body of the intervalometer with .DXF files for
laser cutting and .STL files for 3D printing. The .INO file contains the source code for the Arduino sketch
that powers the INTVAL 2.0.
All of the purchasable parts for this build:
1) [Arduino Trinket Pro 5V](http://www.amazon.com/gp/product/B0131VM9I0/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B0131VM9I0&linkCode=as2&tag=sixteentools-20&linkId=PK57RTRI2YRJVT2E)
2) [Nextrox Mini 12V DC 60 RPM High Torque Gear Box Electric Motor](http://www.amazon.com/gp/product/B00BX54O8A/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B00BX54O8A&linkCode=as2&tag=sixteentools-20&linkId=DFU3L54JZ3KQJMPU)
3) [L298N Motor Drive Controller Board Module Dual H Bridge DC Stepper For Arduino](http://www.amazon.com/gp/product/B014KMHSW6/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B014KMHSW6&linkCode=as2&tag=sixteentools-20&linkId=QZUX2HKYZAL23WGD)
4) [(5 Pcs) DC 3 Terminals PCB Mount 2.1x5.5mm Jacks Connectors Socket](http://www.amazon.com/gp/product/B00CQMGWIO/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B00CQMGWIO&linkCode=as2&tag=sixteentools-20&linkId=KMF43HLB5IS2CIFO) - need 1
5) [(10 Pcs) Plastic PCB Mount 5-Pin Stereo 3.5mm Socket Audio Connector]() - need 1
6) [3.5mm Stereo Audio Cable](http://www.amazon.com/gp/product/B004G3UK5C/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B004G3UK5C&linkCode=as2&tag=sixteentools-20&linkId=RVH32COHMFACT46V)
7) [(10 Pcs) Mini Push Button Momentary OFF-ON Switch 7mm Black](http://www.amazon.com/gp/product/B00RMGSCPA/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B00RMGSCPA&linkCode=as2&tag=sixteentools-20&linkId=66EL3G5J4ZXONMNK) - need 4
Additionally you'll need wire and solder of your choosing.