16mm
/
intval3
1
0
Fork 0
Code Issues 1 Pull Requests 9 Projects Releases Wiki Activity
Raspberry Pi-based intervalometer for Bolex 16mm camera https://intval3.sixteenmillimeter.com
477 Commits 11 Branches 3 Tags 20 MiB
JavaScript 82.3%
OpenSCAD 6.7%
CSS 5.1%
TypeScript 3.8%
Shell 0.9%
Other 1.2%
Go to file
mmcwilliams 6720fbcacb Add a new script to prep sdcards containing raspian-lite. This will add the flags and config to the /boot mount that allows the raspberry pi to be accessed via SSH on boot, and allows it to be used as an ethernet device over USB. 2019-03-26 14:43:20 -04:00
app Comment out all ble methods, to be replaced with new Bluetooth API calls 2019-03-17 11:56:03 -04:00
conf Move all config files into ./conf 2017-12-31 01:26:29 -05:00
experiments Moved curl script to experiments 2018-02-10 12:09:19 -05:00
hardware Export raspberry pi zero w bonnet as gerber files and make a .zip of them to upload to OSHPark. Boards will be released as gerber files and pdf for etching your own boards manually, using the toner transfer method: https://www.dr-lex.be/hardware/tonertransfer.html 2019-03-07 21:55:43 -05:00
howto Add necessary step for wifi configuration 2018-10-07 17:05:51 -04:00
lib Gpio must be constructed with new 2019-02-23 20:52:47 -05:00
scripts Add a new script to prep sdcards containing raspian-lite. This will add the flags and config to the /boot mount that allows the raspberry pi to be accessed via SSH on boot, and allows it to be used as an ethernet device over USB. 2019-03-26 14:43:20 -04:00
test Create unit tests for QUnit 2018-02-10 16:34:56 -05:00
.gitignore Ignore .DS_Store 2018-02-12 13:59:32 -05:00
Readme.md Create both readme files, one at the project level and another just for the mobile app. More work needed on the project one. 2018-02-07 18:22:28 -05:00
dev.sh Run node index.js, not the deleted bluetooth service. 2017-11-22 09:31:03 -05:00
docs.sh Install jsdoc-to-markdown for documentation 2017-09-17 15:13:40 -04:00
index.js Reset state and then set newly reset state to web UI 2018-02-12 14:57:06 -05:00
nginx.conf Update nginx config to use static dir 2018-10-07 17:16:22 -04:00
package-lock.json Uninstall gpio and rpio for now. Just use onoff 2019-02-23 20:08:26 -05:00
package.json Uninstall gpio and rpio for now. Just use onoff 2019-02-23 20:08:26 -05:00
process.json BLE features are working, minus the wifi feature. Good work today. 2017-12-13 18:40:14 -05:00

Readme.md

INTVAL3

What is this?

INTVAL3 is an open source intervalometer for the Bolex 16mm camera. The goal of the project is to create a cheap-to-make intervalometer that can be used to automate time-lapse or animation on the Bolex using mobile, web or physical controls.

This is the third incarnation of the INTVAL project, this time utilizing the Raspberry Pi Zero W for Wifi and Bluetooth control. Earlier versions, the INTVAL and INTVAL2 were Arduino-based. The original INTVAL used a solenoid (!!!) to hammer a camera release cable, while the second attempt was a proving ground for the motor-and-key hardware used in this version.

The INTVAL2 project should be used if you prefer a simpler, physical interface approach.

Components

Firmware

The firmware of the INTVAL3 is a node.js application running on the Raspian OS intended for installation on the Raspberry Pi Zero W.

Mobile App

The INTVAL3 mobile app controls the intervalometer over Bluetooth. It can be used to configure the settings on the intervalometer such as exposure length, delay between frames and the direction of the film. The app can also be used to trigger individual frames, as well as start and stop sequences. As an experimental feature, film exposure settings can be determined with the camera on a mobile device.

Web App

As a function of the firmware, there is an embedded web application that is hosted on the INTVAL3. When connected to a wifi network (via the mobile app) users are able to control the intervalometer from a browser. Users are also able to trigger functions and change settings on the intervalometer firmware from the command line by using cURL or wget, so actions can be scripted and automated from an external machine.

Hardware

All of the non-electronic hardware is generated from OpenSCAD scripts and built into either STL files for 3D printing or DXF files for laser cutting or CNCing.

Electronics designs are available in the form of a Fritzing file, a wiring diagram and a mask image that can be used to fabricate a board from a blank PCB. One of the easiest ways to

PARTS

  1. Raspberry Pi Zero W - [Adafruit] [Sparkfun]
  2. L298N Breakout Board - ?
  3. 120RPM 12VDC Motor - ?
  4. Microswitch w/ Roller - [Adafruit]
  5. L7805 5V Regulator - [Adafruit] Sparkfun]
  6. (Optional) Proto Bonnet - [Adafruit]