# 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](https://www.raspberrypi.org/products/raspberry-pi-zero-w/) for Wifi and Bluetooth control. Earlier versions, the [INTVAL](https://github.com/sixteenmillimeter/INTVAL) and [INTVAL2](https://github.com/sixteenmillimeter/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](https://github.com/sixteenmillimeter/intval2) project should be used if you prefer a simpler, physical interface approach. ### Components * Firmware for the Raspberry Pi Zero W running on [Node.js](https://nodejs.org) * Mobile/Web/API for controlling device, using [Cordova](https://cordova.apache.org/) + [Bleno](https://github.com/sandeepmistry/bleno), and [Restify](http://restify.com/) * Hardware files, parts models for 3D printing, laser cutting and CNC * PCB design for a Raspberry Pi Zero W Bonnet * [Parts list](#parts-list) ## PARTS 1. Raspberry Pi Zero W - [[Amazon](http://amzn.to/2BWkKAy)] [[Adafruit](https://www.adafruit.com/product/3400)] [[Sparkfun](https://www.sparkfun.com/products/14277)] 2. L298N Breakout Board - [[Amazon](http://amzn.to/2DwBrmz)] 3. 120RPM 12VDC Motor - [[Amazon](http://amzn.to/2CbRw4R)] 4. Microswitch w/ Roller - [[Amazon](http://amzn.to/2CdG4FW)] [[Adafruit](https://www.adafruit.com/product/819)] 5. L7805 5V Regulator - [[Amazon](http://amzn.to/2CeFNlZ)] [[Adafruit](https://www.adafruit.com/product/2164)] [Sparkfun](https://www.sparkfun.com/products/107)] 6. (Optional) Proto Bonnet - [[Amazon](http://amzn.to/2ChnSLm)] [Adafruit](https://www.adafruit.com/product/3203)