Intervalometer for Canon and Nikon cameras

Step 2 Gather materials

Below is the bill of materials for this project.  Note that the project uses some fine-pitch components.  With a little practice, they're easy enough to solder.  The project is built on a printed-circuit board that's part of the kit.  It would be easy to purchase thru-hole parts and build the intervalometer on a breadboard - in fact the first version was built on a breadboard, and then I got a bit carried away and built the PCB.

Parts list:

Qty	Part
1	Atmel ATTiny88
1	MAX5360 DAC
1	CrystalFontz LCD
3	Tact button
1	2 position tact
1	Polycase enclosure
1	TC1015-5.0V
1	Power switch
1	Mini plug
1	Mini socket
1	2' cable
1	PCB
1	Phototransisitor
2	2k resistor
1	10k resistor
3	500 ohm resistor
4	1k ohm resistor
2	1uF tant cap
1	470pF cap
2	100pF cap
1	Opto isolator
1	Header
2	CR2032 battery
1	Battery Holder
4	LED (pushbutton)
1	Red diode
1	2x3 header

Most of the parts are available from Digikey - except the case (Polycase.com) and the LCD (crystalfontz.com).  I've pulled all the parts together into a kit that's available for purchase at Otter Creek Design (www.ottercreekdesign.com) or Amazon.com (www.amazon.com/dp/B002POLY3Q).

Additionally, if you want to modify the program and download to the device, you'll need an Atmel ISP.  I use the AVR ISP from Atmel, although there's a lot of different choices out there.  The part number on Digikey is ATAVRISP2-ND.

To modify the program, you'll want to download WinAVR and AVR Studio - they're both available at no cost.  WinAVR is available from SourceForge, AVR Studio is available from Atmel.  Both programs are required as you'll need AVR Studio to program the unit, and WinAVR for the avr-gcc program - since the source is written in C.  Source is available in the download section of www.ottercreekdesign.com website.