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Single Leaf Shutter Controlled by Arduino

by 3 Comments

Here is a great little project by Kevin Kadooka if you are starting out on photography and have good Arduino understanding, or if you are starting out on Arduino and have a solid understanding of photography 🙂

Single Leaf Shutter Controlled by Arduino

This solenoid based single leaf shutter is controlled by Arduino and can expose a sensor or film for anywhere between 1/125 to infinity at the press of a button. The exposure duration is controlled via a small potentiometer.

While this prototype which is housed in an Arduino Uno board is quite large, it can be shrunken down quite a bit using a Trinket or an Arduino Micro, which would make it perfect for pinhole cameras.

P.S. Kevin is the brains behind the wonderful DUO TLR which we featured way back.

[Single-leaf Shutter (SLS) Prototype | Kevin Kadooka via Hackaday]

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  • V

    Looks like it needs 3 IO pins.
    1. trigger.
    2. variable resistor
    3. Solenoid

    This can be done in an 8 pin IC Attiny85. Same arduino program could be run on Attiny85 and you can use the UNO to program Attiny85.

    -V

    • trialex

      Guess what IC is the “brains” of the Trinket mentioned in the article…

    • cabdriverjim

      I prototype lots of circuits on the UNO but I usually build the final circuit using an attiny on a perfboard with a CR2032 coin cell to power it. One can buy 100 attiny85 chips for the cost of 10 trinkets from any major distributor. I’d rather have multiple attinys on a board than a single atmega in many cases. You can do neat things like dedicate an attiny85 to output wave audio which is not possible on the atmega. Or have a dedicated attiny85 performing complex math on ADC inputs and feeding the calculated output to another attiny85. Poor man’s multicore.

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