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CameraShutterTimer

This project consists of an hardware intervalometer for Nikon cameras. It aims to cover to main shortcomings of these cameras:

• Provides remote control functionality, usually found as an extra accessory available in the market at a cost;
• Provides intervalometer capability, usually unavailable in the lower end DSLRs such as the D3x00, and with limited functionality in the mid-low range D5x00. Normally it is limited to 999 frames in these cameras;
• With the camera in bulb mode enables long yet automatically triggered exposures (up to 1 hour);

It interfaces the camera the same way as an ML-L3 infrared remote control
but instead of having the single functionality of triggering the camera
upon the press of the button, it also provides timed shooting for timelapse
photography.

This source code is accompanied with an application schematic diagram to
help in the construction of a complete unit using the PIC12F683 microcontroller
and this firmware.

The diagram below shows the pin mappings of the microntroller to this concrete
application:

                   +---------------+
 +5V         -   --|(VDD)|   |(VSS)|--   - GND
                   |     \---/     |
 ENGAGED_LED <   --|(GP5)     (AN0)|--   < KNOB_POS
                   |               |
 N/A         -   --|(GP4)     (GP1)|--   > KNOB_BIAS
                   |               |
 START_BTN   >   --|(GP3)    (CCP1)|--   > IR_DIODE
                   +---------------+

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Author: Luis Teixeira (teixeluis@gmail.com)

Copyright 2014 Luis Teixeira

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, softwar
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
see the License for the specific language governing permissions and
limitations under the License.

Project Members:

• Luis Teixeira (admin)