Vermes
Advanced Member level 4
It is a fully programmable home made controller for long-term photography.
Parameters:
- exposure time
- exposure mode
- intervals between images
- interval between the autofocus signal and the photo signal
- you can enable or disable the save control
- you can set the camera off and time of waiting for turning on the electronics
- additionally, you can activate or deactivate taking pictures when it is dark (the system has an input of light sensor)
- you can activate an alarm (relay) when the picture is not taken or when the supply voltage drops below a certain value
Turning on the camera supply (relay), then the system waits for the activation of the electronics. After that, the system sends a pulse of focusing and a pulse of taking a picture to the camera.
This happens every certain time.
Next, the systems monitors of the picture was saved and if it was, the system is now turned off. In the case when the picture was not taken, the corresponding relay is activated.
The cycle is repeated a specified number of times (also adjustable in the menu).
The system monitors the supply and if it drops below a set value, the relay is activated.
Dialer GSM was plugged to the relays in the model device.
One of the processor pins in the control system sends clocking signal, that zeros the timer. The lack of the signal (impulses) results in resetting the system after timing the set time. It prevents Atmega from breaking.
All the parameters are stored in Atmega internal memory, so after rebooting, the system operates on. Only the time of taking the picture will switch to another, because this value will be updated to the set in the program.
PCB made by thermal transfer method.
PCB painted with EnSolder lacquer.
General view of the controller.
View of the LCD.
Testing.
The way of mounting the sensor of taking picture.
Link to original thread (useful attachment) – Programowalny sterownik do fotografii długoterminowej