At last a project with servo's. My digital Canon PowerShot A700 camara is controlled by 2 servo's. One for the power button and one for the trigger button. The rig was built out of a smal tray from an old wooden cabinet. On power-up, the power-switch will be activated and the camera is switched on. I used a potentiometer to set the delay time between to pictures. When writing the program, I also wrote a procedure to control the servo's with the potentiometer. This procedure was used to callibrate the servo's. The parameters are readable as output via the computer. I could fine tune the stance of the servo by turning the potentiometer knob, finding the best position (and the best value) for the servo's to activate the buttons.
I used the power button for longer delay times. If the delay is more than 1 minute, the camera will switch-off and need to power-up again before taking the next photo.
Standard servo's were used at first. These servo's were consuming too much power from the Arduino board. The power IC was ready getting real hot. The smel warned me just in time. I replace the standard servo's for micro servo's.
The picture left shows the backside of the rig and camera. The vertical board is my experimental board with the electronics.
Nothing special, just a couple of pull-down resitor's and connector's for the servo's. Till now I made 3 time lapse clips with MovieMaker.
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