SHOWALL FUN PRANKS HIGH VOLTAGE LAZARUS-64 PHOTOGRAPHY SPY GADGETS VIDEO GAME
Figure 4 - Various capacitor values I tried to control the ultimate frame rate
Figure 4 - Various capacitor values I tried to control the ultimate frame rate

The small capacitor shown in the bottom left of Figure 4 is only 1 uF. This gave a frame rate of between 1 and 100 frames per second. The camera could only handle taking photos at a speed of about two per second, so for fast time lapse photography or with a very fast camera, this might be a decent value to use. With the flash off, the camera was actually much more capable of taking photos quickly, but at several per second, the memory card would be filled in a hurry. The large capacitor on the lower right of Figure 4 is 1000 uF, and I ended up using that one to set the rate of photo taking to about 1 per hour. At this slow rate, the 4017 taps can be changes from 0 and 5 to 0 and 1 to keep the focus and photo functions closer together.



Figure 5 - The complete system is being tested with the timer on a breadboard
Figure 5 - The complete system is being tested with the timer on a breadboard

Figure 5 shows the completed relay driver board jacked into the solderless breadboard where the timer and counter portion of the circuit are being tested. While you are prototyping this project, some interesting options might include: using a beeper on one of the free counter pins to alert you before or after a photo has been taken, or possibly controlling more relays or multiple cameras. There is certainly a lot of room for expansion with only two of the 10 counter outputs in use.

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