I wanted to do some time lapse photography where the camera would take 1 capture every 20 minutes or so of a race car chassis fabrication project. After looking around on the web, I decided the GoPro Hero2 would work. The GoPro has a built-in time lapse feature but it can’t handle long intervals between pics.
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I learned that the camera has a one button mode that allows it to snap off a capture as soon as you turn it on. My project will take place over a period of weeks, so running it all off the internal battery of the GoPro was not an option.
The GoPro has a USB port on the side for charging. I got a dual USB wall wart to power both the Arduino and the GoPro and will leave them plugged in, so I don’t need to worry about battery capacity. The Arduino likely would run a long time on a battery pack but I have found that the GoPro with the EyeFi SD card I will use seems to go through a fully charged battery pretty quickly. If I didn’t mind downloading the pics manually before the memory card got full, I could use a standard SD card instead of the EyeFi card and probably run the whole thing on a battery. A 32 GB SD card would hold a fair amount of 11 MP shots.
I also didn’t want to have to remove the SD card from the GoPro when it got full, so I got an Eye-Fi SD card that automatically transfers the images from the GoPro to a nearby computer that is on a wireless network.
I realized that if I could turn the camera on remotely, it would take one picture, then I could turn it off until the next time I needed a picture. With a 20 minute interval between pictures, the Arduino would be running the whole time, but the GoPro would be totally off except for when it was...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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