I marked the approximate center of the base and drilled a hole large enough to screw the setscrew for the servo armature in. I then hot glued the armature to the underside of the base making sure not to get glue in the hole i drilled. I used 3 light sensors and 1 tilt sensor. You can substitute LEDs orphoto-transistors for the CDS cells, and/or me
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rcury switches for theball bearing tilt sensor but your code will have to reflect the change(s). I soldered wires from a scrap ribbon cable to the leads of each light sensor and a 2 pin header on the opposite end to connect easily to the breadboard. Use electrical tape / heat shrink / liquid insulator on the bare parts of the wire so that they don`t short out. Once that`s done, hot glue the sensors at equal intervals around the circumference of the mirror. I placed the sensors so that the flat collecting side of the sensor was parallel with the plane of the mirror and angled out from the center just slightly. The tilt sensor that I found was a plastic box with 4 contacts running through it and a ball bearing inside. This sensor prevents the tracker from pointing at the ground and also gives the y-axis an end-stop. Solder wires onto the 4 pins of the tilt sensor then glue it on the back side of the mirror with the leads running horizontally. With the mirror pointing straight upward, the BB should be resting on the 2 middle leads.
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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