Our strategy was based on our ability to traverse complex, tape ridden terrain in the most efficient way possible: with superior speed. Even though we only went for goal #1, which was the lowest scoring goal, by acting quickly and finishing the game early, we hoped to limit the other team`s points. Our mechanical and electrical designs were cen
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tered around our need for speed. We designed an autonomous robot that implemented a simple strategy to collect balls, hold them, and release them into goal #1. To collect balls, we placed a piece of foam core in the front of our robot to depress the ball request button. As each ball dropped from the dispenser onto our robot, a funnel-like device channeled the balls into a hole, which led to a PVC pipe with a door motor acting as an electro-mechanical switch to prevent balls from leaving our robot. Our robot`s chassis consisted of a -thick piece of laser-cut acrylic (10 x 3 ) and a 1/8 -thick piece of laser-cut masonite (10 x 10 with fillets). We placed the front edge of the acrylic piece two inches from the front edge of the masonite, which was also the front edge of our robot. This decision was based on our desire to place the drive wheels closer to the front of our robot rather than in the middle. To provide our robot excellent stability while driving, we placed two spherical caster wheels at the back side of our robot. We placed these two casters 4. 67 apart center-to-center, which was long enough for stability, yet not significantly long to prevent our robot from moving too slowly at a given duty cycle. To track the various pieces of tape on the playing fields, we implemented a set of three QRB1134 reflective object sensors. Each adjacent pair of tape sensors was placed 0. 5625 apart center-to-center...
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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