ROBO ALIVE Robotic Snake Series 3 (Red) Light Up Toy, Battery-Powered Robotic Toy, Realistic Movements, Toy Lizard

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The SnakeBot, also known as a snake robot, is a biomorphic hyper-redundant robot that resembles a biological snake. Snake robots come in many shapes and sizes, from as long as four stories (earthquake SnakeBot developed by SINTEF [1]) to a medical SnakeBot developed at Carnegie Mellon University that is thin enough to maneuver around organs inside a human chest cavity. Though SnakeBots can very greatly in size and design, there are two qualities that all SnakeBot share. The small cross-section-to-length ratios allow them to move into and maneuver through tight spaces and their ability to change the shape of their bodies allows them to perform a wide range of behaviors, such as climbing stairs or tree trunks. Additionally, many snake robots are constructed by chaining together several independent links. This redundancy can make them resistant to failure because they can continue to operate even if parts of their body are destroyed. Properties such as high terrainability, redundancy, and the possibility of complete sealing of the body of the robot, make snake robots very interesting for practical applications and hence as a research topic. [2] [3] A SnakeBot is different from a snake-arm robot in that the SnakeBot robot types are usually more self-contained, where a snake-arm robot usually has remote mechanicals from the arm itself, possibly connected to a larger system. One of the main problems with the previous steps was that each piece of the project was constructed separately, but when added together it created problems in the programming. The photocell sensors required immediate reaction to control the motors, but the groups of LED and vibration motor needed different lengths of delays to control them. Also the LED groups blinked at the same time even though they are supposed to be three separate groups. To control everything in the code the way we need to, we require a timer. To add more LEDs onto same circuit, the LEDs must be set in parallel to each other, and everything else will be the same. The same code will be used in this part also because nothing has changed. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. We then take the differences between Sensor 3 and Sensor 5 (and store it in photocellDifference1) as well as the difference between Sensor 4 and Sensor 5 (and store it in photocellDifference2). This will tell us how much brighter the directional sensors are from the ambient sensor. Since the light will be shinning on these sensors, the difference readings should tell us how much light is being directed at each sensor.

In this step we will be taking the three photocell sensors and using them to drive the motor speeds. In our code we will be refering the motors to Motor A or Motor B, based on where they are plugged into the motor shield, and the sensors will be Sensor 3, Sensor 4, and Sensor 5, based on where they are attached to the analog readings. Sensor 3 and Sensor 4 will be the directional sensors and Sensor 5 will be the ambient light sensor. Find sources: "Snakebot"– news · newspapers · books · scholar · JSTOR ( September 2008) ( Learn how and when to remove this template message) Adding the vibration motor is very similar to the LEDs. It does not require to be connected to the 5V power supply on the arduino board, but gets it’s power from the Pin it connects to. We are connecting the vibration motor to Pin 10. It does not matter what pin you connect the vibration motor to, but we wanted to physically separate it from the LED groups for less confusion.

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Cut two a piece of rubber about 1.75" diameter, so that it fits inside of the vacuum reducers. Cut two pieces of cord about 2 feet long, to act as tethers and to help position the body inside of the skin. To control the motors, we will be getting the base reading from all three sensors first (these are stored in photocellReading#). Again, in this step, we found it was easiest to draw out what we wanted timing wise, so we could easily see when to turn on and off each component. When setting up multiple sensors, just use the same circuit example as the first one. Each sensor must have its own line to power and ground and cannot be a part of the same circuit; this will make finishing the snake easier in future steps. Also, make sure your resistors are the same, since this affects the analog readings, we need all the sensors to be reading similar values. So if you have the servo shield, solder on the screw terminal; two rows of headers where the 6V and GND from the battery are connected. Solder on male headers so it will mount in your seeeduino (or arduino) mega. I'm using the seeeduino again because i had it around, and because it is smaller so it fits better into the skin tube (the protective outer layer).

Snakebots are used in situations where their characteristics give them an advantage over their environment. These environments tend to be long and thin like pipes or highly cluttered like rubble. Thus, Snakebots are currently being developed to assist search and rescue teams. When a task requires several different obstacles to be overcome, the locomotive flexibility of SnakeBots potentially offers an advantage. [4] When setting up the project in previous steps, everything was attached pretty closely to the breadboard. If we want out snake to be the full length of the base, we will need to create wire extensions for various portions of the electrical. Make sure that after "PORT:" it says something like "usbserial-A700xxx". If not, select "RESCAN SERIAL PORTS". Again, the code is similar to the photocell instructable. We create photocellReading variables to store the analog readings from the pins and then start the main loop. We will set the variable to the analog reading and print it out to see if it is working. We pause for 1 second, or else the reading will print out so fast we will be unable to read them.Just string the other piece of string through. Leave about 10 inches of string on the inside, and a little more on the outside. This string acts solely as a tether. You can eventually lengthen it by attaching another string to it so that you can have a longer tether. a b Marvi, Hamidreza (2014-10-10). "Sidewinding with minimal slip: Snake and robot ascent of sandy slopes". Science. 346 (6206): 224–229. arXiv: 1410.2945. Bibcode: 2014Sci...346..224M. doi: 10.1126/science.1255718. PMID 25301625. S2CID 23364137 . Retrieved 2016-05-04.