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.

In the code, you can see we have a long list of if else statements controlling the speed of each motor. This code works for our snake and our photocell sensor/motor combination. If you have changed the materials for your snake or find that these values don't work for you, when feel free to change the values until you find speed control that works for you. Our snake is meant to work in low light and at a pretty fast speed. If you want your snake slower, for example, you may want to widen your range of lrValues in the if else statements, so that it will take a high powered light directed at one sensor before the motors reach highest speed. cut length of plastic 5/16" tube to the length of the snake. Slip it over the OUTPUT nozzle on the pump (the more narrow nozzle is the output). I like to briefly blast the junction with a heatgun once I slip on the tube to make the connection nice and snug. Secure a hose-clamp around the tube at the joint. A robot snake has been developed by scientists in the race to advance the abilities of search and rescue machines. I wrote a software library to easily generate wave locomotion based on oscillation. It calls on the Servo Arduino library to generate a sine wave propagating down the line of servos. It allows for modularity to change the sensory input, wave parameters, and number of servos. I think if you added a tank (or multiple outlet tubes) to the pump, then another pump to empty that tank/tubes you could use the first to take on water and sink and the other to empty the tank or both as forward propulsion but all of this would greatly reduce the longevity but for some applications like marine life monitoring that would probably be acceptable.apply silicon marine sealant around the two seams in the plasitc of the servos, around the spot where the wires are inserted, and where the screws are mounted on the bottom.

In this step we will be setting up three photocell sensors, all of these will be needed to complete the snake. Two of these sensors will become directional sensors, controlling the motors. The more light either the right or left sensor will have will control how much power each of the motors will receive, controlling the speed and direction of the snake’s movement. The last sensor will become the ambient light sensor, detecting how much light is in the room. This is necessary for each of the directional sensors so they can tell how much more light is being directed at them; and it is necessary for the leds, if the room is dark, the leds will light up. Try using strings to attach the base boards together. Allow boards to have around half-inch space in between the board so the snake has some free movement in between the boards. Sneel is an open-source, biomimetic, locomotive, aquatic robot. The electromechanical design of Sneel mimics the structure and motion of a real water snake, as a test to explore swimming behavior in an undulating linear robot. The inspiration for Sneel originates from a fascination with reptilian forms of motility and the implications of modelling hardware from biological structures and functions. Sneel uses a custom-written software library to propagate an oscillating wave down a line of servo motors that comprise the robot’s body. The current model is a platform for the development of other low-cost snake drones, with semi-autonomous navigational control for waypoint following, and sensing capabilities for obstacle avoidance. Worldwide applications for Sneel include remote marine data collection of salinity / toxicity levels, nuclear level monitoring, pipeline or underwater exploration, fishery monitoring, and oil-collection. When attaching wiring to the LEDs, make sure that the wiring attaches to the long or short side of each LED. You cannot connect different sides of an LED together on the same circuit, they will not be able to turn on. Find sources: "Snakebot"– news · newspapers · books · scholar · JSTOR ( September 2008) ( Learn how and when to remove this template message)

They're based in convenient locations including supermarkets, newsagents and train stations. Plus they're often open late and on Sundays.

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. 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. SnakeBots are currently being researched as a new type of robotic, interplanetary probe by engineers at the NASA Ames Research Center. Software for SnakeBot is also being developed by NASA for them to be able to learn by experiencing the skills to scale obstacles and remember the techniques.You should get an integer returned, corresponding to the baud rate xbee is set at. To make sure it is set to 57600, type "ATBD 6" then ENTER.