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Camellia Café presents a special designed Crab Robotics Car model being controlled by Camellia CAPPUCCINO servo motor controller with ARM technology. Each wheel has an individual LEGO motor to drive wheel running speed, distance, time and direction. And each wheel has another individual LEGO servo motor to steer it in a precise angle. Thus 8 LEGO motors are used. Normal: Run forward, backward, or turn Traverse: Run in traverse as a crab with wheels 90 degrees Spin: Spin with wheels 45 degrees Motor: Wheel self-driven motor Motor: Wheel steering motor When turning each wheel in a special degree. It will very easy to turn left or turn right in a short radius. As each wheel has an individual motor to drive it, it is powerful. I think this is a real, real, real four wheel drive car. As each wheel driven motor is a servo motor, it could run in a preset distance. It can run in traverse just like a crab. This is why we name it after crab. Consider all, it is more than a car. It is also a robot. This is why we also name it after robotics. Please drive this Crab Robotics Car. Just make you own robot at home. http://www.camellia.xin/models/crabcar.html -
Hello, Almost all of us use Sbricks as just "long range remote control with smooth speed control", right? It take time to know more about Sbrick functions that can be programmed using Profile designer. New possibilities, opened with Sequence and Circuit, was not presented and described well in guides (SBRICK Team should do a detailed guide and how-to manual). So I have to learn them by myslef. Car is just a mule for all functions we planned. So no need to describe design. We did it with my son for robotics contest in his School in January. Functions Independent suspension openable doors, including motorized rear door Rear wheel drive and steering Auto turn lights (+ manual buttons) Auto emergency lights (+ manual button) Auto backward drive light (+ manual button) Daylight and rear lights powered with solar panels All electronics 2x L motor for propulsion Servo motor for steering 2x LED for turn and emergency signals 2x LED for front and rear daylights 1x LED for backward drive signal M motor for trunk door opening WEDO tilt sensor for safe/dangerous drive control 1x LiPo batery 2x Solar panels 1x Smart Brick 1x Smart Brick PLUS Control profile is a mess of buttons. I think I need a real designer to design something nice in designer profile Small buttons are circuits, that are ON on the start, and no need to press them. So that's why I make them small (May be, hiding them is the better design decision) For example, circuits was used to make aut turn light: left or right turn LEDs are on depending on SERVO motor rotation direction. Circuits are like "IF" functions, that can be linked any port of Sbrick, but it is not described in Manual, so I have to expore it by myself. Round sequence buttons work like ON buttons but with programmed timings and power. So I can do blinking lights with described intervals of LED on and pauses between. The same I can do with motors. When driving, you can see that some sequence buttons on the iPad turns ON automatically (I don't press emergency, backward or turn rights at all) Another experiment: solar panels. They work well with LEDs. They even make work Sbrick. But too weak for motors. I saw some moving cars on YT with one solar panel and one motor under bright sun, but I can't name that "CARS" - just some liftarms and wheels with solar panel and M motor. My car is too heavy. Almost all functions can be done only by Sbrick. Sbrick PLUS is only used for connecting WEDO Tilt sensor. Tilt sensor detects "agressive driving": fast acceleration or brakes, crashes, shaking and roll over of course. Then circuit sends command to emergency lights. Another function I planned, but failed: automatic rear door opening detecting hand or leg under the rear bumper (like modern cars do). Unfortunately, I can't set up WEDO distance sensor. It should detect leg and open door only at small range. But everytime it detects surface under the car - it opens the door I also have to do some tricks, for example "all off" circuit, to prevent manual turn off emergency and rear drive light after every auto turning on... I think, this can function can be useful for big supercar scaled models or truck, especially for events. But Sbrick team shoud do a user friendly predesigne profiles for that and do a detailed manual for every function in profile designer. And I am also waiting for iOS support drivers You can turn on english subtitiles in the video. Describing how to programm all that buttons in Designer Profile need a separate video. Thanks.
