Betta fish is a type of fish that reproduces by laying eggs. When spawning, the body of the male betta fish will hook up with the body of the female fish. After the eggs fall, the male betta fish will lift the eggs to be placed in the nest. Betta fish nests consist of air bubbles created by the male betta on the surface of the water. Don't be surprised if in our betta fish tank there are air bubbles above the water, it can mean that the betta fish feel comfortable in its place. Betta fish like calm water. Betta fish can last a long time without eating, because while guarding the eggs, the male may ignore everything and concentrate on the larvae. Lift those who fall from the bubbles. But there is some information that says male betta fish can eat their own young. Therefore, when the male is guarding the eggs and larvae, keep feeding them as needed. Betta fish including types of fish that can mutate. Betta fish color can change for several types, starting from dark, then fade to
Robot line follower is a robot that is designed to be able to walk following the color of the line. Of course this requires basic knowledge of programming. In a line follower robot, we need a color sensor that will be used to detect line colors. Usually to distinguish between black and white. This color sensor, we can use infra red sensors, or can also use the LDR. Once we have a color sensor to detect the line, then we need the brain to make the robot can walk along the line. We can make it with an analog circuit, or with an IC that we will later fill with the program. To charge IC from line follower control, we can use arduino or by using Asembler programming. To learn this program, we must know the basics of logic. If we have the desire and sincerity in learning, to make a line follower is not a difficult thing. To make it easier we have a description of line follower, I took this from youtube video about lne follower. May be useful. link video : https://www.youtub