chapter 4 reading sensors

Our homework was to read chapter 4 and yes it was a long one.
In this chapter we go into a little more detail about some of the sensors then in the last blog.
First we talk about the NXT the is was another NXT first before the one that we are using now
The difference from the old one and the new one is that the old one had 3 port instead of 4, the wiring was different to the connectors were bigger.
Then we talk about the touch sensor when we did some of the other challenges this sensor might have help out a bit but we didn’t know much about so we were not able to use it unfortunately. The was that the touch sensor works is the same way that it’s called touch sensor , when you right your program you can program the touch to stop when it is press or tell it to go in another direction whatever you want it to do. The 3 states of this sensor are pressed released and bumped. There are ways to program it for races when it detects another robot it can be pressed and it will speed up if you are in a bumper car race. The main problem that you can face with this robot is work in a room with a lot of obstacles the robot will start to do things you don’t want it to do. With this sensor you don’t have to calculate a threshold
Next we talk about the light sensor the way the light sensor works is that it detects different types of light for example if the sensor see’s white and black you can program the robot to move a certain motor so then the robot will go left right and so on. But before you can do anything you might want to calculate the threshold. When you have the light sensor on the back of the robot and the robot going backwards you will notice that your line tracking will be more accurate.
Then we have the ultrasonic sensor I liked this sensor the best I think it would have work really will during the circuit race. The way that this sensor works is that it can decent how far an object is and it can do the right action rather it’s stop or get back on course.
We also talked about having multiple sensors connected to the same port (multiplexing). It like using a splitter in away.