This term we are doing a humming bird kit as one of our rotation activities.
When we started to look at the humming bird and the snap program on our computers we found that the humming bird doesn’t work and come up with things from the humming bird to the computer. So first you need to plug in a cord so it connects to the humming bird then to the computer to program. the pieces that we are using:
- Mechanical Motor
- Servo Motor
- Humming bird with a Arduino Board
- 2 Single L.E.Ds
- 2 TRI L.E.Ds (Triple L.E.Ds)
- USB Cord
- Temperature sensor
How We Made TRI-L.E.D Light Up:
This lesson we made a L.E.D light up using the humming bird kit.
This is one of the programs that we were using a we got to change things on it. On the last bar where it has 0 for the letter G in the boxes, my group and I changed it to the number 100 and if you put it under the number 100 it wouldn’t show as much. On the 3rd bar it has 100 in the R and the B what that does is it make 2 colours show at the same time in the one LED light and then because its the colours red and blue it makes purple.
We found out that there is one cord that can tell the temp by putting your fingers or your hand on it and it will come up on the screen your programing the humming bird on. We used one of the cool packs in our lunch box and on the screen it came up with 18.0 then we made our hand really warm and it came up the 35.0 then we used some one else’s hands and it came up with 20.0. There are 3 coloured cords. There is a red, a yellow and a black. The black one is the negative. Where you connect the cords there is the letter S and the signs + and -. The S is for sensor which you put the red cord in, the + is for positive which you put the yellow cord in and the – is for negative which is black.
This is Hannah’s hands.
this is Romy’s hands. This is the cool pack.
How did this activity help you to get to know your classmates?
Yes because I don’t really know much about the people who aren’t in my class
Was it difficult to think of things to draw?
No because I knew what I was going to do when the teachers what we where doing
Did you discover anything about yourself?
No because I already know everything about myself
CHALLENGE: Move your robot forward
from the start line to the finish line and
back to the start. No turns.
When my partner and I were doing the programing we couldn’t figure out way it wasn’t loading to are EV3 brick. Then we figured out why it was doing it because at the top of the program it said D when it needed B+D. The reason why it needs the two letters is because the cords are connected to the letters D and B on one side of the brick so the commands go to the two wheels because of the two cords go to each wheels motor
What should you do?
- Move your robot from the black line to the green line and back using seconds, using degrees and using rotations.
1) What did you notice? Differences/Similarities between seconds, degrees and rotations? Which was most accurate? Least accurate
I fond out that if the speed is slower it will take longer to go one meter forward. If the speed is slower it will take less time to go one meter forward
for degrees we had to workout how many degrees it would be to go one meter forward one meter backward after along time of adding up me and my partner worked out it was 2060 forward and 2060 backward
In both of the third program where it has the sign of rotation we put in number 5 because that is how many rotations the wheel needed to get to the 1 metre and back 1 metre again.
When my partner and I were practicing a trying to get the EV3 robot to work we had to keep on changing the speed and how long the robot goes for to get it to the finish line and back to the start line again
colour sensor 1
A colour sensor Is a sensor that detects the colour of a surface. an EV3 colour sensor is specific to children, only connects to an EV3 robot and only picks up certain colours. I found out that you need to put a move steering block before the colour sensor block to make it move.
( I had to get a friend to hold a green piece of paper in front of the colour sensor otherwise the paper would interfere with the turning and the robot wouldn’t turn all the and get caught in the paper)
colour challenge 2
the challenge was to get your robot to go around a red boarded square continually. with this challenge I found out that you need to put a loop brick for your robotto go around the square continually.
colour challenge 3
this challenge was to get your robot to follow a black oval using colour sensor. this is kind of what the oval looked like.
what I found out from this challenge is that you need to make it turn so you know that it doesn’t work if the robot turns away from the line. this is my programing ,explanation of my progam and video of my robot working.
ultrasonic challenge 1
I used what I already know to make this program.
ultrasonic challenge 2
with this program I used the last one and experimented and added things and then learned how it worked.