Bar code reader

Hi Mr E and Rob,

We have made some more progress with Mr E. We learnt how to do connect our robot to the computer using Bluetooth. Mr E showed us how to make the robot recognise the thin and thick lines and the piece of blank paper by using a threshold. If the robot is on the thick lines it will be greater than 150 or 100 and the thin lines will be less than 150 or 100. Thank you Mr E for coming to the school to helping us.

 

From Miki, Lydia and Katiya. MBPS2

NO PROGRESS!!!!!!!

Hi Mr E,

We tried your program that you emailed Mrs Smith and it worked. The second one we tried just beeped. We didn’t  have any more progress after that. We had lots of difficulties with making the robot detect the thick and thin lines. We know it is something to do with our program but we can’t figure out what it is. It was quite frustrating that we couldn’t figure it out

From Katiya, Lydia and Miki

Barcode Challenge

Hi Mr E,

We’ve been working on the first part of the barcode reading challenge. It does beep when it goes over the line, but if we have the colour sensor too low, it detects the floor and beeps, because we have a dark blue coloured floor. It detects the thin lines now. We have tried to trouble shoot as much as we can and we think it is finished. We have realised that with the thick lines it beeps at the start and the end of the line as well. How do you make the robot sense only black and make it beep only when it goes over black? We thought we had it set that it would only sense black, but why does it sense the dark blue on the floor? Does it have anything to do with the lighting? Here is screenshot of our program:

 

 

Here is a video of it:

From Katiya, Miki and Lydia.

The start of level 5

Hi Mr E,

Today we started level 5 and got a little bit of progress. Meaning we got it working then it stopped working so we tried changing our program lots of times but couldn’t figure it out. We start the program and the robot drives forward for a few seconds then it beeps and the program stops before it goes over the black lines. We think that the problem is that we changed something so we will change it back again next session.

From Katiya, Lydia and Miki

Finished!

Hi Mr E,

Today we finished the terrific transport thanks to the robot and the advice you gave us. Thank you again for the robot because without it we couldn’t have finished. We managed to pair them after a few tries and had lots of fun playing with it. We drove it up and down the hallway, although we have trouble steering it around, so it mainly spins around in circles. Here is a video of us controlling it.

From Katiya, Lydia and Miki.

The gentle stop

Hi Mr E,

Today we started and finished the gentle stop challenge. We finished it with little difficulty or mistakes though we did make one mistake of putting the ultra-sonic sensor in the wrong port and it went backwards.

From Katiya, Lydia and Miki

Completion of the Ferris wheel

Hi Mr E,

We have completed our Ferris wheel and it works pretty good.  We made it spin slowly like a real Ferris wheel with a motor speed of 11. It took a while to get the pieces together and to make the base stable and level so that the wheel part would spin properly. We changed the number of the motors from 2 to 1 because we were advised that it would be easier and better with 1 motor on the side because with 2 motors we would have to synchronise the two for it to work. We couldn’t get the touch sensor to stop the program, so we had to press it multiple times to get it to stop. Sorry we haven’t put in any photos but here is a video:

 

From Katiya, Lydia and Miki

 

Lots More Progress

Hi Mr E,

Today we made the supports symmetrical and level so it can hold the Ferris Wheel better. We had a few problems in getting it level but we fixed that so now we can perfect the program we have. We are not that far off finishing the Ferris Wheel and are hoping to be done soon.

 

From Katiya, Lydia and Miki.

Even More And More Work

Hi Mr E,

Miki and Katiya have  made the structure stronger by making it like a triangle at the bottom. Unfortunately this meant that the middle part was not level anymore. We still need to fix it, but we are working on it.

 

From Miki, Katiya, Lydia, MBPS2