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The robot

 The robot on April the 17th 2000


We blew up our 1st balloon !!!

Bang !
  Grumpy
Grumpy
Grumpy
Description :
Grumpy is monitored by a 68HC11. It has infra-red sensors to detect the lines and contact sensors to react in case of collision. Its calculation power allow it to use the line to detect its position without necessarily following them.

Progress :
It made its firts steps on the playing ground ! The electronic boards are OK. The mechanics seems secure. It is a tracked vehicule, and we will have to find a solution for the bands which spin a little and prevent it from climbing the hill easily. As far as the programm is concerned, Grumpy is monitored by timers for the moment. The use of the sensors must be implemented. The batteries have also to be fixed properly, a shell for the protection is needed and a needle must be fixed to burst the balloons.
  Doc
Doc
Doc
Description :
Doc is monitored by a PIC 16F84. It has infra-red sensors to detect the lines. Its aim is to follow the lines up to the balloon to burst them out.

Progress :
It made its first steps on the playin ground with emotion ! All the electronic part is fixed and set. The mechanics is also OK. The program has to be done. For the moment, Doc uses the program of another robot and makes its test diodes blink when it passes the lines. The program has to be adapted to follow the lines efficiently. The shell and the needle have also to be fixed.
  Happy
Happy
Happy
Description :
Happy is monitored by a PIC 16F84. It has an infra-red receiver to detect the beacons and a contact sensor. Its aim is to start using timers to move and then to use the beacons on the mobile balloons to go near them and burst them.

Progress :
It blew up the first Fribotte balloon ! The IR transmission/reception works quite well. One beacon has been made, the others have to be done. The tilting of the transmission diodes and the receiver must be adjusted. The mechanics is ok, except the needle which is is quite oddly fixed for the moment (see the picture) and the shell must be made. The program is operational. Some adjustements must be done for the part using timers.
  Dopey
Dopey
Dopey
Description :
Dopey is monitored by a PIC 16F84. It only has a contact sensor. Its aim is to make all its way to the balloons using timers.

Progress :
It drove and drove and drove on the playing ground ! The electronics is OK, the program also, some adjustements must yet be done on the ground.
  What about the others....
Their progress is slow but secure... They couldn't drive on the ground this time, but don't worry, you will see them soon ! :-)
  Snow White
Snow White
Side view
Snow White
Leaning view (!)

Nothing new about White Snow. But checked that the robots fit inside it.
Conclusion : it's ok !
  Conclusion
We made a few major modifications : all the robots will have needles to blow up the balloons. We won't use hop spots as we don't have enough time to finalize them. Besides their is nothing to drive for the needles and it makes things simpler. 45 days remain and we focus on efficiency.

We are sure of it now : we will come at la Ferté and our robots will be with us ! And besides they may still work ;-)

Champagne
To our first balloon !


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Last modified 20 april 2000