HYPER PEPPY is a robot with a built-in sensor which reacts to vibration from sound or physical contact. It moves forward but when it senses a high pitched noise(such as a hand clap) or vibration from physical contact with an obstacles, it retreats by reversing and turning left for a preset time and then continues forward on a new course. You will enjoy its crispy movement. You can learn the mechanism of sound sensor and the ratchet mechanism.

::TEST::

ari ni aku g klas cam bese walaupun dtg lambat.takpe,aku naik moto...so,takde la kene kuo awal2 nak tunggu bas.5 minit dah sampai kampus.kol 3 ade test...subjek:mokroelektronik.mule2 masuk dewan,debar2 gak.sbb dlm pale otak bayang cam soklan yg aku takleh nak jwb.masuk je dewan,bace doa penerang hati.dpt kertas soklan,ermm...ape lagi.terus ler buat.mase:1 jam.aku abih menyiapkan sumer soklan dlm lebey kurang 25 minit.pastu semak 5 minit.malas nak tunggu lame2 aku pon hantar kertas pastu blah...lega rasenyer.balik dgn hati yg senang.perut lapo,terus mkn laksa yg member aku buat utk celebrate besday die.lps kenyang pastu ade lagi...mate layu.terus terbongkang.hehe.....

risau tak dpt tempat nak praktikal lagi...:(