NICE: just add

[RaffT]

balancing robot:

http://www.instructables.com/id/Balancing_Robot/

[glutnix_neo]

Gusto ko rin gumawa ng robot kagaya nito yung parang segway, ang problema ko lang eh yung sensor pandetect ng tilt angle, sabi  nila accelerometer daw kailangan kaso di ko lam saan makakabili nun at papano gamitin,Kung LED naman gagamitin(detect distance from floor) hindi naman pwede kung ramp na yung dadaanan.

yung nasa instructibles wala maxado problema, kaya nya magbalance pero di kaya tumakbo forward. Mas challenging din kung kaya umakyat sa ramp.

Nice robot anyway.very simple.

[maldihtah13]

sa alexan may accelerometer. Gusto ko nga rin bumili.

[RaffT]

yes.. .very simple nga.. nung una ko makita, sabi ko,aba wow.. may instructable pala.. heheheh

pero switch lang pala gamit... balak ko sana gumawa, with a PIC .. pero NO TIME...

may x-y tilt chips naman ako dito... pero di ko pa na-study HOW to read PWM... pulses kasi output nun....

[paranz]

yes.. .very simple nga.. nung una ko makita, sabi ko,aba wow.. may instructable pala.. heheheh

pero switch lang pala gamit... balak ko sana gumawa, with a PIC .. pero NO TIME...

may x-y tilt chips naman ako dito... pero di ko pa na-study HOW to read PWM... pulses kasi output nun....

for a quick start, refer to the CCP tutorial at microchip.com 

[underprezzure]

Gusto ko rin gumawa ng robot kagaya nito yung parang segway, ang problema ko lang eh yung sensor pandetect ng tilt angle,

kung mala-segway na then better use the standard "gyroscope'. kaya nga lang halimaw ang presyo.

Meron akong sariling solusyon para neto. instead of a gyroscope eh gagamit lang ng tubig na at ilagay sa tube at may IR sensor . parang ganito oh..



kapag na tilt siya then i-compensate agad ng motor mo ang angle para bumalik sa 180 degrees. di ko pa ito na-implement pero this is the simple way to do it.(I think  )

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[maldihtah13]

Bakit di na lang two cylinder positioned at the edge of the platform tapos may connecting rod. tapos ang measurement eh volumetric. Kung may tilting lilipat un tubig sa kabilang cylinder so kailangan mo itilt sa kabila ksi dapat equal lagi ang volume ng dalawang cylinder.

[RaffT]

for a quick start, refer to the CCP tutorial at microchip.com 

yes.. pero di ko pa magets... hehehe lahat mga sample eh mga RS232 ang outputs...

[underprezzure]

Kung may tilting lilipat un tubig sa kabilang cylinder so kailangan mo itilt sa kabila ksi dapat equal lagi ang volume ng dalawang cylinder.

nakabase kasi ang idea na yan sa mercury tiltinng sensor. pero maganda nga talaga ang cylinder. in the future i will try these in real applications.

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[glutnix_neo]

yes.. pero di ko pa magets... hehehe lahat mga sample eh mga RS232 ang outputs...

mukhang cool dude mas ok kung graduated yung level para pwede ka mameasure mo kung gaano kalaki yung tilt,

[RaffT]

mukhang cool dude mas ok kung graduated yung level para pwede ka mameasure mo kung gaano kalaki yung tilt,

i was thinking yung IR sensors(yung may slotted disk na dumadaan sa gitna) as the main sensor..series of 1,0 yun...

[underprezzure]

@-=Rafft=-
Yes.It can be done easily. But both of our suggestions will be very difficult when calibrating these type of set up. Mine would definitly needs a accurate PID control before it will work smoothly. What i mean is that my design would possibly result to jerkness/fluctuating outputs.

Could you think of a possible solution where we can make a smooth output especially when the mobile robot is at motion?

Second, what PID algorithm we can make to avoid bumpiness of the robot'smotion? say, when the robot moves on a linear/flat plain (from point A to point B) and while the robot moves to point B, it suddenly tilts to point A. Isn't so hard, is it? 

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[RaffT]

 how about hall sensors?

[underprezzure]

how about hall sensors?

Hehehe. Fuede. Nga pala nakalimutan ko pala ,sa isang post momay hall sensor query ka pala.
Kaya lang masyadong sensitive and Hall sa mga EMF and RFI. Sa mga sasakyan, it is completely isolated. para hindi ma-interfere. pero plausible naman. 

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[RaffT]

Hehehe. Fuede. Nga pala nakalimutan ko pala ,sa isang post momay hall sensor query ka pala.
Kaya lang masyadong sensitive and Hall sa mga EMF and RFI. Sa mga sasakyan, it is completely isolated. para hindi ma-interfere. pero plausible naman. 

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hmmm.... ibang hall sensor kasi balak kong gamitin.. yung nsa floppy drives.. yung 4 legs... symetrical kasi gamit nito...pairs(supply) and 2 outputs... kita ko sa instructables meron nito...

di ko pa ito napag experiment in acual... kaya theory lang muna

[underprezzure]

Hmmm.. Cool!! mabaklas ko nga rin sa bahay ang sirang FDD ko. try ko rin gawin..
Paunahan na lang tayo... hehehe 

pero I think pareho pa ring ang theory behind niyan and the output property could be just the same with the commercial sensors.

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[glutnix_neo]

may hall sensor din pc brushless fan

[RaffT]

Hmmm.. Cool!! mabaklas ko nga rin sa bahay ang sirang FDD ko. try ko rin gawin..
Paunahan na lang tayo... hehehe 

pero I think pareho pa ring ang theory behind niyan and the output property could be just the same with the commercial sensors.

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hehe mauna kana... pero dapat FAST processing cguro yun... F877 run @ 27MHz

[underprezzure]

@-=Rafft=-

Yup. I will try do "overclocking". ewan ko lang kung gagana..

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[RaffT]

@-=Rafft=-

Yup. I will try do "overclocking". ewan ko lang kung gagana..

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gagana yan.. naka overclock ako ng 16F877-20/P using 27MHz xtal.. hanapin mo DIY scope..andun yung ckt ko