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Topic: ROV motor (Read 3231 times) previous topic - next topic

moolc0ol

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I cee, yip that would work, use one for max and another for half - I still like the pulse idea though, I'll be trying that one with trusty tooth brush :)

Yeah. My issue with the pulsing idea is lets say it pulses every second, there would be a bit of a lag. and i understand that a relay could reverse the motor but how would that be configured? I think im going to make a digikey order soon so im gonna need a parts list. the relays of course, that chip for the relays you mensioned earlier, Im going to need something to be a light for underwater... Preferably not LED based because led's that are bright enough to illuminate stuff underwater are expencive. halogen? do i need stuff to make a PCB? im going to make it a breadboard at first. A pcb just looks so much more presentable. and im  still looking for camera equip. It would be neat to have some sensors on board. any suggestions? temp? pressure?

Cheater

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because led's that are bright enough to illuminate stuff underwater are expencive.

1W leds are only about $3 each.

My 8x8 true colour display using 24 74HC595's will give a good indication of how well artificial PWM works.
I intend to do a tight loop switching them on and off as quickly as possible.

You could use multiple controllers.
The Arduino for controlling the robot and another one for doing PWM.

A better idea than relays is this.
A 8 channel IC for high load stuff. :)

moolc0ol

Quote
Quote
because led's that are bright enough to illuminate stuff underwater are expencive.

1W leds are only about $3 each.

My 8x8 true colour display using 24 74HC595's will give a good indication of how well artificial PWM works.
I intend to do a tight loop switching them on and off as quickly as possible.

You could use multiple controllers.
The Arduino for controlling the robot and another one for doing PWM.

A better idea than relays is this.
A 8 channel IC for high load stuff. :)


http://www.makezine.com/blog/archive/2007/09/make_a_pocket_led_cube_we.html
that might help you

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