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achingbrain / nodebotwars

Robots fighting each other
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Raspberry Pi vs Beaglebone Black #3

Open achingbrain opened 10 years ago

achingbrain commented 10 years ago

Looking at the Pi more and I'm not convinced it's got what it takes to be a robot controller. I'm not 100% but dealing with the GPIO pins is a farce and there's only one PWM output (could do software PWM but meh), so we'll probably need a PiBot style breakout/expansion board which is beyond my ability.

The Beaglebone OTOH has 8 PWM ports and 65 digital I/O ports which is a bit more like it. Problem is it's only got one USB port. And no-one has any stock. And the camera attachment is really expensive.

Apparently this adapter provides bluetooth and WiFi but it's expensive and doesn't solve the camera problem although we'll probably see overall power draw drop.

This hub looks promising because it doesn't need to be attached to a computer to supply power to the ports - useful if that power is supposed to boot the computer itself. Throw in a battery pack and it might just work for an hour or so.

alanshaw commented 10 years ago

Nobody said the robot revolution would be cheap...or long lived.

achingbrain commented 10 years ago

Just had the "oh, yeah, that laser is weak but this one can burn stuff" conversation.

Didn't go well.