RIP Never Used BBB

hello people, please excuse my for my Tarzan English.
first connect my BBB with a 5V supply 4A with the negative in the middle, might have killed her so easily?
now with the positive in the middle got hot and nothing more happend.

Yep. That will kill it.

Gerald

Reverse polarity is pretty well-known way to kill many devices.

I think I would of paid 10 - 12 extra bux for a BBB that had some protection. Feels like at any moment my BBB might suddenly spontaneously contract “magic smoke” disease and all it’s electrons fall out.

But, our goal was as low a price as we can get. Adding a protection against all the things that could happen means it would have to be water poof and withstand 220 VAC on the input. That is more than $10 to $12.

Reading the manual and the wiki is free.

Gerald

I think I would of paid 10 - 12 extra bux for a BBB that had some protection. Feels like at any moment my BBB might suddenly spontaneously contract “magic smoke” disease and all it’s electrons fall out.

Since there are very few of you who have done this, why should the rest of us have to pay the extra cost. I think there are less than 20 out of 150,000 boards shipped.

Regards,
John

I wasn’t saying make it bullet proof, just some simple goof proofs. Like on the 5v plug, that kind of thing. I get the whole cost thing and by and large agree.

I’m sure to try and cover everything would cost a bit, Not sure why anyone would be putting 220v to the 5v plug, but i could understand reverse polarity on the 5v plug. Not sure it needs to be gone to the extreme.

How hard/costly is it to fix something like reverse polarity or blown gpio? if repairs are easy enough, perhaps protection isn’t worth it.

I wasn’t saying make it bullet proof, just some simple goof proofs. Like on the 5v plug, that kind of thing. I get the whole cost thing and by and large agree.

I’m sure to try and cover everything would cost a bit, Not sure why anyone would be putting 220v to the 5v plug, but i could understand reverse polarity on the 5v plug. Not sure it needs to be gone to the extreme.

How hard/costly is it to fix something like reverse polarity or blown gpio? if repairs are easy enough, perhaps protection isn’t worth it.

Think economics and not technical. Since there were very few returns because of reverse polarity, it isn’t cost effective to add the protection to each board. For example, circuitco has shipped 177,000 BBB multiplied by $10 protection is $1,770,000. Less than 20 returned because of reverse polarity at $55 each is $1,100. The solution is obvious. Gerald is very smart and he knows what he is doing :wink: Users just need to be more careful.

Regards,
John

John no worries my friend I hope you didnt take offense im a Texan to boot and was only thinking outloud. Wasnt implying anyone made a mistake or how smart they are or are not. Ive been quite surprised how on top of everything Gerald is. No doubts John hope you didnt take offense or think I was downing the product any. Was NOT the case. I think its a great product and cant wait to see whats next.

Personally I wish the support for bonescript was larger but that will take time.

John no worries my friend I hope you didnt take offense im a Texan to boot and was only thinking outloud. Wasnt implying anyone made a mistake or how smart they are or are not. Ive been quite surprised how on top of everything Gerald is. No doubts John hope you didnt take offense or think I was downing the product any. Was NOT the case. I think its a great product and cant wait to see whats next.

Don’t worry so much, nobody gets too serious here. Gerald explained his thinking a while ago and I was just giving him a break because he is really busy working on his next project.

Regards,
John

This is something anyone should check. Always. But of course it doesnt happen 100% of the time. Much easier than waiting x amount of time for the new one to arrive, not to mention now you’re out ~$60 US.

How much does the compatible 5V power supply cost? It stuns me anyone would plug in power without verifying the polarity is correct. The way I see it, it’s kinda like the Darwin Awards.

I must admit, I have often wondered if anyone will create a mains-powered supply with +5V and +3.3V output.
Designers would still need the occasional 2.4 and 1.8V regulators but overall design should be simpler.

Board costs less, supply costs more - may include features like shutdown under software (shutdown -h now)
Could be used with other dev boards : Arduino, Pi, etc.
Add a HDD compatible connector for future expansion, or the Cubieboard which already has SATA.

Would you buy such a dev board / supply combination?

They are called PC power supplies . . . :slight_smile:

-david