I'm joining the dark side - they have Pi
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I finally broke down and bought a raspberry pi. I feel like it's cheating since it's a small computer, not an IoT device as such. However, it runs linux and will run GCC so I can use it to test out my driver code directly without long dev cycles i usually deal with uploading my binaries via serial. I bought a 512GB microsd card for storage I'm hooking it into my primary display and I have a keyboard i can use with it. I also have a 5" hdmi touch display i bought for my logic probe/scope, but i can use it for this too. Any other "must have" gear I should get with it?
Real programmers use butterflies
Are you sure this purchase is not a result of circular reasoning?
"The difference between genius and stupidity is that genius has its limits." - Albert Einstein
"If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010
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Are you sure this purchase is not a result of circular reasoning?
"The difference between genius and stupidity is that genius has its limits." - Albert Einstein
"If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010
Pi shaped reasoning, so yes I suppose =)
Real programmers use butterflies
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Yes. half a terabyte. I didn't want to run out of room, and it was $35
Real programmers use butterflies
Linky? All 512GB MicroSD cards I can find on Amazon right now are starting at CAD$80. Well, there are a few that go for $20-something, but those have to be crap. If you haven't done so already, I suggest you try filling that 512GB card with actual data. Then try to read it back. Only then should you trust it to have that actual capacity.
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Linky? All 512GB MicroSD cards I can find on Amazon right now are starting at CAD$80. Well, there are a few that go for $20-something, but those have to be crap. If you haven't done so already, I suggest you try filling that 512GB card with actual data. Then try to read it back. Only then should you trust it to have that actual capacity.
I thought $35 was cheap, but whatever. if it's not 512GB i don't really care. i didn't look for the cheapest one or anything.
Real programmers use butterflies
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I thought $35 was cheap, but whatever. if it's not 512GB i don't really care. i didn't look for the cheapest one or anything.
Real programmers use butterflies
honey the codewitch wrote:
if it's not 512GB i don't really care
I think you will care if you write to it and start encountering otherwise inexplicable failures, even if you stay well below the claimed capacity. Years ago my employer got 64GB USB sticks (when those were still a new thing) for very cheap, for a trade show, and we loaded them up with marketing material. And while we only needed just a few hundreds of MBs (if that), some couldn't be written to or read back at all. If it's too good to be true, that's usually the sort of device you're dealing with. In the end, they're not worth the aggravation, especially if you're gonna be using it as a daily thing.
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honey the codewitch wrote:
if it's not 512GB i don't really care
I think you will care if you write to it and start encountering otherwise inexplicable failures, even if you stay well below the claimed capacity. Years ago my employer got 64GB USB sticks (when those were still a new thing) for very cheap, for a trade show, and we loaded them up with marketing material. And while we only needed just a few hundreds of MBs (if that), some couldn't be written to or read back at all. If it's too good to be true, that's usually the sort of device you're dealing with. In the end, they're not worth the aggravation, especially if you're gonna be using it as a daily thing.
dandy72 wrote:
If it's too good to be true, that's usually the sort of device you're dealing with. In the end, they're not worth the aggravation, especially if you're gonna be using it as a daily thing.
I mean, I agree with that. And I appreciate the heads up. But here's the thing: A) I didn't know that $35 was especially cheap. I haven't kept up on SD prices. I literally just bought the first one I found @ 512GB on amazon. I didn't care. Now that I know they should be $80 I'll bear that in mind. B) That machine will never not be wipeable. In fact, the first thing I was going to do was copy the SD that ships with it - the one with raspian on it, to my PC. Then I am going to boot up, install VS code, clang, gcc, git, platform IO and all that. Make my dev env.. Finally, I will image a new copy of that disk to my PC. That will become my gold copy. If anything blows up, I just start over. All my source gets checked in routinely to github. It's not really an issue. C) I'm not just going to throw away $35 without seeing if it was money well spent or not That's why I say I don't care. The 512GB was me going "how can i make sure i'll never have to waste time worrying about space on this thing?"
Real programmers use butterflies
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dandy72 wrote:
If it's too good to be true, that's usually the sort of device you're dealing with. In the end, they're not worth the aggravation, especially if you're gonna be using it as a daily thing.
I mean, I agree with that. And I appreciate the heads up. But here's the thing: A) I didn't know that $35 was especially cheap. I haven't kept up on SD prices. I literally just bought the first one I found @ 512GB on amazon. I didn't care. Now that I know they should be $80 I'll bear that in mind. B) That machine will never not be wipeable. In fact, the first thing I was going to do was copy the SD that ships with it - the one with raspian on it, to my PC. Then I am going to boot up, install VS code, clang, gcc, git, platform IO and all that. Make my dev env.. Finally, I will image a new copy of that disk to my PC. That will become my gold copy. If anything blows up, I just start over. All my source gets checked in routinely to github. It's not really an issue. C) I'm not just going to throw away $35 without seeing if it was money well spent or not That's why I say I don't care. The 512GB was me going "how can i make sure i'll never have to waste time worrying about space on this thing?"
Real programmers use butterflies
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I finally broke down and bought a raspberry pi. I feel like it's cheating since it's a small computer, not an IoT device as such. However, it runs linux and will run GCC so I can use it to test out my driver code directly without long dev cycles i usually deal with uploading my binaries via serial. I bought a 512GB microsd card for storage I'm hooking it into my primary display and I have a keyboard i can use with it. I also have a 5" hdmi touch display i bought for my logic probe/scope, but i can use it for this too. Any other "must have" gear I should get with it?
Real programmers use butterflies
Given your hardware constraints, would a limited set of named colors be useful [^] Off-topic: It might interest you to explore Pantone (subtractive) colors: [^], [^]
«One day it will have to be officially admitted that what we have christened reality is an even greater illusion than the world of dreams.» Salvador Dali
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Given your hardware constraints, would a limited set of named colors be useful [^] Off-topic: It might interest you to explore Pantone (subtractive) colors: [^], [^]
«One day it will have to be officially admitted that what we have christened reality is an even greater illusion than the world of dreams.» Salvador Dali
The way C++ works none of the colors are instantiated unless you use them. Strings ... that's not *as* true, so I'm wary of strings. Basically, until I can find a use case for having an actual string in the code for a color name, I'm going to avoid it. All of the X11 colors I declared are good because like I said, they are only instantiated in the final binary if they are used, and even then they are represented by a single machine word. The subtractive color models like CYMk? I can support those, I just have nothing that uses them yet so I haven't created a pixel with those channels. This library will support pretty much any color model, with the possible exception of color models that are dependent on spatial positioning.
Real programmers use butterflies
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Thanks for all that information. I got a starter kit that includes a case and a couple of fans. I have a powered USB hub. I'd bet you good money your USB power problems were from trying drive your pi off of the PC's USB power directly. I'll give that a go for a little while and see how it goes. I'd have loved to know about your issues with SSD before I went and bought half a terabyte of it. :laugh: I'll be hooking it into my main monitor and using a full size keyboard with it since it is being used as a development machine for reasons - that's why I bought it. It has 8GB. I'll back my SD up after every session. And in any case I use source control. Since this machine is purely to speed up my development of drivers for i2c and spi devices all I'm doing with it is coding.
Real programmers use butterflies
honey the codewitch wrote:
I'd bet you good money your USB power problems were from trying drive your pi off of the PC's USB power directly.
I was actually talking about the physical connector, but before I switched over to POE, all of my Pi's were powered from a wall-wart.
honey the codewitch wrote:
I'd have loved to know about your issues with SSD before I went and bought half a terabyte of it.
The SD card unreliability is kinda widely known, especially among Pi owners. BTW, ALWAYS do a controlled shutdown/power-off. Never just shut it off, especially if you're using a SD card to boot from. One more thing - if you do change to booting from a thumb drive, it's a good idea to keep an unformatted 1gb (or smaller) SD card in the SD slot. It speeds booting from the thmb drive, and keeps the Pi from periodically polling the SD slot to see if a card is in it.
".45 ACP - because shooting twice is just silly" - JSOP, 2010
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You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
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When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013 -
honey the codewitch wrote:
I'd bet you good money your USB power problems were from trying drive your pi off of the PC's USB power directly.
I was actually talking about the physical connector, but before I switched over to POE, all of my Pi's were powered from a wall-wart.
honey the codewitch wrote:
I'd have loved to know about your issues with SSD before I went and bought half a terabyte of it.
The SD card unreliability is kinda widely known, especially among Pi owners. BTW, ALWAYS do a controlled shutdown/power-off. Never just shut it off, especially if you're using a SD card to boot from. One more thing - if you do change to booting from a thumb drive, it's a good idea to keep an unformatted 1gb (or smaller) SD card in the SD slot. It speeds booting from the thmb drive, and keeps the Pi from periodically polling the SD slot to see if a card is in it.
".45 ACP - because shooting twice is just silly" - JSOP, 2010
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You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
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When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013Thanks. The SD i ordered was sold out anyway, So i didn't end up getting it. I'm glad. I'll end up ordering a thumb drive.
Real programmers use butterflies
