a thread about janitoring individual bits and using oscilloscopes and stuff

The Something Awful Forums > Discussion > Serious Hardware/Software Crap > YOSPOS > a thread about janitoring individual bits and using oscilloscopes and stuff

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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just wanted to pop in and remind everyone of the obvious and unquestionable truth of avr supremacy

# ¿ Nov 25, 2014 19:40

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# ¿ Apr 29, 2024 17:50

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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Tin Gang posted:

please go into detail because I was raised on PICs and know nothing else

as a hobbyist, avr just has a better toolset. winavr is a great c compiler and toolchain, and that's what i started on. also, because avrs are what's inside arduinos, there are a ton of code examples and people selling cheap avr programmers, and if you want you can even get the arduino ide to talk to a bare avr if you have a programmer. and you can get a nice isp programmer for avrs on the cheap, or if you really want to cheap out you can make one out of a parallel port and a few resistors

ive never done pic stuff, so no idea how it compares, i just like avrs because it's what i know

# ¿ Nov 25, 2014 21:06

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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Werthog 95 posted:

lol when hobbyists roll in and tell you "avr supremacy" just because that's what arduinos use

ug, loving casuals

idk man it was cheap and easy to get into even before arduinos, beg for free chips i mean 'engineering samples' from manufactures and rig the rest up from old parts a packrat cj already has

# ¿ Nov 26, 2014 05:10

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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im a dumb hobbyist but microcontroller poo poo is fun as heck

i wired up a 4 digit 7 segment display and the first iteration i kept having some of the segments were dimmer than the others and when it finally clicked what i was doing wrong and how to resolve it i was all like :catdrugs:

just having to think about microseconds of delay and poo poo like that is a really fun exercise even if 'display 4 digits at a time' is a solved problem

# ¿ Nov 28, 2014 03:11

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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Werthog 95 posted:

hey so here's a hobbyist's question for the actual experts itt

i was gonna make a usb adapter for my ADB keyboard
()
because the protocol is super simple

but then i found somebody else had already made one, all you had to do was stick an s-video port on a teensy and load his firmware https://geekhack.org/index.php?topic=14290.0

the problem is: it sucks

so if i wanted to make my own, what's the hip good microcontroller for making usb adapters (that doesn't require me to use TI's lovely loving dev environment)

there are a bunch of avr / arduino tutorials on how to do have the chip be a usb keyboard, so you could start there and figure out the adb past and how to pass everything between on your own

# ¿ Dec 1, 2014 19:14

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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Werthog 95 posted:

i guess i could try to debug it and see exactly why it stops working when it does, and try to fix it, but other people on that forum who already know what they're doing have tried and the latest firmware still freezes up a few times a day

rig up a second avr as a watchdog and reset it when it dies?

# ¿ Dec 1, 2014 20:18

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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why do these nails have strange curly ridges on the sides and plus signs on the top? eh w/e *happily hammers away*

# ¿ Dec 1, 2014 20:19

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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Werthog 95 posted:

hey so here's a hobbyist's question for the actual experts itt

i was gonna make a usb adapter for my ADB keyboard
()
because the protocol is super simple

but then i found somebody else had already made one, all you had to do was stick an s-video port on a teensy and load his firmware https://geekhack.org/index.php?topic=14290.0

the problem is: it sucks

so if i wanted to make my own, what's the hip good microcontroller for making usb adapters (that doesn't require me to use TI's lovely loving dev environment)

alternate plan: open the keyboard, yank out the old guts and rig your mcu straight to the keys?

# ¿ Dec 1, 2014 23:26

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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i know the real EEs itt don't care for avrs but it's all i know and i am kind curious what's out there, so what are the cons of avr or the pros of other mcu families?

# ¿ Dec 5, 2014 06:32

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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Tin Gang posted:

this thing's been sitting around forever and I finally tested it. it works fine

there should be some use for it

give it to me please and thank you

# ¿ Dec 22, 2014 20:38

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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Apocadall posted:

i'd like to get a hobby oscilloscope for learning some things on my own outside of school. i see things like the dso chinese things that have bad reviews but seem like a neat thing, or buy a used behemoth on ebay

Jonny 290 posted:

yeah i've been i the same sitch for a while. i need to shut STFU and eat ramen for a month and buy one.

similar. kindly report back because i really want to buy a reliable and cheap scope and love stories

# ¿ Dec 24, 2014 20:44

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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Olivil posted:

yo to all my yosbros,

theres a chinese seller on ebay selling Fluke 17B+ for $13 shipped right now. it's a typo cause he usually sells them for $121.99. I don't know if its a scam but mine is "shipped" without a tracking number. even if he doesnt ship and he doesnt delliver i guess itll be pretty easy to get a refund from ebay/paypal so its pretty risk free to get a p good multimeter

all this meter is missing is true rms, otherwise its a very good, and very safe, multimeter for its usual price range (~$100)
the 17B+ even has backlight as opposed to the 17B

im in on this scam, see u in hong kong prison m8

# ¿ Jan 1, 2015 02:12

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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my current multi is the sparkfun knock off fluke that they got sued for

if this works out i will have paid less for the real thing, :laffo:

# ¿ Jan 1, 2015 03:10

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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not at this distance your honor

# ¿ Jan 1, 2015 20:34

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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Jonny 290 posted:

Old White Dudes:

Stop

That Is All.

# ¿ Jan 6, 2015 04:34

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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Olivil posted:

yo to all my yosbros,

theres a chinese seller on ebay selling Fluke 17B+ for $13 shipped right now. it's a typo cause he usually sells them for $121.99. I don't know if its a scam but mine is "shipped" without a tracking number. even if he doesnt ship and he doesnt delliver i guess itll be pretty easy to get a refund from ebay/paypal so its pretty risk free to get a p good multimeter

all this meter is missing is true rms, otherwise its a very good, and very safe, multimeter for its usual price range (~$100)
the 17B+ even has backlight as opposed to the 17B

frukegate update:

ebay gave me my money back

they didn't give me a cheap fluke tho

they even did an expedited refund 'in light of the seller's recent activity'

# ¿ Jan 19, 2015 21:49

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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DNova posted:

What? I got my money back a couple of hours after the account was deleted.

i just opened the claim today, ebay refunded the money minutes after i submitted it

was still holding out hope

# ¿ Jan 19, 2015 22:49

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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Mr Dog posted:

I'm doing firmware for a lil battery powered wireless sensor

it has a 1.5F supercapacitor on it for some reason

makes power cycling more of a pain than it needs to be

sounds like it's actually supercapacitor powered now doesn't it

# ¿ Feb 10, 2015 19:15

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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isn't that the kinda thing where you just throw a cap in front of it and it's fine?

# ¿ Feb 21, 2015 13:09

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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i like chisel tip, i feel like they heat better than point tips. it's really personal pref tho

# ¿ Mar 1, 2015 15:00

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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Star War Sex Parrot posted:

I think I set my fuses wrong on my ATMega32 while trying to get it working with an external crystal. I'm not sure if it's expecting an external clock signal or what but it doesn't work anymore. Gonna try either a function generator or another ATMega to generate a clock and see if that gets it back to life long enough to program the fuses again

Lesson learned

What programmer are you using? I think it uses the external clock from the programmer regardless of the fuse settings. If not, high voltage programming to force it to listen. I forget, it's been a while since I messed with that stuff.

# ¿ Apr 7, 2015 22:49

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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Fanged Lawn Wormy posted:

but like, is there a book or something for embedded systems out there? what will change for me?

Becoming an embedded developer is a wondrous time in a young man's life. You may wake up one day to find hair where there was no hair before (neck)

# ¿ Apr 8, 2015 00:53

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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Star War Sex Parrot posted:

keeping this thread alive

What env are you using? Atmel studio or something with WinAVR?

# ¿ Apr 18, 2015 14:04

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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Star War Sex Parrot posted:

Atmel studio, though I was looking at using Crosspack so I don't have to rely on a windows VM.

Why not just run it natively in Windows? Is the VM just an easy way to keep it separated?

# ¿ Apr 21, 2015 01:14

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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Bloody posted:

it sounds like your primary operating system may be a piece of poo poo

My thoughts exactly

# ¿ Apr 21, 2015 12:09

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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Star War Sex Parrot posted:

current school status:

avrs are fun lil chips

# ¿ May 16, 2015 03:51

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# ¿ Apr 29, 2024 17:50

maniacdevnull: Apr 18, 2007; FOUR CUBIC FRAMES
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Bloody posted:

their solutions will still be garbage but so's your's and at least it's garbage you won't have to spend time creating

Don't post excerpts from my collection of lifehacks

# ¿ Jul 28, 2015 17:14

The Something Awful Forums > Discussion > Serious Hardware/Software Crap > YOSPOS > a thread about janitoring individual bits and using oscilloscopes and stuff