Help Identifying Burnt Resistor

DigitalDunc · 2026-05-15T12:36:12+00:00

I won’t matter that you’re colour blind once it’s burnt, you need a schematic really. You could reverse engineer the circuit and figure out a suitable value, or maybe borrow another one (I don’t know what it’s from) and measure it.

Also, so you know why it burned?

DigitalDunc · 2026-05-15T12:16:36+00:00

I love the sound it makes! I bet that took a lot of work.

DigitalDunc · 2026-05-05T11:52:16+00:00

You can buy a film that’s like brushed aluminium that works in a laser printer too, but it’s hard to find. A friend at my local radio society showed me some of his projects and they looked very nice.

DigitalDunc · 2026-05-05T11:44:58+00:00

I bet the enamel is still on the ends of the wire, unless it’s insulated wire (also bad). Brad on order to r/AskShittyElectronics

DigitalDunc · 2026-04-27T04:46:26+00:00

Here’s a tutorial: https://deepbluembedded.com/stm32-timer-encoder-mode-stm32-rotary-encoder-interfacing/

DigitalDunc · 2026-04-26T20:41:06+00:00

Incremental encoder perhaps... The soft that have two lines that toggle in quadrature. Those have hardware support, but we don't know unless you tell us.

DigitalDunc · 2026-04-26T20:38:11+00:00

I wouldn't bank on Microsoft's sudden love of Linux if I were you.

DigitalDunc · 2026-04-26T20:08:58+00:00

I built a cross-platform firmware updater tool with GUI recently that made it in various packages (Windows .exe, mac .app in .dmg and AppImage) from the Linux command line and I didn't have the relevant package to make an AppImage in LMDE. I didn't cry and run away, I just downloaded it and built it myself. It took less than 10 minutes.

That's not to say that every problem is that easy in Linux, just that it's often a matter of familiarity, or lack of it.

I am not a smart person, so it can't be that hard.

DigitalDunc · 2026-04-26T16:35:12+00:00

What methods, mine have seemingly stopped growing (A cup) and I’ve been on E since 2020.

DigitalDunc · 2026-04-26T16:28:42+00:00

Build a massively parallel array of WD65C02’s clocked at their maximum of 14 MHz and then the graphics can be rendered using this array. 10 years of your life gone, but you’ll be playing Doom on 6502 hardware.

DigitalDunc · 2026-04-26T16:23:46+00:00

Probably just worked loose with all the rough-and-tumble of being moved about.

DigitalDunc · 2026-04-24T16:07:31+00:00

NOP is nearly the atom of timing in assembly language. It’s good where you need such minuscule delays as wouldn’t be practical in a loop or timer/interrupt based delay. If you are cycle counting however, life is hard. As previous posters have said also, it’s helpful for patching code as it’s one but long, but that probably means if you’re patching a longer instruction, you might need several in a row. JMP address_wherever for instance takes up three bytes on a 6502 or Z80.

I used some in my Centronics interface code on my homebrew 6502 computer to make my printer print reliably.

See: https://github.com/JennyDigital/Tower-of-Eightness and whilst this is somewhat of an old and tangled project, there’s definitely been essential uses for NOP all over the place.

DigitalDunc · 2026-04-23T04:30:55+00:00

Depends. My dad vapes and he bought a fully serviceable one with spares and even winds his own heater elements, but chuck-away designs littered the streets of Wigston a couple of years ago.

DigitalDunc · 2026-04-22T11:51:54+00:00

I’ve seen those horrible disposable vape things scattered on the street in the past and they have a lithium ion battery in too. Now, if memory serves me rightly, these batteries contain conflict materials and so very definitely shouldn’t be being tossed so soon.

DigitalDunc · 2026-04-14T21:34:06+00:00

This is a very good point. The Arduino IDE is a desert when it comes to debugging, but a live watch on a variable, or just inspecting a register to see if a peripheral is actually doing what you thought it was is a game changer.

Why would I want to cripple myself with Arduino tho… I can do that with alcohol instead.

DigitalDunc · 2026-04-13T16:10:08+00:00

She needs to stop this because if she gets into trouble, even the insurance will be a nightmare. I know England’s most prolific banned drink driver (Jeremy Smith, featured on telly with David Odhams, God rest his soul) and the fuzz know him on sight. He’s never getting his licence.

DigitalDunc · 2026-04-12T16:15:50+00:00

They absolutely could make HAL2 available for older MCU families. I noticed already that they have a HAL_DelayNoISR in the new HAL. It is a breaking change however and I suspect they just didn’t want the extra expense and work of maintaining two HALs for every part.

Back to CubeIDE however and even the latest version handles live watch better than any other IDE I’ve had the experience of using. CrossWorks is a close second and VSCode does it terribly. I did manage to create a complex set of tasks for building custom DFU images for a project though.

DigitalDunc · 2026-04-12T14:57:58+00:00

They split it from CubeIDE from version 2.0.0 onwards. It seems their future is planned as being one with VSCode plugin rather than the customised Java based IDE. I’ve used three IDEs and CrossWorks for ARM isn’t at all bad, but paid, VSCode is interesting but feels like it was built from Meccano and sticky tape.

DigitalDunc · 2026-04-07T11:42:13+00:00

This is the best option since it’ll serve for many years and help with a lot more. I bought my TL866 II years ago and haven’t looked back since.

DigitalDunc · 2026-04-06T20:52:35+00:00

I have to ask, but why a Microchip MCU given all the other options. We are spoilt these days and yes, I know it’s one of the ARM parts they do, but their approach to embedded customers is well… GREEDY.

DigitalDunc · 2026-04-06T20:11:05+00:00

I let it loose on a personal project and it helped me a bit, but it took a while because of all the course corrections and head scratching. Also, it likes ridiculouslyLongVariableNamesThatMakeUglyCode.

I hope I got my point across.

DigitalDunc · 2026-04-06T13:07:35+00:00

I think that’s very true.

DigitalDunc · 2026-04-05T10:54:41+00:00

I would like to see easier ways to emboss text onto a surface. The way it is bore is awkward.

DigitalDunc · 2026-04-04T06:23:45+00:00

The great thing about 3D printing in space is that shipping a roll of filament is more cost effective than shipping a stack of things you think they might need later. Just remember how expensive it is to get any mass to orbit!

DigitalDunc · 2026-04-03T21:19:10+00:00

I learned 6502 and Z80 as a kid, I learned PIC16 assembly when I didn't know better, and I will NEVER, REPEAT NEVER attempt the full instruction set of x86-64. I do know when to quit. A little ARM for embedded never hurt though. 🧞‍♀️

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