"sorry i couldn't patch your pants, honey. my sweing-machines graphic driver kept crashing so i had to fix it. and didn't have the time". i'll take sentences you'd hever hear for 100.
A lot of the noise you were seeing on the scope is due to the long probe ground wires - for measuring this sort of stuff you really have to use a very short (
Hi Mike, you can see that short ground in some of the shots. I think I was using the long terrible ground lead mostly for measuring the grounds that were already terrible for other reasons too :D
Bought an arduino and a bunch of electronic components after seeing your 'four buttons' vid, tackling my first electronics project! Been loving your videos
I can commiserate. More than once I've been sure my problem is hardware - transient spikes messing up the uC or something, added random capacitors and filters... no dice, and then eventually realize it's software. Most recently a math error causing writes out of bounds for what should have been a ring buffer. Related the Parallax uCs, I really liked the step by step debugger support that the SX28 had. (formerly Ubicom/Scenix Semiconductor before Parallax bought it)
What were you using to salvage those caps off the disk drives (around 8:30)? Was it just flux paste and a heat gun? Used to use desoldering tweezers for salvaging SMD components, but I don't have them at my new job, so I've been doing it the dumb, destructive, ineffective way with a normal-tipped soldering iron. This seems much more effective (and obvious).
I think it is the atten 850b hot air station. There are tons that look very similar: Hakko 850b, quick 850b/a, “ random brand” 850a/b. I just got the new atten ST-862D. It is super solid. Another good option is SUGON 8610DX. There are plenty of hot air stations pick one in your price range that meets your needs. Bulk heat is easy so cheap ones will work. Reballing an ic and need everything to survive get a nicer one.
Great fun spending hour debugging hardware only to find out it's a software issue, if only it was easier to get some kind of feedback from the microcontrollers but then where would be the fun in that?
Hey! This is a great idea! I would like to do something similar. May I kindly ask to help me out with some details like what type of motor have you used, and what power supply? What was the motor controller?
What is the vibrating tool you use to scratch away at the solder mask? Also; seems like you should include a watchdog timer in case of crashes -- won't help with the cause, but at least will help prevent it running away on you.
The vibrating tool is just an x-acto knife sped up a lot in post :) A watchdog would have been great but I didn't have one available, and didn't get around to building a standalone watchdog.
@@scanlime haha, ok. I might try gluing an xacto blade to an electric toothbrush one day -- been trying to find a good automatic way of scratching away at soldermask.
@@scanlime Yes, I too was thinking about a real hardware watchdog, industrial-style, wired to cut off the motor ... when thinking about future scanlime's fingers:) Anyway, great job!
Wait, did you totally just harvest smd (tantalum) caps from a dead hard disk? That quote about dead hard disk strikes so close to home... Pretty cool project, was neat to go back and read your original blog posts about it too
This is like a murder mystery story where you are both the detective, the murderer, and the victim.
"sorry i couldn't patch your pants, honey. my sweing-machines graphic driver kept crashing so i had to fix it. and didn't have the time". i'll take sentences you'd hever hear for 100.
THE KIRBY BASED SPEED INDICATOR! :0
"Ugh, I hate this thing already"
Haha yep, me re-visiting every old project.
A lot of the noise you were seeing on the scope is due to the long probe ground wires - for measuring this sort of stuff you really have to use a very short (
Hi Mike, you can see that short ground in some of the shots. I think I was using the long terrible ground lead mostly for measuring the grounds that were already terrible for other reasons too :D
Bought an arduino and a bunch of electronic components after seeing your 'four buttons' vid, tackling my first electronics project! Been loving your videos
One of the best videos to sum up embedded debugging. Need to look everywhere until you find the basic error that throws everything out of whack.
Projects are cool and all but I'm just here for the cat.
Really great video ... debugging and fixing ... exploring and keeping high spirit !
The Kirby based speed controller is amazing!!
I feel blessed to have discovered your channel just as you started uploading again; fantastic stuff!
I don't know who you are or exactly why TH-cam chose to show me your content on this exact day at this exact moment... but you're fucking cool.
I can commiserate. More than once I've been sure my problem is hardware - transient spikes messing up the uC or something, added random capacitors and filters... no dice, and then eventually realize it's software. Most recently a math error causing writes out of bounds for what should have been a ring buffer.
Related the Parallax uCs, I really liked the step by step debugger support that the SX28 had. (formerly Ubicom/Scenix Semiconductor before Parallax bought it)
I've seen what you have done with the Ariane 5, -last- that summer... :)
Another great video! It was fun watching the streams back when you solved this but even better seeing the highlights. Love this content
Excellent video, as always. I'm surprised the problem was not with a long flat cable running next to the motor. It should be picking a lot of noise.
bodgetastic, I didn't know there was an opposite of Wildlerising :)
Ni si quiera lo había visto y ya le había dado like. Esto es increíble... 😍
amazing work! so impressive!
What were you using to salvage those caps off the disk drives (around 8:30)? Was it just flux paste and a heat gun? Used to use desoldering tweezers for salvaging SMD components, but I don't have them at my new job, so I've been doing it the dumb, destructive, ineffective way with a normal-tipped soldering iron. This seems much more effective (and obvious).
I think it is the atten 850b hot air station. There are tons that look very similar: Hakko 850b, quick 850b/a, “ random brand” 850a/b. I just got the new atten ST-862D. It is super solid. Another good option is SUGON 8610DX. There are plenty of hot air stations pick one in your price range that meets your needs. Bulk heat is easy so cheap ones will work. Reballing an ic and need everything to survive get a nicer one.
I don't wish to alarm you but there's a small tiger in your workspace
Great fun spending hour debugging hardware only to find out it's a software issue, if only it was easier to get some kind of feedback from the microcontrollers but then where would be the fun in that?
Nice! i just watched the original video this is great!
You betcha it's gotta have a Kirby-based speed indicator
Hey! This is a great idea! I would like to do something similar. May I kindly ask to help me out with some details like what type of motor have you used, and what power supply? What was the motor controller?
Aww no cool mysterious music :p
What is the vibrating tool you use to scratch away at the solder mask?
Also; seems like you should include a watchdog timer in case of crashes -- won't help with the cause, but at least will help prevent it running away on you.
The vibrating tool is just an x-acto knife sped up a lot in post :) A watchdog would have been great but I didn't have one available, and didn't get around to building a standalone watchdog.
@@scanlime haha, ok. I might try gluing an xacto blade to an electric toothbrush one day -- been trying to find a good automatic way of scratching away at soldermask.
@@scanlime Yes, I too was thinking about a real hardware watchdog, industrial-style, wired to cut off the motor ... when thinking about future scanlime's fingers:)
Anyway, great job!
Decoupling capacitors for days.
You should probably get into quantum computers. Cuz superconductors like when it's COOL
What is that wonderful soldermask-scraping tool?
just an x-acto knife, but sped up :)
@@scanlime 😂
Wait, did you totally just harvest smd (tantalum) caps from a dead hard disk? That quote about dead hard disk strikes so close to home...
Pretty cool project, was neat to go back and read your original blog posts about it too
They were ceramic caps but yep. It was the first place i thought to get ~12V high value SMT caps, and i didn't have any fresh ones handy.
What is the vibration tool used to removed the soldermask. Bespoke? It's used @ 11min 5 sec.
That's an exacto knife, and the video is sped up like 10x there.
@@reportingsjr Bummer, i had hoped is was some bespoke tool Micah had made. Maybe a project for a LRA and hardened needle/probe, DRV2605L
lol
very fun video ^^