5,833 karma · joined October 29, 2009
I do custom electronics, robotics, and embedded software development - I specialize in quickly turning ideas into prototypes. I've built custom automation equipment for chemistry labs, sensors that are in use in household/utility applications, control circuitry for construction equipment, 3d printing electronics, data acquisition equipment. No project too small. Few projects too large. Deep discounts for open source hardware work.
I would also be happy to come over (anywhere in Europe) and teach any of the above skills to a small group of interested people. I've taught courses in electronic assembly (SMD), 3d printing (building/using printers, iterative 3d model design using programming) and robot design and construction. I've taught courses at several universities, hackspaces, and conferences.
I do electronics. Normally I help companies turn their idea into a prototype but at the moment all I seem to be doing is putting out fires related to the current part availability crisis. If you're affected by availability problems and want help finding replacement parts or re-engineering your product for manufacturability, I'm happy to help. Don't bother contacting me if you work in or for the car industry.
For more background on the current crisis, see my analysis here https://news.ycombinator.com/item?id=26932382
contact - my username on Freenode irc or my username at 0xfb.com
I do electronics. Normally I help companies turn their idea into a prototype but at the moment all I seem to be doing is putting out fires related to the current part availability crisis. If you're affected by availability problems and want help finding replacement parts or re-engineering your product for manufacturability, I'm happy to help. Don't bother contacting me if you work in or for the car industry.
For more background on the current crisis, see my analysis here https://news.ycombinator.com/item?id=26932382
contact - my username on Freenode irc or my username at 0xfb.com
For some reason in early 2020 all the car industry execs were convinced that people would buy dramatically fewer cars in 2020, due to pandemic crashing demand. Because they have a religious aversion to holding any stock they decided to shift the risk over to their suppliers, fucking said suppliers over, as the car industry normally does when they expect demand shifts. The thing that made this particular time special as opposed to business as usual is that the car execs all got it wrong, because people bought way more cars due to pandemic rather than less, due to moving out of cities and avoiding public transit. So they fucked over their suppliers a second time by demanding all those orders back.
Now, suppose you're a supplier of some sort of motor driver or power conversion chip (PMIC) in early 2020. You run 200 wafers per month through a fab running some early 2000s process. Half your yearly revenue is a customized part for a particular auto vendor. That vendor calls you up and tells you that they will not be paying you for any parts this year, and you can figure out what to do with them. You can't afford to run your production at half the revenue, so you're screwed. You call up your fab and ask if you can get out of that contract and pay a penalty for doing so, and you reduce your fab order to 100 wafers per month, so you can at least serve your other customers. The fab is annoyed but they put out an announcement that a slot is free, and another vendor making a PMIC for computer motherboards buys it, because they can use the extra capacity and expect increased demand for computers. So far so normal. One vendor screwed, but they'll manage, one fab slightly annoyed that they had to reduce throughput a tiny bit while they find a new buyer.
Then a few months later the car manufacturer calls you again and asks for their orders back, and more on top. You tell them to fuck off, because you can no longer manufacture it this year. They tell you they will pay literally anything because their production lines can't run without it because (for religious reasons) they have zero inventory buffers. So what do you do? You call up your fab and they say they can't help you, that slot is already gone. So you ask them to change which mask they use for the wafers you already have reserved, and instead of making your usual non-automotive products, you only make the customized chip for the automotive market. And then, because they screwed you over so badly, and you already lost lots of money and had to lay off staff due to the carmaker, you charge them 6x to 8x the price. All your other customers are now screwed, but you still come out barely ahead. Now, of course the customer not only asked for their old orders back, but more. So you call up all the other customers of the fab you use and ask them if they're willing to trade their fab slots for money. Some do, causing a shortage of whatever they make as well. Repeat this same story for literally every chipmaker that makes anything used by a car. This was the situation in January 2021. Then, several major fabs were destroyed (several in Texas, when the big freeze killed the air pumps keeping the cleanrooms sterile, and the water pipes in the walls of the buildings burst and contaminated other facilities, and one in Japan due to a fire) making the already bad problem worse. So there are several mechanisms that make part availability poor here:
1. The part you want is used in cars. Car manufacturers have locked in the following year or so of production, and "any amount extra you can make in that time" for a multiple of the normal price. Either you can't get the parts at all or you'll be paying a massive premium.
2. The part you want is not used in cars, but is made by someone who makes other parts on the same process that are used in cars. Your part has been deprioritized and will not be manufactured for months. Meanwhile stock runs out and those who hold any stock massively raise prices.
3. The part you want is not used in cars, and the manufacturer doesn't supply the car industry, but uses a process used by someone who does. Car IC suppliers have bought out their fab slots, so the part will not be manufactured for months.
4. The part you want is not used in cars, and doesn't share a process with parts that are. However, it's on the BOM of a popular product that uses such parts, and the manufacturer has seen what the market looks like and is stocking up for months ahead. Distributor inventory is therefore zero and new stock gets snapped up as soon as it shows up because a single missing part means you can't produce your product.
So here we are. Shameless plug - email me if you are screwed by this and need help getting your product re-engineered to the new reality. There's a handful of manufacturers, usually obscure companies in mainland China that only really sell to the internal market, that are much less affected. Some have drop-in replacement parts for things that are out of stock, others have functionally similar parts that can be used with minor design adaptation. I've been doing that kind of redesign work for customers this whole year. Don't email me if you work in/for the car industry. You guys poisoned the well for all of us so deal with it yourselves.
email in my profile.
Now, suppose you're a supplier of some sort of motor driver or power conversion chip (PMIC) in early 2020. You run 200 wafers per month through a fab running some early 2000s process. Half your yearly revenue is a customized part for a particular auto vendor. That vendor calls you up and tells you that they will not be paying you for any parts this year, and you can figure out what to do with them. You can't afford to run your production at half the revenue, so you're screwed. You call up your fab and ask if you can get out of that contract and pay a penalty for doing so, and you reduce your fab order to 100 wafers per month, so you can at least serve your other customers. The fab is annoyed but they put out an announcement that a slot is free, and another vendor making a PMIC for computer motherboards buys it, because they can use the extra capacity and expect increased demand for computers. So far so normal. One vendor screwed, but they'll manage, one fab slightly annoyed that they had to reduce throughput a tiny bit while they find a new buyer.
Then a few months later the car manufacturer calls you again and asks for their orders back, and more on top. You tell them to fuck off, because you can no longer manufacture it this year. They tell you they will pay literally anything because their production lines can't run without it because (for religious reasons) they have zero inventory buffers. So what do you do? You call up your fab and they say they can't help you, that slot is already gone. So you ask them to change which mask they use for the wafers you already have reserved, and instead of making your usual non-automotive products, you only make the customized chip for the automotive market. And then, because they screwed you over so badly, and you already lost lots of money and had to lay off staff due to the carmaker, you charge them 6x to 8x the price. All your other customers are now screwed, but you still come out barely ahead. Now, of course the customer not only asked for their old orders back, but more. So you call up all the other customers of the fab you use and ask them if they're willing to trade their fab slots for money. Some do, causing a shortage of whatever they make as well. Repeat this same story for literally every chipmaker that makes anything used by a car. This was the situation in January 2021. Then, several major fabs were destroyed (several in Texas, when the big freeze killed the air pumps keeping the cleanrooms sterile, and the water pipes in the walls of the buildings burst and contaminated other facilities, and one in Japan due to a fire) making the already bad problem worse. So there are several mechanisms that make part availability poor here:
1. The part you want is used in cars. Car manufacturers have locked in the following year or so of production, and "any amount extra you can make in that time" for a multiple of the normal price. Either you can't get the parts at all or you'll be paying a massive premium.
2. The part you want is not used in cars, but is made by someone who makes other parts on the same process that are used in cars. Your part has been deprioritized and will not be manufactured for months. Meanwhile stock runs out and those who hold any stock massively raise prices.
3. The part you want is not used in cars, and the manufacturer doesn't supply the car industry, but uses a process used by someone who does. Car IC suppliers have bought out their fab slots, so the part will not be manufactured for months.
4. The part you want is not used in cars, and doesn't share a process with parts that are. However, it's on the BOM of a popular product that uses such parts, and the manufacturer has seen what the market looks like and is stocking up for months ahead. Distributor inventory is therefore zero and new stock gets snapped up as soon as it shows up because a single missing part means you can't produce your product.
and this is how a conference call among car industry exec buddies that have convinced each other that for some reason people will buy fewer cars in a pandemic managed to destroy the entire electronics market for (hopefully no more than) a year or so
ST can and is making microcontrollers. It's just that they've sold their production for a year ahead, before it's even been manufactured. Car companies fucked everyone over by flipping a large volume of orders back and forth causing bullwhip effect on the whole industry, and lots of knock-on effects in other industries who suddenly got told (occasionally too late) that they need to plan their inventory a year ahead because they can't get anything at short notice anymore. Car companies vehicle production volume is tens of millions, but each vehicle has thousands to tens of thousands of ICs. The six months you are mentioning are not the capacity period, they are the lead times involved.
I don't want to repeat the whole story but I wrote a comment about this on another thread. See https://news.ycombinator.com/item?id=26659709
I use wx for my own stuff and also use a lot of wx-based applications. Wx is quirky and has some bugs but it's not going to go away or have a massive breaking change without warning. Its biggest weakness is the slow release schedule which leaves users waiting for a long time to access things that are critical on changing platforms (macos is a massive pain to support as the underlying system changes all the damn time). My opinion of it can be summarized as "the worst, except for all the others" so I keep using it.
I keep considering Qt whenever I start a new project and I'm still scared to use it. It's controlled by a company that is in really bad shape financially and has a history of attempting stupid things for short-term profit and screwing over customers. It's reasonable if you can manage with either just the LGPL components or if your entire project is GPL, but if not their license terms are really terrible and get worse and worse over time. They keep making changes that fuck over their paying customers. I don't feel good about using this at the moment. The KDE people have thankfully got that company by the balls with a watertight contract, and I totally trust the KDE people, but there's still plenty of damage the company can do, and every sign they will. It's really unfortunate because Qt is otherwise an excellent platform.
Multiplatform gtk is a pain. There are a few projects that successfully pull it off (Horizon EDA is a notable example) but I don't think I could manage it myself.
If you're doing a new thing you might want to consider one of the many imgui implementations (as you seem to be thinking in that direction already).
The suppliers didn't mothball the facilities (which are not at all antiquated, and are massively in use for other things), they just sold that capacity to less capricious customers.
Write down and publish as many things as possible to enable prior art searches. If an important case affects a field you've been working on for decades, actively help victims find prior art.
Consistently vote against IP maximalists wherever you have an opportunity. Don't have relationships with IP maximalists.
Remind the general public about how bad and stupid patents are when you have the opportunity.
Don't buy products that advertise using "patented technology" or "patent pending". If you have no choice, buy used.
If you are in control of a company's patent strategy, file lots of provisional patents then abandon them, so they show up in the database when patent examiners search for prior art.
Financially support victims of patent attacks and help them get as many patents invalidated as possible.