The ESP32 (with Bluetooth and WiFi) is like $5 on AMZN. Which is probably sub-$2 in any meaningful quantity in Shenzhen. We've been living, at least until the tariffs, in a StarTrek like world where whatever we want is available from Shenzhen for a ridiculously low price (which in many respects is better than "free" because "free" brings with it its own humongous problems).
I've just started a Salvage Pile in my workshop. Laser printer with fax modem was the first for excision and harvest. I could feel the addiction take hold before the last of the plastic shell was tossed into the refuse bin. The stepper motors alone!
I have a huge old microwave on the blocks next. After that a series of small odd ball electronic toys and a few early LED bulbs. If I ever come across a vape, I'm sure it'll make its way on to the shelf.
Doesn't look like SMD was great. This looks like lowest cost has gone back to .. rows of people with a soldering iron patching the cheapest possible flow process.
I'm amazed there isn't more of an outcry against these things. I'm not an environmental activist, but even I'd feel wrong just throwing something like that away.
It's not rediculous if you look at this through a modern lens. In reality this tech is cheap. Trying to keep it around is hoarder mentality. You are stockpiling garbage which can be cheaply replaced.
For these devices the microcontroller needs to be super cheap. Microcontrollers like the Puya PY32 Series (e.g., PY32C642, PY32F002/F030) can cost in the $0.02 - $0.05 range for the kind of many-million volumes applicable for disposable vapes. These are 32-bit ARM Cortex M0 MCUs, running at a 24 MHz clock or similar, some with 24 KB of ROM and maybe 3 KB of RAM!
To put into context: this is 3x the ROM/RAM of the ZX81 home computer of the early 1980s. The ARM M0 processor does full 32-bit multiplication in hardware, versus the Z80 that doesn't even offer an 8-bit multiply instruction. If we look at some BASIC code doing soft-float computation, as was most common at the time, the execution speed is about 3 orders of magnitude faster, while the cost of the processor is 2 - 3 orders of magnitudes less. What an amazing time we live in!
Currently working on a method to recycle / repurpose the li-ion cells obtained from the disposable vapes, trying to scale up the recycling effort by releasing products to fund the manpower required to breakdown and sort the vape components . Getting close to releasing the first 100 demo models of the product for stress testing in the wild. Currently based in the greater Seattle area and here is a link to my site if anyone wanted to know more:
https://2ndchancemnd.com/
These products are targeted towards high school teens and middle schoolers, carry a number of serious health risks, and anyone involved in making them can rot in hell.
I still think the next evolution of these vapes is for a Tamagotchi-esque device to get built into them and to have the pet grow when you inhale through it. You're already walking around with enough tech - why not gamify it more?
Put it this way, from engineering and technology perpective vape is equivalent to generalization of smoking tools (cigarette, pipe, etc). Naturally it's a very complex as a system and no small feat because you are going to generalize relativity and AI, for examples general relativity and AGI, respectively.
After-school tech club idea: instead of just handing kids an Arduino, tell them to get their purloined vapes out of their pockets and hack 'em till you get JTAG or semixosting working.
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[ 3.2 ms ] story [ 65.7 ms ] threadThese things should have 100 times the deposit amount of a can of soda with mandatory requirements for retailers to take the 'empties' back.
Hosting a WebSite on a Disposable Vape https://news.ycombinator.com/item?id=45252817
I have a huge old microwave on the blocks next. After that a series of small odd ball electronic toys and a few early LED bulbs. If I ever come across a vape, I'm sure it'll make its way on to the shelf.
"One man's trash is another man's treasure."
To put into context: this is 3x the ROM/RAM of the ZX81 home computer of the early 1980s. The ARM M0 processor does full 32-bit multiplication in hardware, versus the Z80 that doesn't even offer an 8-bit multiply instruction. If we look at some BASIC code doing soft-float computation, as was most common at the time, the execution speed is about 3 orders of magnitude faster, while the cost of the processor is 2 - 3 orders of magnitudes less. What an amazing time we live in!
https://hackaday.com/2025/09/15/hosting-a-website-on-a-dispo...