Choosing a beginner microcontroller depends on various factors, from ease of use to the project’s complexity. The ESP32 or Raspberry Pico are fantastic for their user-friendly nature, reasonable features, and cost-effectiveness. For space-constrained projects, the ATTiny is a go-to with its simplicity and low cost, perfect for basic electronic setups. When diving into more intricate software, the Raspberry Pi Zero 2 shines with its versatility and improved availability. Mixing and matching these, like a PiZero with a Pico, or an ESP32 paired with an ATTiny, can offer pragmatic solutions. However, for more robust power, the Raspberry CM4 stands out, although it’s more board than a microcontroller. It’s crucial to consider longevity and support when choosing, ensuring the design lasts and is easier to revisit in the future
The Nano’s PWM frequency can be adjusted from the default 490 Hz, with a maximum of 4MHz, at which point the resolution is 4. At a resolution of 256 (which is more than enough for this application), the maximum PWM frequency is 62.5 kHz, which is far outside our hearing range, though can still barely be heard by some younger cats
I did some further reading into this and found out the PWM pins I’m using are controlled by their own separate timer (instead of the one used by the Arduino core for millis(), micros() etc) so definitely will be trying this out the next time I rip the cooler open 😁
I greatly prefer the occasional original post with actuall engagement to a flood of reposts. If I want reddit posts, I will go on reddit (and also get comments and things like that). On a more meta level, the only way a community can gain and retain users is by offering unique content. If 99% of content is just content from Reddit (with missing comments), why should anyone bother to use Lemmy?
Subscribing to a comunity does not cost anything, very few people will leave a community because it is dead, but people will leave a community that spams their feed.
Sorry, your comment is just rehashing all the arguments that I had in many other discussions:
If I want reddit posts, I will go on reddit
The idea is to not give more traffic to reddit and to help people get out of it. By having the content mirrored here, not only we have a method to consume the content from there, we also ensure that the majority of people (a.k.a, the 90% of lurkers) can find on Lemmy the content they are used to consume from Reddit, thus facilitating the migration and fueling network effects.
with missing comments
My system also mirrors the comments, so you won’t be missing anything.
but people will leave a community that spams their feed.
I’m not talking about mirroring posts from communities that are super popular. The idea is to get the content from the long tail of niche communities. There won’t be a “flood” of spam because we are talking about communities that have a handful of posts and comments per day.
AnswerInside a common humidity sensor
Lovely guess but no. This one has more pins, the integrated circuit is more complicated and many people don’t have one at home.
Thanks for using the spoiler tag. It’s working now.
And yes, I took into account that electronic nerds’ houses are different from most others.
The storyMy Genius optical mouse was tracking poorly, even on patterned surfaces and mouse mats. I cleaned the lens and that didn’t help. So I used a knife to open the chip, which is a pinhole camera with a die that integrates the sensor, a basic image processing system, button, wheel and LED controller and a USB (or maybe also PS/2) interface. I cleaned the chip with alcohol (mainly to remove the dust that had landed on it while it was open) and reassembled the mouse to find that it made no effect on ots functionality. I ultimately found out that the focus distance was off and I fixed it by removing the rubber pads at the bottom. The chip appears to have no alphanumerical marking. Full picture of the PCB with this chip – it is slightly damaged because I needed to scrape off parts of it to allow the cover to come off; I also did this because I thought of readjusting the focus by slightly lowering the chip (by bending its legs).
AnswerA thermostat chip uses a big transistor to control a relay, and is usually integrated with a touch/button and display driver, and it can be inside a conventional package. The thermistor is usually a discrete component created with different technology and away from heat-dissipating components. However, your idea that it’s a sensor that needs to interact with the outside world in a special way is not entirely incorrect.
Sorry for the inconvenience, I’m just trying to help people find hints in comments without someone ruining their experience by accidentally revealing the answer without a spoiler tag. This will keep the game fun even after someone guesses correctly.
Okay, I’ll drop the rule but I hope the correct guessser will retroactively do it anyway.
It’s not a bank card for the same reason it’s not a SIM (form factor)
Thank you so much for this post! I’ve been wanting a bench supply for years but never liked the fact they’re huge so I stuck with the same method as you.
Please give an update after a while, I’m really interested hows it goes!
The small supplies are nice for size, but tend to have more noise than the big linear supplies. If you’re working with low-precision DC circuits, or even stuff up to audio frequencies (basically still DC) it’s not likely to be an issue. If you’re working with RF circuits it’s more likely to be an issue, though of course if they’re not too close to the switching frequency it’s easy enough to filter the output.
The “isn’t huge” is the issue. Linear supplies need a rather big transformer to work with 60Hz mains instead of chopping it up at 20kHz or more like switchers do. I’ve got a Siglent SPD 3033X-E (decent, reasonably cheap) and a BK Precision 9201 (better, more expensive).
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