Yeah, AliExpress is the baby version of the wholesale platform Alibaba, and they're now a big enough company to also have their own cloud provider. Temu, Wish and Shein are all trash.
Yeah, nah, I'm not gonna pay 10x the price for a knockoff arduino from a local seller that just buys it from AliExpress anyway. There's no better place to get electronic components and modules without bankrupting yourself
That's what YOU think! Do your own research man! #NoMoon
I'm part of the no-moon society. Flat earth?! How about the fact that the moon is fake!?
As much as I hate the fuck, I feel like harping on this point just makes men who get hair transplants feel embarrassed, and there shouldn't be a stigma around cosmetic surgery.
Fucking good! I know it's not the primary reason, but it's by high time that people see laying off 15k people as a bad thing and the company suffering for it.
Yeah, corporations are doing great, the "economy" is a good indication of that, but it means fuck all for us.
Trans people, seriously, they just want to live their lives in peace. They're not here to radicalise anything or to "trick" anyone. They just want to get on with their lives and be left alone.
Soon it'll be illegal to end your ovulation cycle because every egg is a life. Jesus these people are some fucking dumb religious zealots.
What they're saying here is that the right is made from people who are fucked up, have very little respect and are often racist, not that there's anything wrong with the left. But they're too dumb to realise that I guess.
Hi,
I'm looking for some help in a field that is super technical and I don't fully understand.
I'm planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.
The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.
What I'd like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a Janson 2450AT42B100 or a Molex 479480001.
They go over the circuit board requirements quite thoroughly so I don't think designing it will be too difficult, but what I don't know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I'm not actually sure if it is or not:
You can see it in the middle near the bottom of the diagram here: Seeeduino-XIAO-ESP32C3-SCH
So my questions are:
1: Is this a dumb idea, having a direct plug-on SMD antenna?
2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?
3: If I can't get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?
Edit: Found this SMD female U.FL, so they do exist.
Simply because it's a system based on infinite growth in a finite world.
Look at what the greed of capitalism is doing to our planet.
In a perfect world where humans aren't greedy, maybe it could work, but humans are evil and greedy and it'll never work.
The Win10 one can be pretty handy if set up nicely.