I will not do it,but,if I will be able to create a working FreeBSD "tablet" with a professional look and feel, can I start selling the product as is or should I ask some kind of electrical certification to ensure that the tablet created are safe ?
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Where I can buy the Samsung 35E 18650 3500mAh 8A -Protected Button Top Batteries.
- Thread starter ziomario
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| System Name | Brightworks Systems BWS-6 E-IV |
|---|---|
| Processor | Intel Core i5-6600 @ 3.9GHz |
| Motherboard | Gigabyte GA-Z170-HD3 Rev 1.0 |
| Cooling | Quality case, 2 x Fractal Design 140mm fans, stock CPU HSF |
| Memory | 32GB (4 x 8GB) DDR4 3000 Corsair Vengeance |
| Video Card(s) | EVGA GEForce GTX 1050Ti 4Gb GDDR5 |
| Storage | Samsung 850 Pro 256GB SSD, Samsung 860 Evo 500GB SSD |
| Display(s) | Samsung S24E650BW LED x 2 |
| Case | Fractal Design Define R4 |
| Power Supply | EVGA Supernova 550W G2 Gold |
| Mouse | Logitech M190 |
| Keyboard | Microsoft Wireless Comfort 5050 |
| Software | W10 Pro 64-bit |
I don't know the laws there, or the expectations of the public, but here, if you are selling to another a product you made, it better be safe or you will get the pants sued off you by ambulance chasers/shysters in a heartbeat. So at the very least, you should get liability insurance - if not your own lawyer.
So here is another link, this time for bare board and you can connect the batteries yourself - might require spot welder:
With regard to certification, in EU you definitely need "CE" mark that assures everyone your device does not emit radio interference. There is also a requirement to be lead free. There could be other laws. Note that the rules are likely a bit different for "kits" rather than complete devices. With the kit the customer is expected to assemble it themselves. Do some research and talk to a lawyer.
With regard to certification, in EU you definitely need "CE" mark that assures everyone your device does not emit radio interference. There is also a requirement to be lead free. There could be other laws. Note that the rules are likely a bit different for "kits" rather than complete devices. With the kit the customer is expected to assemble it themselves. Do some research and talk to a lawyer.
There are plenty of "kit" products on Amazon where everything is soldered already and you just need to connect or screw pieces together. But I am in USA and really don't know the situation in Europe - read websites, talk to a lawyer. Also, at least in USA the FCC emissions check costs several thousands from the lab - not a big deal if you make enough to pay yourself salary and can do most of the verification yourself, but might be tricky if you are just starting from 0.
The lab uses professional equipment that is expensive, but there are substitutes - all you need is a sensitive spectrum analyzer, some antennas and relatively EMI quiet place to do the test. This way you can be prepared and not pay the EMI lab for several tests.
Antennas can be had cheaply:
There are also inexpensive spectrum analyzers like TinySA - do your own research to get the best one, as some of the clones might not have the best performance. I don't know what the sensitivity of TinySA type analyzers is, if it is not enough you can get an amplifier like the link below or even a bare board.
In the USA these parts can be cheaper on eBay, and also you might find more variety. Amazon often ships faster, but this varies as well.
I also suspect one can use RTL-SDR module to do scans of frequency as a spectrum analyzer, but I am not sure how easy it is to calibrate it to find out how much power you really have.
The way you do the test is that you position the probe where you want and do a background scan with device off. If you find any particularly loud peaks you need to deal with it either by finding what other equipment is producing those, or by using a box that shield and/or absorbs outside interference like radio stations. After you have done background scan you save the trace as reference, turn the device on and do another scan. This time around you plot new scan minus reference and look for any excess. If nothing obvious is found, move the probe around until you find excess and then repeat the procedure with background scan, as your background has probably changed.
Since you are using commercially made components you don't have a luxury of redesign if you find EMI problems and you would need to mitigate. Metal enclosure suppresses EMI, but if you don't have that you can augment it with adhesive metal foil (copper preferably). There is also EMI absorbing foam that works at high frequencies. Cable position can have great effect on EMI, especially if there are sharp turns - avoid them. Note that both metal foil and foam will affect cooling.
---> There are plenty of "kit" products on Amazon where everything is soldered already and you just need to connect or screw pieces together...
If you find a kit made of electronic hardware components that promises to boot and run FreeBSD,let me know and share it with me ;D
If you find a kit made of electronic hardware components that promises to boot and run FreeBSD,let me know and share it with me ;D
Heh
How about Rapsberry pi ?Just add a microSD card with preinstalled OS and there you go
Add touchscreen and keyboard if you feel like it.What's the difference with what I'm doing ? only the soc. But the Rockpro RK399 is better than the Raspberry Pi. If you look further you will find a version of FreeBSD for the Rockpro. I can also swap the Rockpro with the Raspberry Pi if I want. The problem are the drivers. FreeBSD is not a mature multimedia OS,it is tailored to run on servers. I will be lucky if it will be able to turn on the display. For sure it is not able to enable the touch screen without a driver. LInux is full of drivers for everything,but not FreeBSD. And I'm not a developer. I'm not able to write drivers for this os.
Well you asked for a kit that can FreeBSD and I suggested Raspberry Pi, as it has a lot of addons just like you need, including batteries. If you look at the link above, it appears that Raspberry PI2 has all the essential components supported with FreeBSD. The newer Raspberry Pi4 is missing audio and Wifi.
if you want to try x86 rather than arm there is a list of laptops and their compatibility with FreeBSD:
Essential components.,ok,but it's not enough to have the essential components working to have a full satisfaction when you see that the product where you have invested time and money,works very partially. FreeBSD does not support most of the displays and the touch screen panels due to missing drivers. A lot of multimedia devices lacks of the drivers. I'm not interested to try X86,but give a look at the table,how many features are missing and broken. I'm trying to create some kind of tablet. At the moment I never found a device that looks like a tablet where FreeBSD runs decently. I'm sorry but there aren't kits where everything works enough good to be able to create a mature product neither to sell it in a market place. Everything is in experimental stage. More luck with very old device,but choose a very old device is a big compromise,for me not acceptable.
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I guess I am missing something - if you are not using XFree86 how are you going to use the display ? Console only ?
Also the table I am looking at lists all Raspberry PI 2 devices as supported, including audio, display, camera, ethernet and USB. It's the newer Rapsberry PI 4 that has audio, camera and WiFI listed as unsupported, probably because the driver for the broadcom chip is not ready yet.