HERE IS ALL-IN-COMPUTER FOR 5$ (tread N02)

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HERE IS ALL-IN-COMPUTER FOR 5$ (tread N02) Anonymous Thu May 31 07:30:13 2018 No.1397199 [Reply] [Original]

tread N01 >>1354290

>>	Anonymous Thu May 31 07:32:01 2018 No.1397203 File: 83 KB, 694x883, COMP_5_USD.png [View same] [iqdb] [saucenao] [google] https://www.youtube.com/watch?v=vGROCUriiHM

>>	Anonymous Thu May 31 08:08:40 2018 No.1397218 >>1397199 FYI, threads start falling off the board when they reach 311 posts or 151 images. That one has 45 posts left.

>>	Anonymous Thu May 31 08:32:15 2018 No.1397226 >>1397218 to many posts was deleted

>>	Anonymous Thu May 31 08:35:23 2018 No.1397229 fuck off you worthless retard

>>	Anonymous Thu May 31 08:48:02 2018 No.1397236 >>1397226 And, whose fault was that?

>>	Anonymous Thu May 31 09:33:25 2018 No.1397248 File: 104 KB, 575x889, cuck5.jpg [View same] [iqdb] [saucenao] [google] >>/diy/?task=search2&ghost=&search_text=&search_subject=HERE+IS+ALL-IN-COMPUTER+FOR+5%24 what are you trying to achieve you worthless retarded piece of shit?

>>	Anonymous Thu May 31 09:43:12 2018 No.1397256 >>1397248 Just report it and move along.

>>	Anonymous Thu May 31 11:19:26 2018 No.1397309 File: 2.30 MB, 1235x5269, All in one shill.jpg [View same] [iqdb] [saucenao] [google] >>1397248 reminder:

Anonymous Thu May 31 13:01:14 2018 No.1397377

>>1397199
Today I started to build a esp8266 based project using a current switch from Amazon to log the status of mains power and sump pump usage, while providing a text for various events and logging to an SD card. The system also provides a graph of the events on demand via a browser.

So far I've been able to log the events, make it txt, sync to ntp, have a config file on the SD card, make a web/socket server, with a bit of json.

Can anyone suggest what the best way of encoding the data on the SD card so that when the browser requests a large sample size it doesn't have to send megs of data? I assume a phone browser may take 20 seconds to let JavaScript convert it to a graph via the socket server. I was considering rle encoding but that wouldn't work out with timestamps. I'm not interested in msqt.

Any suggestions?

>>	Anonymous Thu May 31 13:25:55 2018 No.1397401 >>1397199 Can you watch blacked.com?

>>	Anonymous Thu May 31 16:03:21 2018 No.1397591 >>1397377 use IOT botnet

>>	Anonymous Thu May 31 17:34:54 2018 No.1397723 >>1397591 Never mind I'll just do it myself. Noone said diy was useful anyways.

>>	Anonymous Thu May 31 20:16:19 2018 No.1397809 >>1397199 reported again >>1397036 >>1397092

>>	Anonymous Thu May 31 22:10:53 2018 No.1397860 here is IOT for Android: https://play.google.com/store/apps/developer?id=Samsung+ARTIK+Cloud can easy monititor and control devises connected to internet but it botnet

Anonymous Fri Jun 1 03:47:20 2018 No.1398022

>>1397377

>So far I've been able to log the events, make it txt, sync to ntp, have a config file on the SD card, make a web/socket server, with a bit of json.

You can do all that and you can't come up with a scheme to format simple data? Maybe I misunderstood you, but it should be easy in any number of ways. I save 7 days of data that consists of a number of events and the time they occur. You can easily put one event per bit if it's an on/off event, so one byte can handle 8 events. then another byte or set of bytes can be minutes since midnight, or seconds, or whatever resolution you need. Another byte or two can be the day of the year or whatever other tags you need.

When you want to fetch data you request a particular time block, like "today", or "last three hours", or whatever makes sense.

Like I said, I must have misunderstood your question if you can do all that other crap and can't handle simple data.

Anonymous Fri Jun 1 12:16:55 2018 No.1398183

>>1398022
Oh I've got a few schemes in mind but I'm asking for advice for the fastest, efficient way.

Here's what I'm thinking:

The device will record the high high level of the sump (a secondary float switch hooked up to a 12 v horn), the current switch on the motor and finally mains power status for 3 digital values. I'm also including when wifi is reconnected, initial boot and an error bit. All of these bits can be packed into an 8 bit int. Everything is timestamped with an epoch timestamp which is 64 bits if I recall. That being said I figured a log entry of all signals occurs only on a state change, because I'm not expecting rapid changes. I'm also filtering the inputs to 1/2 second. In case of an intermittent connection.

This can lead to raw socket data that can be parsed by JavaScript (jgraph? Graphio? There's many libraries), it then creates arrays of the data and graphs it. The requests can be by time range of course (minutes, hours, days, months, years) based on min/max time values kept track by the esp.

But is this the most efficient? Shit like this has been done already but benchmarks are not easy to find. This is why I went on a whim and asked diy. It was to save time so I didn't have try all this out. Just figuring out the wifi timers, sd, ntp, station/ap calls and webserver so that it doesn't crash, catches events via interrupt doesn't do weird shit was daunting enough as it was. I killed a whole night learning that the timer interrupt tick cannot be less than 250ms..or it gets angry and autistic. I was using this to blink the led so I could see state changes in wifi, DNS, ntp, check the mail server etc.

If theres no answer I'll try it this way and/or just json encoding all the data and benchmarking it myself.

Anonymous Fri Jun 1 12:26:31 2018 No.1398187

>>1398183
>But is this the most efficient? Shit like this has been done already but benchmarks are not easy to find.

Ahh, you're in compSci mode here. I'd ask /g/ and hope one of the actual programmers who is familiar with this happens to see your question. Failing that, I'd try *cough* reddit programming subreddits, but the best place for expert programming advice in my opinion is stackoverflow.

Anonymous Fri Jun 1 12:32:11 2018 No.1398188

>>1398187
More of a system integration mode. I only have so much time slice on this loop and overwhelming the CPU always leads to autism. Compsci can't handle anything without a mouse nor do they do this shit. It's more EE stuff until. It hits the ether.

/g is less than useful. They just say install Gentoo.

I hate reddit and they gayness although there might be hope. Stack overflow maybe but it's slower than diy most times.

Just seems easier to just try it, bench it and implement. If I get to it this week I'll post results. I appreciate the quick response.

>>	Anonymous Sat Jun 2 00:07:10 2018 No.1398495 bump

>>	Anonymous Sat Jun 2 14:20:11 2018 No.1398803 bump

>>	Anonymous Sat Jun 2 21:02:20 2018 No.1398988 bump

>>	Anonymous Sun Jun 3 20:22:43 2018 No.1399576 bump

>>	Anonymous Mon Jun 4 10:02:53 2018 No.1399852 >>1398495 >>1398988 >>1399576 These are 3 different IPs, how hard are you tryin m8.

>>	Anonymous Mon Jun 4 12:25:57 2018 No.1399916 >>1399852 bump

>>	Anonymous Mon Jun 4 13:47:32 2018 No.1399947 >>1399916 fuck off you worthless retard

>>	Anonymous Mon Jun 4 19:19:48 2018 No.1400124 >>1399852

>>	Anonymous Tue Jun 5 13:54:59 2018 No.1400525 bump

>>	Anonymous Tue Jun 5 14:40:55 2018 No.1400543 So, where is it?

>>	Anonymous Tue Jun 5 18:06:17 2018 No.1400617 >>1400543 do read tread #1

>>	Anonymous Wed Jun 6 13:03:52 2018 No.1401013 >>1397377 >json Throw that out and go binary

>>	Anonymous Wed Jun 6 17:11:16 2018 No.1401223 >>1401013 Sure but how do you get html5 to graph it?

>>	Anonymous Wed Jun 6 17:26:54 2018 No.1401233 >>1401223 websockets works with binary https://blog.mgechev.com/2015/02/06/parsing-binary-protocol-data-javascript-typedarrays-blobs/ look up these topics: js arraybuffer, js dataview, endianness then get gud.

>>	Anonymous Wed Jun 6 18:08:46 2018 No.1401250 >>1401233 Many thanks anon this should kill alot of esp overhead. Can you reccomend a good js graphing library or are they all the same? Looks like I would have to unpack the binary data browser side.

Anonymous Wed Jun 6 18:32:51 2018 No.1401257

>>1401250
I can't recommend one over the other, they're all pretty much the same. Just demo a bunch and find one that performs the way you like with your datasets.
I rolled my own for highly specific purposes like business analytics.
>Looks like I would have to unpack the binary data browser side.
correct, there's no getting around that. don't think of it as unpacking, rather, think of it as having your computer read data that's already its native binary format without any wasteful soÿ encoding/decoding stages.
json has its place, i use it all the time at work, but when i need performance i use application-specific binary data.

>>	Anonymous Wed Jun 6 20:40:39 2018 No.1401342 >>1401257 Finally a voice of reason. Many thanks anon, I will post results when I can get to this.

>>	Anonymous Wed Jun 6 22:36:47 2018 No.1401430 >>1401223 use IOT https://play.google.com/store/apps/developer?id=Samsung+ARTIK+Cloud

Anonymous Wed Jun 6 23:36:20 2018 No.1401459

Just got my first Pi today with the 3.5 touchscreen. Going to dick around and make some general display/informational apps. Is the best route to just make it as HTML/PHP and run in kiosk mode via the browser?

Anyone have cool and >useful pi projects for home?

>>	Anonymous Thu Jun 7 06:43:12 2018 No.1401595 >>1401459 >Pi for rich and stuped people

>>	Anonymous Thu Jun 7 21:57:53 2018 No.1402119 bump

>>	Anonymous Thu Jun 7 22:20:45 2018 No.1402129 >>1401595 chang mad people aren't buying his $5 computer

>>	Anonymous Thu Jun 7 22:46:05 2018 No.1402154 >>1402129 UNFORTENLY DONT ANY chang PRODUCE IT YET

>>	Anonymous Sun Jun 10 21:51:46 2018 No.1403962 bump

>>	Anonymous Mon Jun 11 19:23:09 2018 No.1404485 1st tread have loot of youtube videos

>>	Anonymous Tue Jun 12 08:48:43 2018 No.1404783 Bump

>>	Anonymous Tue Jun 12 17:40:38 2018 No.1405049 >>1397199 >pins pins pins pins

>>	Anonymous Wed Jun 13 09:12:51 2018 No.1405382 bump

>>	Anonymous Wed Jun 13 20:07:54 2018 No.1405689 Do google esp8266 for youtube videos

>>	Anonymous Fri Jun 15 00:57:56 2018 No.1406327 Bump

>>	Anonymous Sat Jun 16 02:34:13 2018 No.1407080 https://www.youtube.com/watch?v=vGROCUriiHM

>>	Anonymous Sat Jun 16 14:04:10 2018 No.1407376 https://www.youtube.com/watch?v=dYLgCs4odBg

>>	Anonymous Sun Jun 17 06:28:28 2018 No.1407831 https://www.youtube.com/watch?v=gsCXKYdxzLk

>>	Anonymous Sun Jun 17 06:34:27 2018 No.1407836 File: 19 KB, 544x480, 1500689897651.png [View same] [iqdb] [saucenao] [google] >>1397199 tread N01: https://yuki.la/diy/1354290

>>	Anonymous Sun Jun 17 22:14:25 2018 No.1408287 https://www.youtube.com/watch?v=ZHy-K7VV0bA https://www.youtube.com/watch?v=dMafNyiUd6Y

>>	Anonymous Tue Jun 19 06:53:42 2018 No.1409055 https://www.youtube.com/watch?v=6NsBN42B80Q

>>	Anonymous Tue Jun 19 13:43:01 2018 No.1409198 https://www.youtube.com/watch?v=-JXuwwXQh8c

>>	Anonymous Tue Jun 19 22:46:17 2018 No.1409447 bump

>>	Anonymous Thu Jun 21 03:55:45 2018 No.1410145 bump

>>	Anonymous Thu Jun 21 19:21:32 2018 No.1410547 bump

>>	Anonymous Sun Jun 24 13:14:41 2018 No.1412237 bump

>>	Anonymous Sun Jun 24 14:07:14 2018 No.1412282 https://www.youtube.com/watch?v=1kQ79ytZKJA ok, we have it, buy $35 to mach

>>	Anonymous Mon Jun 25 11:51:11 2018 No.1412879 File: 153 KB, 1000x1000, ESP8266OLED.jpg [View same] [iqdb] [saucenao] [google] here <--- is $5 all-in-one computer what (You) realy can buy now

>>	Anonymous Tue Jun 26 08:31:41 2018 No.1413446 bump

>>	Anonymous Tue Jun 26 18:59:46 2018 No.1413738 bump

>>	Anonymous Wed Jun 27 06:41:10 2018 No.1414052 bump

>>	Anonymous Wed Jun 27 21:24:34 2018 No.1414443 >>1412879 >>1412282

>>	Anonymous Thu Jun 28 08:32:58 2018 No.1414734 File: 46 KB, 600x337, _____.jpg [View same] [iqdb] [saucenao] [google] bump!

>>	Anonymous Thu Jun 28 15:01:19 2018 No.1414916 File: 49 KB, 500x500, _____.jpg [View same] [iqdb] [saucenao] [google] $35

>>	Anonymous Fri Jun 29 17:08:06 2018 No.1415638 bump

>>	Anonymous Sat Jun 30 23:10:03 2018 No.1416486 bump

>>	Anonymous Mon Jul 2 06:02:18 2018 No.1417272 https://www.youtube.com/watch?v=UC5TS1INeNY

>>	Anonymous Mon Jul 2 15:27:38 2018 No.1417535 bump

>>	Anonymous Wed Jul 4 19:53:16 2018 No.1418974 bump

>>	Anonymous Fri Jul 6 19:55:27 2018 No.1420304 bump

>>	Anonymous Sun Jul 8 18:13:39 2018 No.1421631 https://www.youtube.com/watch?v=w2ibvgTD18c

>>	Anonymous Sun Jul 8 18:35:45 2018 No.1421641 This is one dedicated pajeet.

>>	Anonymous Wed Jul 11 07:41:05 2018 No.1423475 bump

>>	Anonymous Fri Jul 13 21:53:16 2018 No.1425191 bump

>>	Anonymous Sat Jul 14 09:42:49 2018 No.1425477 I can't even figure out what this thread is supposed to be about. A single board computer?? But not raspberry pi?

Anonymous Sun Jul 15 08:49:16 2018 No.1426072

>>1425477
It's just an ESP8266 MCU board that comes with a screen but barely anyone (read: nobody) sells anymore. Last thread someone decided to design a PCB with a keyboard on it and we got OP's abomination. This doesn't need to be a general, impolite sage.

Anonymous Sun Jul 15 15:56:01 2018 No.1426326
File: 10 KB, 154x239, IMG_20180715_224534.jpg [View same] [iqdb] [saucenao] [google]

>>1397199

Fuck You, OP, and everyone you care for !

I saw this thursday, and ordered Odroid-go on-the-spot, got it today.

And now I need to find someone and/or something to fuck my TPE-doll GF-BAE for I have no morew time to.

Yeah, flashed firmware, got arduino IDE, blinked led and got even more crazy than I thought is possible.

Fuck You, Fuck You sideways !

>>	Anonymous Sun Jul 15 21:18:37 2018 No.1426537 >>1426326 Then don't bump, fuckwad.

>>	Anonymous Sun Jul 15 21:49:35 2018 No.1426562 works like absolute shit no thx

>>	Anonymous Mon Jul 16 03:42:59 2018 No.1426709 >>1414734 >>1414916 I gotta make or buy one of these. Very cute.

>>	Anonymous Mon Jul 16 14:07:33 2018 No.1426940 bump

>>	Anonymous Thu Jul 19 07:50:37 2018 No.1428803 Bunp V interdasting

>>	Anonymous Thu Jul 19 19:19:50 2018 No.1429084 >>1428803 kys

>>	Anonymous Fri Jul 20 01:00:09 2018 No.1429246 bump

>>	Anonymous Sun Jul 22 19:58:05 2018 No.1430771 sorry for bump

>>	Anonymous Tue Jul 24 21:47:55 2018 No.1432032 >>1428803

>>	Anonymous Thu Jul 26 13:08:28 2018 No.1432972 >>1428803

>>	Anonymous Sun Jul 29 18:19:46 2018 No.1434998 bump

>>	Anonymous Tue Jul 31 03:14:13 2018 No.1435998 https://www.youtube.com/watch?v=qaMxh0CFXDE

>>	Anonymous Thu Aug 2 07:38:43 2018 No.1437171 https://www.youtube.com/watch?v=vwUGPjQ_5t4

>>	Anonymous Fri Aug 3 15:14:47 2018 No.1437999 File: 187 KB, 1000x1000, ESP_BOY.jpg [View same] [iqdb] [saucenao] [google] https://www.aliexpress.com/store/product/WiFi-Deauther-ESP8266-preflashed-development-board/2996024_32814740638.html

>>	Anonymous Sat Aug 4 20:47:05 2018 No.1438733 bump

>>	Anonymous Sun Aug 5 09:22:17 2018 No.1439016 >>1426326 Odroid go far better than OP's deauther shit, odroid got best docs.

>>	Anonymous Mon Aug 6 03:25:44 2018 No.1439537 >>1439016 yes

>>	Anonymous Fri Aug 10 05:44:18 2018 No.1442762 Bump

>>	Anonymous Tue Aug 14 09:19:52 2018 No.1445196 >>1397199 reddit

>>	Anonymous Wed Aug 15 00:44:03 2018 No.1445658 https://www.youtube.com/watch?v=pYLVgxJ-uGU

>>	Anonymous Thu Aug 16 06:23:06 2018 No.1446353 >>1445658 DOOM!

>>	Anonymous Sat Aug 18 02:55:43 2018 No.1447533 https://www.youtube.com/watch?v=Or29Ac0jb3w

>>	Anonymous Sat Aug 18 14:07:08 2018 No.1447721 >>1397199 >not attiny85 dropped

>>	Anonymous Sat Aug 18 20:26:19 2018 No.1447917 >>1447721 >>1447721 >attiny85 to low memory no wifi

>>	Anonymous Sun Aug 19 08:43:57 2018 No.1448171 >>1447917 >using wifi instead of rf kys

>>	Anonymous Sun Aug 19 23:13:54 2018 No.1448617 >>1448171 shitup, arduino-tard

>>	Anonymous Thu Aug 23 03:26:48 2018 No.1450471 bump

>>	Anonymous Sat Aug 25 02:36:36 2018 No.1451775 https://www.youtube.com/watch?v=kSe6BYtCUmc

>>	Anonymous Tue Aug 28 04:09:34 2018 No.1453513 bump

>>	Anonymous Thu Aug 30 08:22:11 2018 No.1454906 https://www.youtube.com/watch?v=5HRjc83aUY8

>>	Anonymous Sat Sep 1 08:01:59 2018 No.1456106 bump

>>	Anonymous Sun Sep 2 05:21:48 2018 No.1456581 nothing new

>>	Anonymous Tue Sep 4 07:47:10 2018 No.1457893 ok, now wee have it: https://github.com/esp8266/Basic with PS/2 keyboard suport

>>	Anonymous Fri Sep 7 23:44:00 2018 No.1460184 now i awnt sega megadrive with keyboard and mouse port and software on SD card, not only games but also developvtyn system

>>	Anonymous Sat Sep 8 00:11:45 2018 No.1460190 https://www.youtube.com/watch?v=YqouZCVMMwg http://www.symbos.de/apps.htm?4

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