#avr | Logs for 2015-08-25

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[00:06:14] <Casper> What is a good replacement for eagle? kicad isn't ready imo...
[00:18:49] <Roklobsta> Casper: which version are you using?
[00:22:36] <Casper> was using 4.19, but it have issue now... so I tried 6.6 and then checked the licensing... man... it changed...
[00:23:47] <Roklobsta> sorry i meant kicad
[00:25:20] <Casper> hmmm
[00:25:21] <Casper> good question, I uninstalled it it seems...
[00:26:28] <Casper> it most likelly was the one in portage, which date from 2013....
[01:04:11] <Xark> Casper: You could try the Altium cloud stuff perhaps? http://www.circuitmaker.com/
[01:10:59] <Casper> Xark: have you tried it?
[01:11:32] <Xark> Casper: Nope. However, sounded pretty decent.
[01:40:08] <DO9XE> Good Morning :) can someone please tell me what I am doing wrong with this avrdude autoconf? :/ http://pastebin.com/cpjZQA56
[01:41:55] <DO9XE> as i use the avr-isp-mk2 (it is not implemented the right way) i need to patch and compile it
[20:16:12] <Tom_itx> anybody order from jameco? want a free breadboard and cheap chinese jumpers? Offer Code WRGA6733R when you place your order of $25 or more before September 11, 2015
[20:17:39] <Lambda_Aurigae> haven't ordered anything from them in many years.
[20:17:51] <Tom_itx> me either, not much anyway
[20:21:22] <Lambda_Aurigae> used to have a local jameco store in kansas city.
[20:22:50] <Casper> I wanted to order from them once
[20:22:58] <Casper> the shipping killed it
[20:23:03] <Casper> so does the customs
[20:26:39] <Lambda_Aurigae> they tended to be rather pricy compared to some places.
[20:26:56] <Casper> yeah
[20:27:57] <Casper> but on that project, it ended up cheaper to buy from 3 different places than all at one... however... digikey: free on 200$ and more else 8$, no customs (since it's canadian) and 1 tax only
[20:28:21] <Casper> mouser and jameco, they wanted close to 20$ for the shipping, plus custom fees, plus the 2 tax
[20:28:56] <Lambda_Aurigae> futurlec.com has some good pricing but their shipping cost and time are kinda outrageous.
[20:29:18] <Lambda_Aurigae> cost wasn't too bad...but they would take 2 to 4 weeks to ship something.
[20:30:03] <Casper> I found a somewhat local place with good price on some parts, like enclosure, ceramic resistor, resistor and capacitors, semi prices seems ok too for the few I checked
[20:30:15] <Casper> and soon I need to try that paper
[20:30:22] <Casper> press n peel blue
[20:30:29] <Casper> I think it will do the trick
[20:31:35] <Lambda_Aurigae> it works well.
[20:31:38] <Lambda_Aurigae> at least, does for me.
[20:31:56] <Lambda_Aurigae> I used to use an iron then got a t-shirt press.
[20:32:16] <Casper> what worry me is that my printer toner is quite thin
[20:32:22] <Casper> and I never got a good transfert
[20:32:30] <Lambda_Aurigae> it heats from top and bottom so I can do double sided.
[20:32:35] <Casper> but the pnp blue is said to add an extra layer, which might just do the trick
[20:32:49] <Lambda_Aurigae> well,,,you can.
[20:33:02] <Lambda_Aurigae> but if your printer isn't dead on you will get wider traces.
[20:33:12] <Lambda_Aurigae> most printers don't print exactly the same on the page every time.
[20:33:24] <Casper> there is 1/8" fuckup if I double pass
[20:33:26] <Lambda_Aurigae> print 2 or 3 times and it looks 3d..
[20:33:36] <Casper> I think they do it on purpose
[20:33:55] <Casper> it's a color printer... probably money counterfeiting countermesure...
[20:34:18] <Lambda_Aurigae> not likely.
[20:34:35] <Lambda_Aurigae> more like poor quality paper handling.
[20:34:53] <Casper> possibly
[20:35:00] <Lambda_Aurigae> counterfeiting countermeasure is a 2d barcode printed on the page somewhere in yellow.
[20:35:05] <Lambda_Aurigae> I fix copiers and printers for a living.
[20:35:25] <Casper> I had a canon inkjet... man... that one was amazing
[20:35:26] <Lambda_Aurigae> it's like 8 by 8 pixels
[20:35:39] <Casper> 8/8mils, 3 pass, was then 10/6
[20:36:04] <Lambda_Aurigae> unfortunately, inkjets don't work with toner transfer.
[20:36:16] <Casper> no, but worked nicelly for photo
[20:37:48] <Yoduza> what is it mean: "No. of I/O's:- " http://www.baltelektron.com.ua/product/350088.html ?
[20:38:09] <Lambda_Aurigae> HP LJ 4000, 5000, 5si, 4100, 8100, and 8150 work well.
[20:38:25] <Casper> I have a 2605dn
[20:38:28] <Lambda_Aurigae> Yoduza, the numberof input/output pins.
[20:38:29] <Casper> and a 1012
[20:38:44] <Casper> tried a 1015 and a brother whatever
[20:38:52] <Lambda_Aurigae> I hate brothers.
[20:39:09] <Lambda_Aurigae> both printers and family.
[20:39:14] <Casper> the brother... when it transfered it was nice, but it was hard... so nothing transfered in the usable way
[20:39:30] <Casper> but... I learned why this week end
[20:39:34] <Yoduza> how can chip without io pins realise SPI or I2C or USB interface ?!
[20:39:35] <Casper> I mean... yesterday why
[20:39:43] <Lambda_Aurigae> what I have found lately is that xerox works better.
[20:39:51] <Casper> brother toner is higher temp melting...
[20:39:59] <Lambda_Aurigae> yup.
[20:40:03] <Lambda_Aurigae> and xerox is lower.
[20:40:19] <Lambda_Aurigae> Yoduza, what the hell are you talking about?
[20:40:23] <Casper> Yoduza: all chip have pin, but if you mean with hardware spi/i2c/usb, then the answer is: software
[20:40:27] <Casper> bitbang
[20:41:08] <Yoduza> thay sell chips without pins. So, it is bad chips ?
[20:41:13] <Yoduza> * they
[20:41:17] <Casper> and the page do not say how many io, they say "-" meaning: "unknown/unspecified"
[20:41:50] <Lambda_Aurigae> Yoduza, again, what are you talking about?
[20:42:09] <Casper> but... that page seems to be misleading...
[20:42:27] <Casper> they talk about raspberry b+, but seems to sell only the ARM chip, which is not a RPI
[20:42:50] <Yoduza> Production MCU, 32BIT, CORTEX-M4, 100MHZ, LQFP-100
[20:42:51] <Lambda_Aurigae> not even the same arm that is on the rPI.
[20:43:07] <Lambda_Aurigae> the LQFP-100 is a 100 pin low profile quad flat pack.
[20:43:10] <Lambda_Aurigae> just like the picture.
[20:43:35] <Casper> so I was right, that site is misleading
[20:43:50] <Casper> ukraine... no wonder...
[20:43:52] <Lambda_Aurigae> it's advertising the rPI at the top and selling the chip in the main page.
[20:44:09] <Yoduza> Why in Description: "No. of I/O's:-" and "Embedded Interface Type:CAN, I2C, I2S, SPI, UART, USB" ? Is it possible ?
[20:44:12] <Casper> no offence, but ukraine is not one of the most trustable place
[20:44:26] <Lambda_Aurigae> Yoduza, because the web page is horrid.
[20:44:31] <Casper> Yoduza: the "-" mean: "we were too lazy to read the datasheet"
[20:44:44] <Casper> I'ld personally shop elsewhere
[20:44:57] <Lambda_Aurigae> horrid, misleading, poorly done, and just plain idiotic.
[20:45:48] <Yoduza> ok. Thank you.
[20:46:10] <Yoduza> sorry for break your discuss
[20:46:22] <Lambda_Aurigae> they are just selling the chip there.
[20:46:25] <Lambda_Aurigae> not the rPI....
[20:46:45] <Lambda_Aurigae> you need to read the entire datasheet for the chip you are looking to buy.
[20:46:47] <Casper> and appear to be even more pricey than the real thing already assembled
[20:47:01] <Yoduza> BTW not only chips.. xilinx, altera etc..
[20:47:30] <Lambda_Aurigae> well, xilinx and altera make chips too.
[20:47:41] <Yoduza> devboards etc..
[20:49:27] <Lambda_Aurigae> there are hundreds of places around the world that sell those.
[20:51:15] <Lambda_Aurigae> I looked through that site last time you posted it,,,back when you wanted money in order to give us the address.
[20:51:48] <Lambda_Aurigae> it's just a reseller.
[20:51:56] <Lambda_Aurigae> nothing special about it.
[20:55:23] <Casper> I should finish that schematics...
[21:09:14] * Casper wonders...
[21:09:23] <Casper> current shunt sensing
[21:09:34] <Casper> I guess I should low pass it
[21:09:44] <Casper> should I just put a cap on the opamp inputs?
[23:51:01] <rue_school> http://ruemohr.org/~ircjunk/tutorials/elex/cursense/main.html
[23:52:09] <Casper> rue_school: interrestingly, this is simmilar to what I do, and might actually do that instead
[23:53:06] <rue_school> ;)
[23:54:17] <Casper> which actually give me some numbers that I don't like
[23:54:44] <Casper> 50 mils 1oz 1" .... that can't handle 30A isn'T it?
[23:54:53] <Casper> but would give me the 0.01ohms I wanted
[23:56:19] <Casper> no... 100 mils...
[23:57:46] <rue_school> https://hackaday.io/project/296-bench-power-supply/log/11062-current-monitor-working