ICL7660 circuit， could anybody help me?
still many thanks@vanepp, pity i dont have scope here, but i connected the pin6: LV to the GND, and used SGM3204 , it turned out good. 200mA loading capacity. cheers.
View ArticleSwitec X27 stepper motor
I found this really nice switec x27 stepper motor for fritzing, but it doesn't have any drilled holes for the pcb. Can someone help with those? It should have 4 holes for the contact, 2 larger holes...
View ArticleSwitec X27 stepper motor
Actually you should be able to do this for yourself. Two of the holes look to be in place (the copper rings). For them you only need to drag hole from core pcb view and center it over the pad and...
View ArticleCan I use MAX232 to make a split power supply?
For an opAmp rails I need positive and negative voltages i.e. Vcc, Vee. I'm looking for a good IC which is commonly used for creating split power from a single power supply. Many recommends ICL7660....
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Can I use MAX232 to make a split power supply?
Does it have to be a single IC? I use these: www.ebay.ca 1PCS NEW DC 5V TO ± 12V Mini DC converter board Power module | eBay 1PCS NEW DC 5V TO ± 12V Mini DC converter board Power module | Business...
View ArticlePrinted manual shipped with starter / creator kit
Hi,as I can see, the shop page and the starter and creator kits aren't available any longer.Can I download the printed manual shipped with the two mentioned kits as PDF file or any other format? I'm...
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Lines on PCB? Problem
Hello, Why do I have these horizontal lines on my PCB? I see them in Fritzing when making the PCB as well as on the etchable PDF file.
View ArticleLines on PCB? Problem
I expect best bet would be to upload the sketch so we can see this in Fritzing and determine a cause/solution.
View ArticleLooking to pay someone to create a large part
You can change the text to paths, and that gets around all the mucking around text/font problems. No one is ever going to change the text in the future so it's not going to be a problem.
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Quick PCB review
Hi guys! Between my exams i found some time to clean it up. This is how it looks like right now: Pasted image897x749 153 KB I don't know anything about the gerber thing, but i'll look it up In the...
View ArticleLooking to pay someone to create a large part
While it may come to that, I'd prefer not to. It makes the part less reusable.
View ArticleLooking to pay someone to create a large part
If it was a common part, ie TO-220, where you might have to mod it to another part, yes it's better with the text/font. But because this will never have to be changed, it would probably be better with...
View ArticleQuick PCB review
Better, but you'd better get in the practice of never using 90º turns because when you move to higher frequency stuff the reflections of those sharp turns cause havoc. Notice how on mine it doesn't...
View ArticleHow i can build fritzing principial bysenting a params
I want sent params in fritzing and get shematic. If i save project and open it in word pad i have already builded code how i can get src in a small blood way. Mb smb have exp in smth similar?
View ArticleCustom shapes for the solder mask blocker
Can I get a more n00b-friendly explanation for how this works? I'd like to import a custom shape (like a logo) that blocks out the soldermask.
View ArticleHow to Make Capacitive Touchpads in Fritzing
Great thread, I will have to try this out...
View ArticleQuick PCB review
Hi Old Grey, Thanks for the reply, i didn't know about the high frequency stuff. But normally all the signals are digital (except for the ones at s- and s+. I guess that this high frequency distortion...
View ArticleLines on PCB? Problem
The lines are caused from the way Fritzing scans the copper fill (one line at a time). The core people are working on a new algorithm for drawing the copper fill. It should not cause a problem under...
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Looking to pay someone to create a large part
Brad: a suggestion (perhaps way too late ) on a layout improvement. While testing the part (which looks to now at least be entirely working) I ran across an issue where it is hard to get the wires...
View ArticleGedrucktes Manual das dem Starter / Creator Kit beiliegt
Hallo,soweit ich weiß sind Starter und Creator Kit nicht mehr erhältlich.Eigentlich aber interessiere ich mich nur für das gedruckte Manual, das diesen Kits beiliegt. Ist dies käuflich erwerblich bzw....
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