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76  Using Arduino / General Electronics / Re: first pcb try on: January 23, 2013, 10:21:34 pm
Oops, forgot to put those.
Ok, i'm going to do a little research on that.
77  Using Arduino / General Electronics / Re: first pcb try on: January 23, 2013, 10:09:32 pm
Ok, so i tried (hard) lol this is the result.
would you mind checking if everything's ok ?
78  Using Arduino / General Electronics / Re: first pcb try on: January 23, 2013, 08:53:33 pm
I'm trying changing it to single side now smiley
question: what's the package for 1uF capacitor (options are from 100mil to 300mil THT electrolytic)
also for 22pf capacitor (options are 100mil and 200mil)

Also, i didnt understood exactly what you mean by labeling net as ground... (my native language is portuguese, so maybe that's the problem of understanding specifical/technical english words)
79  Using Arduino / General Electronics / Re: first pcb try on: January 23, 2013, 07:29:32 pm
As you can see in the diagram, pin 8 is connected :o
why didnt fritzing connected it at pcb view ?
thanks
80  Using Arduino / General Electronics / Re: first pcb try on: January 23, 2013, 10:04:00 am
Well many thanks for all tips and help.
I dont know why pcb shows without pin 8 connected, since it's connected to gorund in the diagram view :o (maybe fritzing sucks)
I will try to do it single side only and will post diagram and pcb here so you can review it

@pwillard yes i'll use laser printer toner transfer method if i need some help i'll get in touch with you. thanks
81  Using Arduino / General Electronics / first pcb try on: January 21, 2013, 06:53:47 pm
Hi, i spend some minutes trying to do my first pcb, basically it's an arduino with a 3.3v regulator so i can connect a nrf24l01 chip.
If it's alright i will buy some ferric chlorid so i can make my first pcb.

Please give any hints, opinion, advice...
82  Using Arduino / General Electronics / Re: 3v regulator needed on: January 05, 2013, 01:17:31 pm
Is it this one http://pdf1.alldatasheet.com/datasheet-pdf/view/111555/ROHM/BA033T.html ?
thanks
83  Using Arduino / General Electronics / 3v regulator needed on: January 05, 2013, 01:03:59 pm
hi, i've made an arduino stripboard and need to connect a nrf24l01 that needs a maximum of 3.6v.
What's the best/cheapest regulator i can use to go from 5v to 3.3v or approximately ?

thanks
84  Using Arduino / Microcontrollers / Re: CP2102 and breadboard arduino on: February 10, 2012, 01:52:48 pm
Actually i have one more question...
how could i implement a switch (manually or automatic ) so i could chose whether to use power from usb or external battery?
85  Using Arduino / Microcontrollers / Re: CP2102 and breadboard arduino on: February 09, 2012, 04:30:32 pm
Thank you very much smiley
86  Using Arduino / Microcontrollers / CP2102 and breadboard arduino on: February 09, 2012, 04:00:25 pm
I recently bought an USB to Serial adapter so i can send my sketches to atmega328, and has DTR pin available... so i dont need to manually reset the atmega chip


this is the pin layout


what i would like to know is:
if i have a breadboard arduino that is receiving power via external source that goes through the 7085 voltage regulator ... like this:


in order to use the adapter to send sketches to atmega328 do i still have to connect the +5v of the adapter to atmega's VCC ?! Or that would be only if i wanted to power the arduino via USB ?

Thanks
87  Using Arduino / Project Guidance / Re: Simulate push button with arduino on: February 06, 2012, 04:13:44 pm
Got the power button working smiley controlled by arduino.
Now i just have to test the mode button
88  Using Arduino / Project Guidance / Re: Simulate push button with arduino on: February 02, 2012, 09:22:43 am
Can i use a 2N2222 for the (*) connection ?
89  Using Arduino / Project Guidance / Re: Simulate push button with arduino on: February 01, 2012, 02:05:09 pm
I went out to buy the 2N7000 transistor for button A but forgot to buy one for (*) connection smiley-neutral
90  Using Arduino / Project Guidance / Re: Simulate push button with arduino on: February 01, 2012, 11:05:19 am
Yes, my bad of course it's a diode!
Just need to go out to buy a 2N7000
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