PICKINI V4 - an easy to build, self adjusting PI detector

[nick holas]

hi all
hi morgatron
i made looooooots of experience with this methode and wants to share with u.
beware of the charpie pen it usualy take off during chemical reaction because acid,hot,and there s little bubble(mechanic action).if i was you ,i do it again .

as i so in 175 post ,you press too hard on your iron ,or it was too hot during too long period or bad toner quality (compatible cartridge are not the same quality of toner) and so your toner has dribbled.do it again it dont cost you a thing comparing the cost of blank pcb (personaly i use glossy photo paper or windows sticker film that blurr glass).

[Altair]

Hi folks,
I suggest you to take a look at this method:
http://www.instructables.com/id/Heat...or-PCB-Making/
I have obtained very good result with it.

[Tim]

Altair, that is a great instructable! I will definitely be trying that in the near future!!!!!

[ripsdevala]

10/10 will try it

[6666]

Hi folks,
I suggest you to take a look at this method:
http://www.instructables.com/id/Heat...or-PCB-Making/
I have obtained very good result with it.

Interesting thanks.

[geoscash1]

Boards ready for pic

Well, got my board soldered up and ready for the pic. Still waiting to get the pic chips in the mail. Will check or test the 12v and 5v portions of the board and then go from there.

Question,
On the audio, the board has 3 holes (pins for attaching), center one is ground, outer holes go to 1k resistors. How or which way is this connected up, I assume it is for headphone/speaker setup or am I missing something?
speaker only have 2 wires and same for the headphone plug, so am guessing it is designed to attach speaker to one side and headphone to the other with the middle pin being the common ground for both?

Any help with that is much appreciated
Geo

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[F117]

@geoscash1: looks promising !

speaker only have 2 wires and same for the headphone plug,

You can connect a speaker between one of the 1K resistors and ground (left or right to middle pin).
You can decrease the 1K series resistor to achieve louder sound.

A typical 3.5 mm headphone jack has 3 connections: L, R and Gnd. They match directly to the 3 pin header on the board.
Picture of a 3.5 mm jack:


Have a look at this picture:

[geoscash1]

@geoscash1: looks promising !



You can connect a speaker between one of the 1K resistors and ground (left or right to middle pin).
You can decrease the 1K series resistor to achieve louder sound.

A typical 3.5 mm headphone jack has 3 connections: L, R and Gnd. They match directly to the 3 pin header on the board.
Picture of a 3.5 mm jack:
[ATTACH]37859[/ATTACH]

Excellent, thank you for the reply and the pic, much appreciated.

[morganton]

hi all
hi morgatron
i made looooooots of experience with this methode and wants to share with u.
beware of the charpie pen it usualy take off during chemical reaction because acid,hot,and there s little bubble(mechanic action).if i was you ,i do it again .

as i so in 175 post ,you press too hard on your iron ,or it was too hot during too long period or bad toner quality (compatible cartridge are not the same quality of toner) and so your toner has dribbled.do it again it dont cost you a thing comparing the cost of blank pcb (personaly i use glossy photo paper or windows sticker film that blurr glass).

Yes, thanks for that. I made another one that turned out much better. I'm waiting for some .035" drill bits to drill the holes and then I'll etch it. I'll post a pic.

[Arionas]

[Arionas]

geoscash1

Question,
On the audio, the board has 3 holes (pins for attaching), center one is ground, outer holes go to 1k resistors. How or which way is this connected up, I assume it is for headphone/speaker setup or am I missing something?
speaker only have 2 wires and same for the headphone plug, so am guessing it is designed to attach speaker to one side and headphone to the other with the middle pin being the common ground for both?

Any help with that is much appreciated
Geo

[6666]

Well, got my board soldered up and ready for the pic. Still waiting to get the pic chips in the mail. Will check or test the 12v and 5v portions of the board and then go from there.

Question,
On the audio, the board has 3 holes (pins for attaching), center one is ground, outer holes go to 1k resistors. How or which way is this connected up, I assume it is for headphone/speaker setup or am I missing something?
speaker only have 2 wires and same for the headphone plug, so am guessing it is designed to attach speaker to one side and headphone to the other with the middle pin being the common ground for both?

Any help with that is much appreciated
Geo

Top
[ATTACH]37857[/ATTACH]
Bottom
[ATTACH]37858[/ATTACH]

Which component placement document are you using to place these eltro caps

[ripsdevala]

Which component placement document are you using to place these eltro caps

[F117]

@ geoscash1
The polarity of the 2 elco's indicated is wrong on your PCB -- as correctly indicated by Arionas.

[ripsdevala]

Mr.Bernard, its still to low on speaker, even if i connect directly without 1k resistor, is there any way to make it more noisy?