PICKINI V3 - an easy to build PI detector

[bernte_one]

hello tclow and Guzzi
if you think about building the pi circuits from itmd read the extra threads for this Projects
not so easy as it seems

[seras05]

I buy the pic in eBay next build this project ver y nice

[dennisgold]

HI F117. I build your pickini v3 and i make a few chance and work well. i changed the 1n4148 for 1n5819. schotsky. i cut virtual gnd and to put on +5 voltios. the other ic ne5532 for to amplifier and high gain. the gold more a less 20 cms. thanks for your project.
pd: firmware is update pickini, but also work old pickini software pickini. the cpoil is same. 27 turns on 20 cms diameter and 0.8 mms. god bless you

[dennisgold]

[dennisgold]

the pcb board is inverted, thatswhy i put ic front side

[F117]

Thanks for the pictures of your build !

The stem construction looks strange: the handle bar is at the same side as the electronics / battery tube ?
Where did you plan on mounting the arm cuff then ?

Regards,
- Bernard

[dennisgold]

on the middle tube. the battery is outside because pi detector is high consumer. is more easy to change the battery

[Arionas]

Your Pcb Photo is correct

[Arionas]

This is my Pcb.....................

[F117]

Looking good, Arionas

[Arionas]

Τhanxs Mr F117
Ευχαριστω Κυριε F117(Greek Speak)

[Dabbo]

Hello everyone!! I mounted the pickini v3 . l78l05 warms up very much . I am forced to shut down immediately . what problem can be ? thanks to all dabbo .

[eclipse]

There's no reason for this component to be heating up. Mosfet & Coil are powered directly by the battery. It's 1 amp device which is used to deliver ~20mA so...
This must be caused by error in soldering (shorting pins) or wrong connection.

[Dabbo]

I send you the photo of my connections . the battery and the potentiometer connected properly? thanks , greetings dabbo

[Dabbo]