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

[württemberger]

https://www.aliexpress.com/store/328744

[mohammadreza1100]

Hi bernard.in my country there is no pic16f1824 avalaible.please help me what another micro i can use?pls tell me the micro numbers
Thanks a lot.

[BC547]

@Nick: nice PCB with nice logo .
Looking forward to seeing it stuffed and working.

[bernte_one]

nice, but pay attention you have some broken tracks too
(i have problems with photo method my exposure was 30 sec to short and the etchant for the photo laquer was too strong)

just solder a wire on this places, for this it ake the cut off wires from normal resistor or the legs of To92 part

[nick holas]

hi all
hi bernard
hi bernte
i catch the virus too!!!!!
but i m cheater ,i ve made some mod on capacitor because i fed up waiting for aliexpress smd capacitor GRRRRRRR!!!
so now it s not 100% smd (maybe close to 70%! LOL)
look at my pcb ,on the left its a bikini to illustrate the detector (isn t it bernard???)

[bernte_one]

you can find more Infos for diy coil housing from dfbowers here in Forum
the Shells are made of Polystyrol or abs plastic 1mm-2mm
all you Need is a Little box, a vacuum claner, a heater and a holder fram for the plastic Sheets

as postive form i used a coil Shell i ordered from bulgaria, fill it with epoxi, cut off the sidearms
thats all

in that way you can copy all coil forms, you dont Need to coil coil Forum by yourself from Wood
i tried often but my Wood cutting skills are not good

[BC547]

what microchip can we use for replacement of 16f1824

Why not order this one ?
The source code is available and when you look into it, you will notice that many specific resources of this controller are used:
- internal oscillator
- timers
- EEPROM
- ADC
- DAC
- comparator
- PWM
-...
You could probably use its bigger brother the 16F1825, if that is an option at all.

[mohammadreza1100]

Thank u bernard.what microchip can we use for replacement of 16f1824?

[BC547]

pickini v4 deferences with v1and2 and v3 is only in the hex file?and pcb and parts of v4 is the same as v1and2 and v3

Pickini V1 and V2 have the same PCB
V3 and V4 have a different PCB and different Microchip controller.

All 4 are based on the principle of temporal sampling, aka pulse-width measurement. As opposed to voltage sampling like all other classic PI detectors.

If you build one, try this V4.
This is the best one so far because it auto-adjusts itself after power-on.
The others require a manual adjustment of the opamp DC offset.

[Toros]

Bernte one,
They are very good. I would say even excellent.
What material you use. How is it called.

[BC547]

@Bernte_one : Very nice coil shells
Wish I had the skills / equipment to make these.

Best regards,
- Bernard

[mohammadreza1100]

Thank u bernard for your patient.pickini v4 deferences with v1and2 and v3 is only in the hex file?and pcb and parts of v4 is the same as v1and2 and v3?because i want to build v4.
Thank u

[nick holas]

hi all
hi bernard
hi bernte
really fresh pcb!!!!!
thats fine!!! lays are very small betwen resistor smd pads!!!
maybe i could make pcb a little longest to have a better ground plan near regulator
i saw a mistake on pickit header,it does not appear??? only ground???
i ll done mine with toner transfer method and acid + peroxid + water (good epson toner,not refiled cartridge) i ll print it at work LOL
the shell are perfect!!! how about thickness?
is this vaccum forming??? it look like
very good job

[bernte_one]

not perfect but better than nothing

[nick holas]

corrected again!!!!

hi all
hi bernard
hi wurttemberger
thanks for pointing this.i appologize about this.
i give you the corrected pcb (c15 and r16,r17)