HH2 -- Take Two

[Carl-NC]

You can't use Conn2 for a pot. If you are not using the "ADC" option, then cut that trace and connect the pot wiper to Pin3 and read with the PIC ADC.

HH2 PCB to Ukraine is $12 shipped, via Paypal.

- Carl

[David_1]

carl i sent you a pm about pcbs to the uk ?
thanks
David

[David_1]

Carl pcb arrived today Many thanks..
I draw and make pcbs here but my board maker use elctroless tin plating, yours is lovley and shiny hot air leveled so much nicer than I am getting here. :-) was it made localy to you ?

now I need to sort out a bom so I can build it

many thanks again
David

[Carl-NC]

Sadly, made in China. All I could afford at the time.

[David_1]

well I started looking for a list of components could not find one other than whats on the schematic
I seem to be missing some caps and I will be doing the resistors next unless someone else has already done this ?
FROM REV A1 20JUNE 2009

C1 100UF
C2
C3 22UF
C4 47UF
C5 47UF
C6 47UF
C7 47UF
C8
C9
C10 1000UF
C11 1N
C12
C13
C14 47UF
C15 47UF
C16 NO MARKING
C17 0.1UF
C18 0.1UF
C19 0.47UF
C20 0.47UF
C21 0.47UF
C22 0.1UF
C23 0.1UF
C24 0.470UF
C25
C26
C27 47UF

[David_1]

R1
R2
R3
R4
R5 3.3K
R6 2.2K
R7 270R
R8 1.2K
R9
R10 1?
R11
R12
R13 33K
R14 SEE TEXT
R15 1K
R16 100K
R17 100K
R18
R19
R20 27
R21
R22 NA
R23 VR 100R
R24 1K
R25 1K
R26 100K
R27 100K
R28 1K
R29 100K
R30 150K
R31 VR 100K
R32 100K
R33 100K
R34 VR 1M
R34A 100K
R35 VR 5K
R36 1K
R37 10K
R38 100K
R39 1K
R40 3.3K
R41 VR 5K
R42 100K
R43 10K
R44 10K
R45 33K
R46
R47 10K
R48 10K
R49 10K
R50 10K
R51 10K
R52 22K
R53 30K
R54 470R
R55 1K
R56
R57
R58
R59
R60

[David_1]

there are some gaps I cant find anyone know how to find them or are they just not on the pcb ? no I havent looked yet :-)

[David_1]

http://www.geotech1.com/forums/showt...hlight=HH+4066
seems this has all been done before LOL

[megaport]

Where can I get a PCB for HH2 and how are the price for sale and shiping to Germany?

regards

[David_1]

PCB is $12 shipped. from carl@geotech1.com

is how I got mine :-) ask Carl

David

[David_1]

I have no enameled wire what do I buy for a HH2 coil ?


http://www.geotech1.com/forums/archi...p/t-12025.html
Carl said "As the coil gets bigger, turns get fewer. A 1-meter square coil is 8 turns I think. An 18x24 will be somewhere in between, you will need to experiment. Wire size is not a big issue, 18-26 AWG should be fine."

Thanks
David

[grungymike]

I've been fooling around with PCB designs for the HH1, and in my reading learned that the HH2 appears to have the active pull down mentioned as an option in the HH1 overview article. Also discovered that a 2 stage op amp circuit is being developed for the HH2. What I'm wondering is if the bulk of the HH2 circuit will work with the pair of 221 based sampling circuits used on the HH1. Reason I ask is, I'm struggling to wrap my head around analog based circuitry, am most definitely not ready to tangle with PIC32 (?) programming. I use to design PC boards for a living, back in the tape and light box days, but I'm a LONG way from being an electronic engineer...

By the way, the reason I'm stuck on the HH1 is because it is so adjustable. Aside from being a learning platform, I've got a gut hunch it could make a damned good nugget shooter.

thanx-
grungymike

[cko47]

the same program for pic16f87 with 3 push button (adjusting period, pulse width ........

I wrote the program for pic16f87 with 3 push button for adjusting period, pulse width, sample 1 delay, sample 2 delay, sample width and saving this parameters in eeprom.
PIns are assigned
TxPulse - A1
Sample1 - A7
SAmple2 - A4
Push Button Mode - A3
increase value for needed parameter A2,
decrease ------------------------- - A0,
asynchronous UART for LCD 16x02 - PB5 (displayed each parameters)
Mode is from 0 to 5
Mode 5 save parameters by pushing button A2
Mode 0 for changing Period. A2 push button decrease value and A0 increase value
Mode 1 for changing Pulse Width with A2 PB for decrtease and A0 increase value
Mode 2 for changing Sample1 delay .................................................. ....
Mode 3 for changing Sample 2 delay -----------------------------
Mode 4 for changing Sample width ----------------------------
Mode 6 Is not used while.
This program is not completed for signal processing (while). I need 2 weaks for this)
And is not formted text in LCD display (waiting LCD display with UART controller from China)
I hope this info may be used .

[6666]

CK047
is there a schematic that you followed ?

[cko47]

new version

Some from described before is changed. Not used second delay. For simplifying remove quartz and capacitors (2x27 pf). Is changed also program for pic16f88.
Board is created by Sprint Layout 5.0. Therefore I not placed schematic (all value You can see by cursor placed at component of board). Chip 7805 and its capacitors you can remove when this board is connected to HH2 pic. All file are attached in zip file.