Wired Remote for Pioneer HU

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Thread: Wired remote for Pioneer HU

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- 28th July 2011, 17:38

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Dec 2008Ploiesti,

ROMANIA516

Wired remote for Pioneer HU

Hi ! I try to build o ne wired remote for HU Pioneer , using remote control stalk near the steering wheel, from Renault. I wrote thecode ; in simulation work fine. But...I don't know how setting ports "b" and what to do when push_button it's press.In "origin a l" remote, the command a re given by put ting resistors "to ground". How can I do this with my PIC ? Thanks inadvance !

Code:

#1

Registered User fratello

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@ DEVICE pic16F628A, INTRC_OSC, WDT_OFF, PWRT_OFF, BOD_OFF, MCLR_ON, LVP_OFF, CPD_OFF, PROTECT_OFF

Include "modedefs.bas" ' Serial Protocol Define OSC 4 ' 4MHz

CMCON = 7 ' Disable on-chip comparator, PORTA in digital mode

'// Define port pins as inputs and outputs ... TRISA = %00000111 TRISB = %11111100

portb = 1include "c:\pbp\keypad2.pbp" ' see http://www.picbasic.co.uk/forum/showthread.php?t=3250

main:gosub keypadscangosub checkgoto main

check:select case keycase 1 ; volume down trisb.2=0 ; ????? pause 200 ;

trisb.2=1 ' ?????

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Re: Wired remote for Pioneer HU

Thank You verry much for support !I use matrix keypad because the Renault remote act like one (see picture) !

So, it's enough (?) something like this :

Code:case 1portb.2=0trisb.2=0pause 500 ; i put the resistor on portb.2 to ground for 0.5 secportb.2=1trisb.2=1

The "portb" it's OK to set in header "PORTB=%11111100" ?

Last edited by fratello; - 28th July 2011 at 18:32.

Originally Posted by mister_e

What you need to do is to clear the PORTB bits (to 0) and set your TRISB bits to 0 when you want to set a resistor to ground, and to 1 when you want to disconnect the resistor from the circuit.

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- 28th July 2011, 19:06

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Sep 2009459


Set all pin to low, and then just change tris registers, instead of changing port and tris.Also add 5.1V zener between resistor common wire and ground.

#4

Registered User

pedja089

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7/22

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- 28th July 2011, 19:43

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Dec 2008Ploiesti,

ROMANIA

516


Now it's ok ?

Code: '// Define port pins as inputs and outputs ... TRISA = %00000111 TRISB = %00000000

include "c:\pbp\keypad2.pbp" ' see http://www.picbasic.co.uk/forum/showthread.php?t=3250

main:gosub keypadscangosub checkgoto main

check:select case keycase 1 ; volume downportb.2=0pause 500 ; i put the resistor on portb.2 to ground for 0.5 secportb.2=1

#5


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- 28th July 2011, 20:13

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#6

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9/22


THANK YOU ALL !

Code: gosub checkgoto main

check:select case keycase 1 ; volume down trisb.2=0

case 2 ; track - trisb.3=0 case 3 ; volume up trisb.4=0 case 4 ; mute trisb.5=0 case 5 ; source trisb.6=0

case 6 ; track + trisb.7=0 end selectPause 500 ' do it for 0.5 secTRISB = 255Return

end 'of story !

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- 28th July 2011, 21:13

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Sep 2004montreal, canada

6,900

#8

Contributor mister_e

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10/22


Time to celebrate!

This code is...

Steve

It's not a bug, it's a random feature.There's no problem, only learning opportunities.

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- 22nd May 2012, 13:52

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Dec 2008Ploiesti,

ROMANIA516


Scheme, as conceived above, does not work !!! I put opto-couplers at PIC outputs and work fine ...What could cause it does not work in this hardware ? Need to manage some (others) PIC registers ? Regards !

#9


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11/22

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- 22nd May 2012, 14:25


Feb 2006Gilroy, CA

1,527


I'm confused. So, your big thank you a year ago, (and the happy dance by Steve) was for code you couldn't get working? Or youdidn't try the code until now? Perhaps more explanation is required, at least for me.

http://www.scalerobotics.com

#10

Moderator ScaleRobotics

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- 22nd May 2012, 15:19

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Dec 2008Ploiesti,

ROMANIA516


Yes, I have not tested this scheme until yesterday ... and how I say, I found that does not work ! Even if my ohm-meter show"right" value of resistances ( at every press of buttons) the HU not react ; with optocouplers all are ok. Strange for me...Thehardware it's finished, but remains my astonishment about this. Thanks for reply !

#11


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- 27th May 2012, 23:27 #12

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12/22


Aug 2006Look, behind you.

2,762


Welllll Fratello, it seems you've been bitten by a simulator ?One hint from Steve's code's comments . . . " MUST USE MPASM " . . . Your configs indicate PB assembler.

If you do not believe in MAGIC, Consider how currency has value simply by printing it, and is then traded for realassets..

Moderator Archangel

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- 28th May 2012, 07:24

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ROMANIA516


Thanks for reply !I do not think I understood very well ...What that means "MUST USE MPASM" ?!Trisx.y in PBP it's not like trisx.y in assembler ?

#13


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- 28th May 2012, 15:28

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Nov 2003Wellton, U.S.A.

#14

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So...with schematic from post #1 - no results !With a simple resistor - good results ; with optocouplers - good results too.

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Last edited by fratello; - 28th May 2012 at 18:57.

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- 28th May 2012, 19:58

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ROMANIA516


...and how an "original" remote work :

#18


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18/22

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- 29th May 2012, 06:16


Oct 2005Sweden

2,576

#19

Contributor HenrikOlsson

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19/22


Hi,I haven't studied this thread in detail but if the idea is to "place a resistance" across the plug then I don't think you can run thesame code (if that's what you're doing) with the two different hardware designs. When using the circuit with the opto-isolatorsyou drive the PIC-pin high in order to turn on the opto-isolator and connect the associated resistor across the plug - and if I readyour posts correct this works fine.

It's not exactly clear to me how the plug is connected to the circuit in post#1 but it looks to me as if this circuit doesn't work thesame way as the one with the opto-isolators. So, if you're trying to run the same code with the two circuits my guess is that'swhere your problem is.

/Henrik.

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- 29th May 2012, 06:40

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ROMANIA516


Thanks for support, Mr.Henrik !When I switch to optocouplers, I changed code :

Code:

case 1 ; volume downPortb.2=1Pause 100Portb.2=0

My "sources of inspiration" was here : http://www.panuworld.net/minidisc/fordsony/index.htm & http://www.fiatforum.com/marea/29682...-finished.html

Last edited by fratello; - 29th May 2012 at 06:47.

#20


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20/22

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- 29th May 2012, 06:54


Aug 2006Look, behind you.

2,762


Must use the MPASM assembler from Microchip, and not the PB assembler supplied with PBP. I am betting the simulator defaultsto using MPASM and simply ignores the PB configs altogether. So when you run it, it knows what to do with Steve's keypad codewhereas PB does not.Most of Steve and Darrel's code samples require MPASM, and when you upgrade to PBP3 it ONLY usesMPASM, so it is a worthwhile change.

Last edited by Archangel; - 29th May 2012 at 06:58.

If you do not believe in MAGIC, Consider how currency has value simply by printing it, and is then traded for realassets..

#21

Moderator Archangel

Originally Posted by fratello

Thanks for reply !I do not think I understood very well ...What that means "MUST USE MPASM" ?!Trisx.y in PBP it's not like trisx.y in assembler ?

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- 11th April 2013, 11:40

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#22

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Hi,

did any of you build adapter for stalk steering wheel controls on renault (tuner list stereo instalation, mine laguna year 2002) forpioneer? I saw scheme above but i dont know how to wire it in little yellow miniISO 6-pin jack that is connected on steeringwheel controls? Any help?

Thank You in advance.

Registered User Sandiki

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- 19th April 2013, 05:44

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Aug 200541


the reason the original design doesnt work is due to parallel resistors not giving the required voltage at the stereo plug (due tovoltage divider effects), by using opto's you are supplying discreet resistances which results in the correct voltages

#23

Registered User jamie_s

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Wired Remote for Pioneer HU

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