can't get AP-8 to work with Prop-1

[dbauer1080]

I am trying to test my Prop-1 with the PIR and AP-8. I have recorded sound(about 6 seconds) into slot 0 of the AP-8. I have copied the program Jon wrote for another individual which follows below. I have connected the devices as described, removed all jumpers from B/R, A1, A0 on the AP-8, and also P7 on the Prop-1. The  L,2,1,0 buttons are open. I can get the AP-8 to play with the play button, and get the PIR to work with the Prop-1 using a different program with a servo. But somehow the Prop-1 and AP-8 aren't talking to each other. Any help would be appreciated. Here's the program used from this thread:


Re: I need a Basic Prop-1, AP-8, PIR program?
« Reply #3 on: October 23, 2007, 04:12:41 PM » 

--------------------------------------------------------------------------------

Here you go:

' =========================================================================
'
'   File...... MPGOnline.BS1
'   Purpose...
'   Author.... Jon Williams, EFX-TEK
'              Copyright (c) 2007 EFX-TEK
'   E-mail.... jwilliams@efx-tek.com
'   Started...
'   Updated...
'
'   {$STAMP BS1}
'   {$PBASIC 1.0}
'
' =========================================================================


' -----[ Program Description ]---------------------------------------------


' -----[ Revision History ]------------------------------------------------


' -----[ I/O Definitions ]-------------------------------------------------

SYMBOL  Sio             = 7                     ' SETUP = out; no ULN
SYMBOL  PIR             = PIN6                  ' SETUP = DN


' -----[ Constants ]-------------------------------------------------------

SYMBOL  Baud            = OT2400

SYMBOL  IsOn            = 1                     ' for active-high in/out
SYMBOL  IsOff           = 0

SYMBOL  Yes             = 1
SYMBOL  No              = 0


' -----[ Variables ]-------------------------------------------------------

SYMBOL  status          = B0
SYMBOL   playing        =  BIT7                 ' 1 when AP-8 is playing

SYMBOL  timer           = B2


' -----[ Initialization ]--------------------------------------------------

Reset:
  SEROUT Sio, Baud, ("!!!!!!!AP8", %00, "X")    ' stop audio if playing

  PAUSE 20000                                   ' PIR warm-up


' -----[ Program Code ]----------------------------------------------------

Main:
  timer = 0                                     ' clear for PIR debounce

Scan_Pir:
  PAUSE 5
  timer = timer + 5 * PIR                       ' advance/clear timer
  IF timer < 250 THEN Scan_Pir                  ' wait for valid signal

Start_Audio:
  SEROUT Sio, Baud, ("!AP8", %00, "P", 0)

Let_Audio_Finish:
  PAUSE 100
  SEROUT Sio, Baud, ("!AP8", %00, "G")
  SERIN  Sio, Baud, status
  IF playing = Yes THEN Let_Audio_Finish

  GOTO Main


' -----[ Subroutines ]-----------------------------------------------------


' -------------------------------------------------------------------------


' -----[ User Data ]-------------------------------------------------------

What you have to do:
  -- Record your audio into slot 0 of the AP-8
     * close the 2, 1, 0 switches when recording
     * return all switches to open for Prop-1 control

  -- Connect the AP-8 to P7 of the Prop-1
     * replace Prop-1 ULN2803 with ULN2003, or see this post for "surgical" instructions: http://www.efx-tek.com/php/smf/index.php?topic=130.0
     * remove the P7 SETUP jumper on the Prop-1
     * remove the AP-8 B/R, A1, and A0 jumpers
     * make sure you connect to the Ap-8 Serial header, and follow the wiring color codes

  -- Connect the PIR to P6 of the Prop-1
     * This doc will help: http://www.efx-tek.com/downloads/pir_docs.pdf

« Last Edit: October 23, 2007, 04:16:28 PM by JonnyMac »  Report to moderator    Logged 

[JonnyMac]

Well, I just copied the program from above, pasted it into my editor, downloaded it to my Prop-1/AP-8 setup and it works fine.  Things to consider:

1. There's a 20-second PAUSE at the beginning -- are you waiting for that to to finish?
2. Did you change the ULN2803 to a ULN2003 or clip of pin 1 of the ULN2803?
    -- see this thread for details: http://www.efx-tek.com/php/smf/index.php?topic=130.0
3. Is your extender cable oriented properly? 
4. Is your extender cable plugged into the serial connector (near the power switch) on the AP-8?

Here's how everything should be connected:

[dbauer1080]

Jon,

Thank you for your swift reply. I think somehow the serial connection on this Prop-1 is not working. I have two Prop-1's, hooked up the other one and it works fine. Also switched ULN2003's and it's not that. Any suggestions for this issue, or is my Prop-1 in need of replacement?

[JonnyMac]

If the Prop-1 is in warranty we'll replace it.  If not, let me suggest you simply mark it as not having P7 available.  Odd, though, that one pin would get damaged in this way....

[dbauer1080]

Is it possible to utilize another P output for serial control of AP-8 and RC-4? If so, how would I change the program to address this? Thanks.

[JonnyMac]

Sure, use P6 for serial and move your active-high trigger to P5.  For P6 you'll have to remove the ULN influence which means clipping a pin, no matter which chip you're using.  Leave the ULN connected to P5, though, because this acts like a pull-down for the trigger circuit.

Here's how you'd adjust the top part of the program:

' -----[ I/O Definitions ]-------------------------------------------------

SYMBOL  BadPin          = 7                     ' do not use
SYMBOL  Sio             = 6                     ' SETUP = out; no ULN
SYMBOL  PIR             = PIN5                  ' ULN acts as pull-down

Let me point out that is is precisely why we use SYMBOLs in our programs; it allows us to make changes in one place that migrate through the rest of the code.

[dbauer1080]

Thanks Jon. I'll get the scalpel out. Does this mean I clip only the left-side pin of the ULN that would plug into P6? I looked at the reference and they called it pin 1 (for the P7 slot) so I'm assuming I would just clip the pin below it on the left for P6.

[livinlowe]

Yes, Pin 2 would translate into I/O 6.

I think!   ;D

Cheers!

[JonnyMac]

You got it; it's pin 2 on a ULN2803, pin 1 on a ULN2003.

[Spooky Dad]

I have followed this thread and wanted to chime in that I am experiencing the same issue as dbauer1080.  My Prop-1 is surely out of warranty at this time, so I am taking a clipper to Pin2 on the ULN2803 that came with the Prop-1.  My question, assuming switching to Pin6 for serial communication works, is that hopefully PIN7 can still be utilized as an input, right?

[Spooky Dad]

Nevermind.