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  • Author Author: roborob1266
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Connection Issues

roborob1266

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Hello everyone. I was able to get the Adafruit RA8875 to work with the MKR1000.

I was recently able to get the VS1053 (Adafruit Music Maker MP3 Shield) to work with the MKR1000.

The issue is when I connect them together with the MKR1000, I cannot get the MP3 shield to work.
It is not detected with the wiring I am selecting.
I am using hardware SPI so SCK, MISO and MOSI are being used.This is the wiring I am using for the RA module, MP3 Module and the MKR.

I know that the MKR has pins 0 and 1 as the interrupt pins and switching between those doesn't work.

Since I am using the breakout portion of the MP3 player, that is why I connected it to the MKR and it worked.

 

VS1053MKR1000
5V5V
GNDGND
Breakout ResetReset
SCK139
MISO1210
MOSI118
MCS71
DCS65
CardSC44
DRQ30
RA8875MKR1000
5V5V
GNDGND
SCKSCK9
MISOMISO10
MOSIMOSI8
CSCS6
RST2
INTINT3

 

Once I am able to make these all play nicely then I will be able to use the image files and place them on the screen and then learn now to trigger a touch to play the appropriate wav file.

This challenge has really taught me the value of research, which forums do not help at all and trial and error will get you results in the end! It didn't stop Thomas Edison from inventing the light bulb after thousands of tries, it wont stop me either!

  • in reply to shabaz

    Hi Shabaz,

    I have been helping a disabled friend of mine so I wasn't able to test anything the past couple of days.

    I have school today and will work on this when I get back. Like I told James, I will be getting a battery for the MKR1000 to see if that will help and test voltages when each device is connected to the MKR.

    I will let you know what I find out.

     

    I will also be getting tri-state buffers today in the event it is not a power issue.

    Thanks for following up!

  • in reply to aspork42

    Hi James,

    I am using the USB cable. Perhaps the MKR1000 unit does not provide as much power as the UNO.

    The sketches work fine on the UNO when the RA8875 and VS1053 are connected to the UNO.

     

    I ordered and will be receiving a battery that will connect to the MKR1000 to see if that helps with the power issue and will check voltages today to see if that could be the problem.

     

    Thanks for your input!

  • in reply to shabaz

    Hi Rob,

     

    Do you have an update? I agree with James, it is very likely to be a supply issue. The display uses a fair bit of current, and maybe the VS.. board pushes things over the edge during initialization, The display alone will be very close to the limit if you're operating all this from a USB cable from the Arduino.

  • in reply to shabaz

    Rob - what power supply are you using? Is it just plugging into a computer or using a wall-wart? Do you know how may amps (or milliamps) the supply is rated for?

     

    Your code looks like it just stops when it fails to connect via the "while(1);" line; so that could be the reason why things stop functioning after that point. The code just goes into an infinite loop until the controller is power cycled.

  • in reply to roborob1266

    Hi Rob,

     

    At least it is isolated to a single function call, it should be possible to examine the source code for that function, to see what is going on. Basically, you may need to make edits to the driver code. I'm not a frequent Arduino user so I can only help generally, not specifically unfortunately, but if you have access to the library code (i.e. if it isn't a compiled library which you cannot modify) then that would be the place to look.