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Asked — Edited

Sparkfun Mp3 Trigger V2

I am having a problem with the MP3 trigger.
I have it connected like the video, but it does not want to play with EZ-B.
I have connected the external power and speaker, and tested out the MP3 trigger and it works. Red Power light is on and green lights blinks like it should.

When I connect it to the EZ-B and set it up the Red power light comes on but the green light never blinks nor does it play.

I have connected the MP3 to external power and connected only the white wire to the EZ-B. The Green light goes crasy I think it is playing the different MP3 that I have on the sd card, but it is playing only a second then play the next, and the next so forth and so on. This before I even setup ARC for the MP3 Trigger.

to get the MP3 Trigger back to normal I have to remove the white wire from the EZ-B and turn off the power.

I beleive that I am runnung the most updated ARC and Firmware for EZ-B.

The wires are setup white wire to RX, Red wire to USBVVC, Black wire to Ground.

Have I missed a step? or damaged something on the MP3 Trigger?

Thanks for any help you can give me.

Ireland
#1  
@hillcrest1297
Not sure if I can solve your problem but I have used the MP3 TRIGGER and it works ok on ezb


I presume you changed over the power source switch ( external to usb)
If it works ok on external power source,I would disconnect the white wire then you have +5volt & ground to board then it should power up as normal with the green led flashing as per manual,if thats ok .I would connect a servo motor to that output of ezb and ensure it works ok.

It cannot change track with only white wire connected,as it requires the red & black also.

ps check you have no short in soldered connections to mp3 trigger
#2  
@BRAVIA

That was it I did not change the switch to usb to tell you the truth I did not see the switch.

Thank you for your help.
Ireland
#3  
Have fun its a super kit
Please do not connect audio output to any device( eg external amplifier) except a small speaker without reading notes on sparkfun site as there are grounding issues with card ,it needs to be isolated
#4  
Does anyone know if there'd be a problem connecting the MP3 trigger to a small battery-powered speaker? It's not an amplifier in the traditional sense, but it does amplify sound.

I'm going to try to use this:

http://www.amazon.com/gp/product/B004OA733E/ref=pd_lpo_k2_dp_sr_1?pf_rd_p=486539851&pf_rd_s=lpo-top-stripe-1&pf_rd_t=201&pf_rd_i=B000OCPUFY&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=1YY8FJY0XHTPW18SGSNE

The sparkfun tech didn't think there'd be a problem with a direct hook-up, but he wasn't familiar with the grounding issue either.

Frank
United Kingdom
#5  
While I haven't used the MP3 board, or even looked at it to be honest, I can't see there being a problem using that speaker. Sound level may be an issue, it depends how loud that speaker can be.
Ireland
#6  
@ftlum
Please take care when connecting any type of amplifier to output
The MP3 trigger Data sheet on Sparkfun site outlines examples of isolators.


I Speak from experience !
#7  
Bravia, have you had a problem with a small battery powered speaker like the one I linked to above? Also someone one the sparkfun site mentioned a Radio Shack fix. Do you know what part they're referring to?

Frank
#10  
Is there any point to using Sparkfun MP3 trigger with the new EZ-B v4? It seems like the EZ-B now provides that function.

thanks,

Frank
#11  
Not at all Frank. I first had a MP3 Trigger installed in my B9 and pulled it out when my V4 arrived. It's a lot simpler to put sound files in a folder on your laptop and pick them with ARC then the way needed to play them from the MP3 Trigger.
PRO
Synthiam
#12  
Sounds like you have only two wires connected. The Mp3 Trigger needs power, gnd and signal.

As dave suggests, I would can the mp3 trigger and use the audio streaming feature of the ez-b v4.