
Hillcrest1297
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.
@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
@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.
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
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
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.
@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 !
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
If I were connecting any battery powered speaker to MP3 Trigger I would put a ground loop isolator in between . simliar to
http://www.ebay.com/itm/MINI-3-5MM-NOISE-FILTER-GROUND-LOOP-ISOLATOR-CAR-AUDIO-Ships-from-USA-/110951520870?pt=US_Car_Audio_Video_Interconnect_Cables&hash=item19d539da66
Normally when we see ground it refers to o volts ,but this is not the case with this Mp3 Trigger card