Louis T
I started testing some alternative MP3 Sound Modules, my goal to get similar functions but at 50% less than the cost of MP3 Trigger ($50 + s/h). This could help people with low budget that want to get into robotics or just wanted to build a low cost robot. I choose these two modules in theory from reading their data sheet should work with EZ-B thru very simple sendserial command already built into ARC:
This MP3 module im testing and is working very well with EZ-B, it supports 40 MP3 files, 6 outputs:
This MP3 module supports 199 MP3 files and 8 outputs but I can't get it to work because it required baud rate of 4800 which ARC doesn't support but i would like to have it working because it supports 199 MP3 files and have better features than the above module:
However both modules needs an audio amplifier but for the price you can't beat for small to large robot projects that don't need a lot of sound files.
I have already got it working well with my Wall-E project, there is just one problem because the volume reset once power is disconnected so i found a way around that by using a init script at connection to change to max volume and a start up sound. All costs less than half price of MP3 Trigger
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Here is a rough wired pic using Wall-E own speaker, MP3 module, and a dual 3W amplifier. I will post more details soon but still i would like to be able to use the 199 mp3 module, nice thing is both module output stereo sound and you are not limited to small speakers, just use bigger amp for bigger speakers and blue color matching EZ-B board
More details on wiring and custom scripting coming soon...might make a demo video if i have some free time.
No worries,
These are just going into the Omnibots. I'll just use the digital on/offs as suggested.
Still a good cheap alternative MP3 module.
Gave it a whirl tonight. Very easy to setup and control with the .ezb file supplied in this thread.
Definately need an amp to use. I'm waiting for my amps to arrive but tried it direct to my Omnibot speaker. You can just barely hear it. Very easy to send serial commands and control.
Recommend to anyone looking for a simple MP3 playback module. $16.95
Now to create some random sound scripts.
Awesome! Glad it's working for you. Yes the amp is a must the module itself doesn't have built-in amplifier, The first time i thought it wasn't working until i put my ears against the speaker, then i was so excited it worked and knew i needed an amp.
Good thing is you get to choose your amp and speakers size what suits your robots. Best thing is even with amp still cheaper than MP3 Trigger, speaker is free from your robot/toys usually
If you get a chance to get the random sound script done, can you post it? Thanks.
I should make a breakout board with a headphone jack and an amplifier on it for this mp3 player
fairly simple circuit DJ a op amp and few componets.i a higher speaker out is needed,better to get it on ebay
about the DFRduino Player for $25 i found out it does serial and true I2C buss plus not limited to 40 or 199 MP3 songs,can play as many that will fit on a SD CARD
robotmaker...do you have data sheet for DFRduino?
here is the WIKI site and robotshop has other info on it and datasheet mp3 player
mp3 player at robotshop at robotshop its $29.95 at other places its $25
$24.95 mp3 player
Are these mp3 players usable with EZ-B without any special scripts or codes ?