I like this design-refreshingly simple and flexible. When testing your prototype, could you confirm that the output of the MP3 module is flat across the audio spectrum when loaded with a typical line output load? Perhaps you could connect a 1k load to the line output during testing. I also think a white noise recording would be useful. Thanks again for sharing such a great project idea!
Very good idea. Sounds like the mp3 library has improved since I tried to use it … many moons ago. It always wanted me to hop through tracks one at a time rather than jumping directly to the one I wanted. Keep up the great work guys 😀👍
Would this project be suitable for a beginner who hasn't programmed anything for a few decades 😵💫 never used an arduino but, thanks to you and our friend flux 😉, can now solder ?
Great video and an excellent learning exercise for someone like myself who considers themselves a rank amateur. I am lucky enough to have a TTI TG 1010 10 mhz function generator which has external triggering for my scope. I'll look forward to building this project as, to be honest, this sweep generator looks as if it could be a little more convenient than the TG 1010 which is incredibly flexible but can be a bit cumbersome to set up for a quick test. Thanks again.
The quality of your sine wave will be poised by the "quaity" of the mini-player DAC. Curious to see the signal on an oscilloscope, but in my opinion, it will look a bit distorded
Hi. What could you recommend if I would like to tune my analog FM radio but has no old analog audio sweep and other oldies. Have however digital scope with FM signal generator. How can I tune my radio with that?
I cry again Rick, change number required to 10. Same price. I would have added four buttons on the PCB, for the MP3 Player control pins, just because they are there.
you also need to make it go in reverse so go from low to high then without a pause from high to low and without pause repeat !!! when you re-invent it then do it right !!!! and make sure this module has the same amplitude in the whole frequenty range if that is not the case then it is still useless !!! the audio out of that module needs the have the same amplitude from lowest to the highest... end when you want to test power amps you need it to go up to 3.5 volts !!!! as you need to be able to test the high power inputs !!!! and this is not a sugestion this is a must !!!! so please Richard listen to me this is really a must !!!
Yeah this is the prototype as I mentioned at the end of the video and I will publish the shared project as soon as we can check the PCBs are good. The code is almost complete now and tested, just need to add the volume function the rest is working
I think Rich mentioned that everything, including the sound files, will be released together, when the boards are ready for release. I'm excited too! A great easy project!
I like this design-refreshingly simple and flexible. When testing your prototype, could you confirm that the output of the MP3 module is flat across the audio spectrum when loaded with a typical line output load? Perhaps you could connect a 1k load to the line output during testing. I also think a white noise recording would be useful. Thanks again for sharing such a great project idea!
Very good idea. Sounds like the mp3 library has improved since I tried to use it … many moons ago. It always wanted me to hop through tracks one at a time rather than jumping directly to the one I wanted. Keep up the great work guys 😀👍
Radical simplicity. Very good
An MP3 Player ! awesome !
Would this project be suitable for a beginner who hasn't programmed anything for a few decades 😵💫 never used an arduino but, thanks to you and our friend flux 😉, can now solder ?
Great video and an excellent learning exercise for someone like myself who considers themselves a rank amateur. I am lucky enough to have a TTI TG 1010 10 mhz function generator which has external triggering for my scope.
I'll look forward to building this project as, to be honest, this sweep generator looks as if it could be a little more convenient than the TG 1010 which is incredibly flexible but can be a bit cumbersome to set up for a quick test.
Thanks again.
Heya, that looks like a very nice project and a must have wen you are doing audio repaires but 1st I need a good ossiloscoop lol
Nice one.
4:56 - Richard, what is the software you are using and can you edit Gerbers with it?
The quality of your sine wave will be poised by the "quaity" of the mini-player DAC. Curious to see the signal on an oscilloscope, but in my opinion, it will look a bit distorded
I said in the video that we already tried this on the live stream on Sunday with a scope and the link is in the video description 😵💫
Hi. What could you recommend if I would like to tune my analog FM radio but has no old analog audio sweep and other oldies. Have however digital scope with FM signal generator. How can I tune my radio with that?
I cry again Rick, change number required to 10. Same price.
I would have added four buttons on the PCB, for the MP3 Player control pins, just because they are there.
you also need to make it go in reverse so go from low to high then without a pause from high to low and without pause repeat !!! when you re-invent it then do it right !!!! and make sure this module has the same amplitude in the whole frequenty range if that is not the case then it is still useless !!! the audio out of that module needs the have the same amplitude from lowest to the highest... end when you want to test power amps you need it to go up to 3.5 volts !!!! as you need to be able to test the high power inputs !!!! and this is not a sugestion this is a must !!!! so please Richard listen to me this is really a must !!!
Add more !!! !!!
what program are you using?
Could you add a synch tone/dual tone to the recording
Can't seem to find it on pcbway
How about a link, or have I missed something obvious.
Yeah this is the prototype as I mentioned at the end of the video and I will publish the shared project as soon as we can check the PCBs are good. The code is almost complete now and tested, just need to add the volume function the rest is working
Excuse me, where are the sound files for download ?
I think Rich mentioned that everything, including the sound files, will be released together, when the boards are ready for release.
I'm excited too! A great easy project!
@@darrenbird2526 thank you very much. I had been a little bit unconcentrated and english is not my mother tongue 🖖🐻
@@darrenbird2526 Correct. Also I can now add that the software is written and working, just need to add the volume control function
@@LearnElectronicsRepair Thanks Rich, I love and appreciate all your projects and the time you put in to designing them for us! Cheers.