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Sve i svašta
Igre mogu da pocnu Wink


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Šta to mućkaš Teslašine?
Neko pojačalce sa BT prijemnikom? Smile
Face up...make your stand and realise you're living in the golden years!
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Aha Smile

Narucio za test
Pa da vidimo sta i kako za sada ima nekih nelogicnosti oko napajanja po standardnoj semi na netu bukvalno napajaju ovaj modul kroz regulaciju ya punjenje baterije.

LINK Forum

Quote:Hi all,

Referring to the several pinout pictures and schematics that have been posted here, I have some information based on my own experience with this little module. I am using the XS-3868 V3.0 board.

1) the R-C network connected to the RST pin is a reset circuit. It slowly charges the capacitor thru the 10K resistor, causing the RST pin to initially be "low" when the power is applied, and after a while, the capacitor voltage increases to the "rail" voltage, V1.8, and then it stays there. I have to presume that the RST pin is actually active "low" so when power is applied, the OV3860 stays in reset for a bit, then is allowed to run.

I have found, in my case at least, that this isn't necessary. However, it may need to be there for every unit to reliably come up.

2) I too have this "crackle" noise (sounds a bit like static or ignition noise on an old AM car radio) during the quiet/silent parts of the music, but as someone else has observed, just placing one finger on the little antenna trace area quiets it down to zero without affecting playback, at least no effect at the range of a few feet. I will have to experiment with resistor/cap networks to see if a sweet spot can hack this into submission without application of the finger!  [Image: cheesy.gif]

3) this board is meant to integrate a LiION battery charger. That's what the Charge.Pwr pin is for; you put your charging voltage in there, and the chip will then supply charge current to the battery. Now, I didn't intend to use a battery, so I omitted it, but I did put the electrolytic cap as indicated. The cap ends up being the power supply for the whole thing, but your external power should go into the Charge.Pwr pin, not the V.Batt pin. I used 5v coming off a hacked USB cable, for convenience (you can plug it into a cell phone charger, your computer USB port, etc). This seems to work just fine! I think providing anything less than 5 volts to the Charge Power pin, and/or not including the large electolytic cap across V.Batt and ground, will cause the chip to not work correctly.

4) contrary to popular opinion, this little board both transmits and receives BlueTooth! The pause/play, next, previous buttons are part of the Remote Control profile. Implementing these buttons transmits commands back to the music source that you've paired to. However, it is true that this chip will only serve as a "sink" (ie, "receiver") for AADP (Advanced Audio Delivery Profile ?) aka A2DP, aka "playing your music from your phone to this little board".

That's all I know right now. Will post an update if I fix the static-y noise issue during silences.

[url=www.eevblog.com/forum/beginners/bluetooth-audio-someone/][/url]

Za sada semica izgleda ovako Wink


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Cool! Smile
Javi obavezno kako napreduješ.
Face up...make your stand and realise you're living in the golden years!
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Evo nečeg zanimljivog. Smile
http://www.computerhistory.org/timeline/
Face up...make your stand and realise you're living in the golden years!
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(11-02-2016, 03:43 PM)TDA Wrote: Evo nečeg zanimljivog. Smile
http://www.computerhistory.org/timeline/

Eh, koliko je to daleko otislo ... Evo kako se "gadjaju" sa telefonima i drugom elektronikom na kilo u Shenzhen "silikonskoj dolini" ...

https://www.youtube.com/watch?v=SGJ5cZnoodY
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Zanimljiva emisija.
Hvala Miki! Smile
Face up...make your stand and realise you're living in the golden years!
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Lično sam se uverio u to. Čak su mi u jednom od ovakvih shopova sa početka ovog filma, uvalili neke fake proizvode. A ja mislio da sam im dobro ubio cenu Big Grin . Grad je neverovatan. To je bio malo mesto a onda su kinezi rešili da tu podignu grad koji će da parira Hong Kongu koji je preko puta. Bio sam pre 8-9  godina i tad su mi govorili da ima preko 12 miliona stanovnika.
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Svaki put malo popi*dim kad čujem da je kupljena neka od starih i proverenih fabrika poluprovodnika!

Još prošle godine je Fairchild kupljen od strane Infineon, a pre mesec dana International Rectifier je kupljen od strane ON Semiconductors.

Ne zna se više ko koga!
Globalizacija u punom zamahu...
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... a Analog Devices je pre par meseci kupio Linear Technology...
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[attachment=21680]Ne zna se "Čiji je u čijoj"-kapital tvornici.- Zato cu morati da popijem caj!


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NXP (Philips) je kupio Freescale (bivša Motorola) prošle godine da bi Qualcomm pre mesec dana kupio NXP.
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SAMWA i SUNMA detalj iz kineske radnje  Huh
Koji kraljevi  Big Grin
650 dindzi po komadu. Možeš da biraš marku.


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[Image: aaaaa3088d7ba67d46cd.jpg]


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Auuu stari zavet... šta je kaseta? video klub? ????
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Khm, evo za decicu...
[Image: amage.jpg]
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Izveo bosanac dalmatinku na veceru...
Ona: Dragi, ja bih dagnje...
ON: Draga,ne kaže se dagnje nego jagnje.---

pOz
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https://m.youtube.com/watch?v=GuCdsyCWmt8
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@gorankg
A, prvo su oborili avion gde su bili inženjeri Freescale, da slučajno ne prebegnu u drugi tabor Wink
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Mene je oduševilo ono naparavanje u vakumu! Posle prvog minuta.
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