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Topic: Your latest purchase (Read 118 times) previous topic - next topic

codlink

Would be willing to go in on a minimum of 5, maybe 10.  Would be willing to help with the hardware as I am not confident on the software.  PM me and we can exchange emails.
//LiNK

Coding Badly

Note that the IO pins are 3.4V only, need voltage leveling to use. But it has USB and UART IO which I'm pretty sure that USB is always 5V and I think (please help here!) that UART is the same 5V as our serial and software serial.


No.  From the datasheet...

Quote
Voltage at Any Digital Input Min: -0.3 Max: IOVDD+0.3 1 V
1 Must not exceed 3.6 V


It looks to me like the chip / board takes a 3.9 V to 5.5 V supply which is regulated to 3.6 V.  I think it would interface well with a 3.3 V board.


@GoForSmoke, what is the minimum number you want to deal with?

GoForSmoke

I would have to find a way to get 100 at 5 Euros each plus any shipping.
That's already stretching it. I won't be asking for money up front.

If someone else with deeper pockets that wants a majority of the pieces wants to do the buy then I would hope to buy from them.

Looking on the web just now I see 5 Euros is US$6.42. I think that it packs a lot for that price.

Arduino will run 8 MHz on 3.6V won't it? I'd also be looking at if these things can simply be hooked up to button circuits as stand-alone.

I think that a guy like you would also be interested in a book like this:
http://www.vsdsp-forum.com/phpbb/viewtopic.php?f=11&t=36
Quote
The book compiles together a lot of information, which otherwise would be difficult to piece together from different sources, such as datasheets, application notes and C header files. For example, it tells how to use all of the 22 input and/or output pins of the VS1053. The book explains the structure of the VS1053 audio path and teaches how to write VSDSP interrupt handlers in both assembly and C language. All of the examples use VSIDE, with step by step guide on how to obtain, install and use the graphical development environment.


In my current ongoing state it would put me to sleep but maybe some day again I could use the like of it.

Nick Gammon on multitasking Arduinos:
1) http://gammon.com.au/blink
2) http://gammon.com.au/serial
3) http://gammon.com.au/interrupts

Chagrin


GoForSmoke

Yes, I have already only I spent closer to 5 buying factory-direct. You know code and wiring that works for those by any chance? I don't. My docs are the chip datasheets and app notes that don't tell the module board so I have the same trouble that many do.

But that's not all. That unit has no SD or internal flash at all though yes, a better chip.

10 Euros for that as opposed to swinging a deal to get complete packages for 5 Euros.....
Nick Gammon on multitasking Arduinos:
1) http://gammon.com.au/blink
2) http://gammon.com.au/serial
3) http://gammon.com.au/interrupts

Bajdi

I also have 2 of those VS1003 modules. I've found several Arduino libraries and code for that module but I can not get it to play an mp3 from an SD card. I can get it to work in midi mode though with the library from Maniacbug. (Maybe we should start a new topic about the module.)
www.bajdi.com

GoForSmoke


I also have 2 of those VS1003 modules. I've found several Arduino libraries and code for that module but I can not get it to play an mp3 from an SD card. I can get it to work in midi mode though with the library from Maniacbug. (Maybe we should start a new topic about the module.)


If you could then please, I don't get a peep out of the things. Maybe I burned them up for all I know.

I'll keep an eye out in the audio forum but if you could PM when/where you start then I would appreciate that.
Nick Gammon on multitasking Arduinos:
1) http://gammon.com.au/blink
2) http://gammon.com.au/serial
3) http://gammon.com.au/interrupts

Coding Badly

I would have to find a way to get 100 at 5 Euros each plus any shipping.


What is the minimum number you want to deal with per person?  Hypothetically, would you be willing to repackage and ship me one?

Coding Badly

Arduino will run 8 MHz on 3.6V won't it?


The processor seems to run fine at 16 MHz / 3.3V (though I wouldn't use it under those conditions to control anything that could cause damage).

Quote
I think that a guy like you would also be interested in a book like this:
http://www.vsdsp-forum.com/phpbb/viewtopic.php?f=11&t=36


Thanks.

GoForSmoke


I would have to find a way to get 100 at 5 Euros each plus any shipping.


What is the minimum number you want to deal with per person?  Hypothetically, would you be willing to repackage and ship me one?



Why not? I expect to wind up with some singles, I just can't hang onto to many for long.

At this point I am just testing waters.


Nick Gammon on multitasking Arduinos:
1) http://gammon.com.au/blink
2) http://gammon.com.au/serial
3) http://gammon.com.au/interrupts

Jantje


At this point I am just testing waters.

I looked at the module and I'm a bit puzzled. If I understand it correctly this module can play 20 minutes of audio from internal flash  :smiley-yell:
That would be more than enough for most of my projects to give back audio feedback.
But this module has so many pins  :smiley-eek:? How many control pins from the Arduino would I need if I wanted to play <=255 files at arduino command?
What would I need to get the files in the flash?
If it would be less than 5 pins: I'm in for at least 20 of those at 5 euro each plus transport.  :smiley-mr-green:

Best regards
Jantje

ps As the pins are not 5 volt tolerant some cheap bulk logic translators would make it a service deal  XD
Do not PM me a question unless you are prepared to pay for consultancy.
Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -

GoForSmoke



At this point I am just testing waters.

I looked at the module and I'm a bit puzzled. If I understand it correctly this module can play 20 minutes of audio from internal flash  :smiley-yell:
That would be more than enough for most of my projects to give back audio feedback.
But this module has so many pins  :smiley-eek:? How many control pins from the Arduino would I need if I wanted to play <=255 files at arduino command?
What would I need to get the files in the flash?
If it would be less than 5 pins: I'm in for at least 20 of those at 5 euro each plus transport.  :smiley-mr-green:

Best regards
Jantje

ps As the pins are not 5 volt tolerant some cheap bulk logic translators would make it a service deal  XD


You know more EE than I am ever likely to, but here goes:

From descriptions at VLSI Solutions (Finland, I find that delicious) these DSP chips incorporate microcontroller capability in themselves. That would explain need for pins?
MCU's? They don't need no stinking MCU's! (with no apologies to Mel Brooks)

There is also the multiple interfaces.

IIUC the site, you can copy SD card to internal flash and back.

For better answers, here is the site forum:
http://www.vsdsp-forum.com/phpbb/

Level shifters --- I bet there's more than I have noticed, the 74HCT4050 looks to be "bomb"(extra good):
http://dx.com/p/jy-mcu-5v-3v-iic-uart-level-2-way-converter-module-adapter-178301
http://dx.com/p/jy-mcu-5v-3v-iic-uart-spi-level-4-way-converter-module-adapter-178286
http://www.futurlec.com/74HCT/74HCT4050pr.shtml
http://www.futurlec.com/4000Series/CD40109.shtml

Nick Gammon on multitasking Arduinos:
1) http://gammon.com.au/blink
2) http://gammon.com.au/serial
3) http://gammon.com.au/interrupts

Jantje

I found a dutch article where someone used it for a train. These modules are super cool.
You need an additional amplifier. The files can be selected in several ways (depends on the firmware) With a sd card that can hold files and a new firmware that looks pretty useful.
The Dutch guy stated the power of the amplifier caused issues he said the module is "sensitive"
Out of the box the firmware stops the playing sound when a new sound is requested. He changed the firmware so he could mix up to 4 sounds.
Yes I want some. you can count me in
Jantje
Do not PM me a question unless you are prepared to pay for consultancy.
Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -

Mad physicist

I just bought a lot of seven IV-16 numitron tubes on ebay. Looks like they were the very last available...


(Image from Tubehobby.)

They will serve as displays in my future streamline-styled (or so) weather station.

adrianf

Assortment of resistors (5000) pack. 200 transistors (BC548/549 etc). A new arduino Mega, LCD keypad a DDS-60, 10 prototype shields a breadboard a 35 amp power supply (for ham radio not Arduino)
Except the power supply and DDS-60 all bought from China for less than $80

Adrian

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