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Clock Loop
=MC²

Date Joined Jun 2005
Total Posts : 699

Posted 8/15/2009 8:19 PM (GMT -7)

TheBlackBox: Release v2.0 - Propeller HSS FX/Sequencer with Digital Audio SPDIF output.

This is to announce v2.0.
Major changes, are use of a single eeprom and crystal.
Improved programming / commenting.
More videos of TWO black boxes operating together using the clock sync feature(new in 2.0)
-future input of accelerometer, theremin, and piano interface. Plus other input methods.
-uses VIEWPORT as a tool to do diagnostic and virtual interfacing.
-each prop communicates at 250Kbps using the "fullduplexserial" object.

Description: Propeller BlackBox Audio Sequencer V2.0
This device is an audio waveform creation and 32 step sequencer.
(for musicians, mostly electronica dj's) (aka... bassline sequencer, drum machine, 303, 909, etc.)
This device creates audio, it does NOT accept audio INPUT. (yet)

Features:
-Live fx mode to allow direct output of the current waveform set by 12 different potentiometers.
-The sequencer allows the fx to be loaded into any one of 32 steps in the sequencer.
- SPDIF audio output or analog output via a switch (not both at the same time)
- analog output to a monitor(at the same time as spdif/analog output above (headphones or studio speakers) to allow auditioning before outputting live.
- 3 encoders that allow - BPM, main volume, and BPM jumps(1/3, 1/2, 1/4, 3/4, 2/3) and a switch for jump direction. (main volume and bpm jump programming not complete yet)
- BlackBox to BlackBox CLOCK sync, input rca, output rca.(serial @ 150Kbps, works over 1 foot rca cable) (this is so many of these devices can be connected to one main BEAT CLOCK MASTER.)
- 32 LEDS are used as sequencer step indication, ALONG with using the 32 LEDS as buttons to load waveform
- 2 leds that start/stop the sequencer and live fx waveform.
- fully open source that uses the HSS code to generate the audio.

Schematic: See attachment BlackBoxV2.pdf

Block Diagram See attachment BBv2Block.pdf
- AudioSequencer(U1) prop uses all 8 cogs and has 18 I/O free.
- PotReader(U2) prop uses all 8 cogs and has 6 I/O free.
- LedReader16(U3) prop uses 5 cogs and has 8 I/O free.
- LeadReader32(U4) prop uses 5 cogs and has 4 I/O free.

Source Code:See attachment BlackBoxV2.zip fully commented.

Bill of Materials:
4- propeller chips, U1, U2, U3, U4
34- LEDS
1-tri color led. (common anode)
12- 1.5uf tantalum capacitors
12- potentiometers, I have used 20k and 100k, requires small programming changes
3- quadrature encoders
7- switches(on/on)
3- 1/8in stereo plugs
3- rca jacks
1- 5mhz crystal
1- 32kb eerpom (I used 256kb- (24lc256)
20- 10k resistors
4- 1k resistors
16- 470ohm resistors
2- 220ohm resistors
3- 560ohm resistors
2- 22ohm resistors
2- 10ohm resistors
12- 0.1uf nonpolar caps
2- 10uf polar caps
1- BlackBox(or any color you like to hold it all)
1- 3.3v power supply. (500ma)
!- Lots of wire, time and solder.

Pictures and Video: See Attachment:
BlackBoxV2Face.jpg
BlackBoxV2Inside.jpg(see post with viewport image attachment)
BBv2plugs.jpg

YoutTube videos:
Video demonstration of two black boxes, one controlling the other using the clockin/clockout located on prop U4. v2.0
www.youtube.com/watch?v=d6xiQUrkHj8&feature=PlayList&p=0C1CD6112E208114&index=2

Prior videos of a single box running v1.0
www.youtube.com/watch?v=okM2F6MLqdU
www.youtube.com/watch?v=NF1m7U_kBpA
www.youtube.com/watch?v=9qvSWtwnr_Y
www.youtube.com/watch?v=pX1QCD6xmJo

Really old videos: Prototype.
www.youtube.com/watch?v=9Jmz5LirTjs
www.youtube.com/watch?v=nMg8yLtOkA0

TERMS OF USE: MIT License

"Permission is hereby granted, free of charge, to any pers...........................
..............................OMITTED FOR FORUM...............................................
.................. OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. "

The dsp/fpga king is dead, long live the prop.

Post Edited (Clock Loop) : 3/7/2010 12:22:34 PM GMT

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Clock Loop
=MC²

Date Joined Jun 2005
Total Posts : 699

Posted 8/15/2009 8:20 PM (GMT -7)

Image of v2.0 inside. Handwire.

forums.parallax.com/forums/attach.aspx?a=40045

*********OLD VERSION***********
****THIS POST IS FOR V1.0

*** IF ANYONE NEEDS TO CONTACT ME, YOU CAN DO SO VIA EMAIL: ThereIsNoElectron (at) gmail (dot) com

link to thread in the prop sub forum. --> http://forums.parallax.com/forums/default.aspx?f=25&m=364607&g=376391#m376391

WATCH THESE VIDEOS TO SEE WHAT ITS ALL ABOUT.

www.youtube.com/watch?v=okM2F6MLqdU
www.youtube.com/watch?v=NF1m7U_kBpA
www.youtube.com/watch?v=9Jmz5LirTjs
www.youtube.com/watch?v=9qvSWtwnr_Y
www.youtube.com/watch?v=pX1QCD6xmJo

The hard work done by the HSS developer, http://www.andrewarsenault.com/hss/
and his choice to give the code away for free has spawned this monstrosity.

This project uses:
4 props, (4 - .075uf bypass caps 4 power pins)
4 - eeproms
4 - crystals
12 - 80k Potentiometers (you can substitute)
1 - quadrature encoder, (bpm)
34 - LEDS
4 - 56ohm resistors,
12 - 0.015uf caps, (104 ceramic)
12 - 330ohm resistors.
handfull of 1k ohm resistors,
hand full of - 10k ohm resistors
3 - 560ohm resistors
1 - tricolor led
2 - switches,

3 - 1/8in audio jack.
1 - RCA jack
1- 3.3v regulator

An enclosure case, and a power supply. (300ma 6vdc)

PROP 1: 8 cogs used.
-runs 1 analog HSS engine. - 2 cogs
-runs 1 analog or digital HSS engine. - 3 cogs (if digital 3, analog 2)
-runs sequencer, reads switches, runs fx. - 1 cog (heartbeat led runs in sequencer loop.)
-talks to prop 2 (full duplex serial 115200) (potientiometer prop) - 2 cogs. Sends beat. Gets Fx/leds/encoder
- 4 I/O for audio
- 6 I/o for switches
-2 i/o for serial
-1 i/o for heartbeat

PROP2 - 8 cogs used.
- talks to prop 1 (full duplex serial 115200) audio prop. Sends fx potentiometers, sends led states, sends encoders. - 2 cogs. Gets beat.
- talks to prop 3 (Gets 1-16 leds)(fx start, seq start) Sends beat - 2 cogs.
- talks to prop 4 (Gets 17-32 leds, encoders) Sends beat. - 2 cogs.
- reads frequency, LFO pots. - 1 cog. (for a more fluid response, only 2 are read)
- reads all other pots - 1 cog.
12 - i/o for potientiometers
6 - i/o for communications

PROP3 - 6 cogs used
- heartbeat led - 1 cog
- reads and lights FxStart - 1 cog
- reads and lights SeqStart - 1 cog
- reads and lights 1-16 leds when beat changes. - 1 cog
- communicate with PROP2 (full duplex serial 115200) sends 1-16leds, fxstart, seqstart. Gets beat. - 2 cogs
21 - i/o for leds
2 - i/o for comms
1 - i/o for heartbeat

PROP4 -6 cogs used.
- heartbeat led - 1 cog
- reads encoders - 1 cog
- reads and lights 17-32 leds when beat changes. - 1 cog
- communicate with PROP2 (full duplex serial 115200) sends 17-32leds, encoders. Gets beat. - 2 cogs
***- reads and sends midi beat sync - 1 cog. ***FUTURE***
17 - i/o for leds
2 - i/o for comms
2 i/o for midi
2 i/o for bpm encoder (i have 6 i/o for 3 encoders)
1 - i/o for heartbeat

*********OLD VERSION***********

Post Edited (Clock Loop) : 3/7/2010 1:09:57 AM GMT

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GWJax
Registered Member

Date Joined Mar 2008
Total Posts : 262

Posted 8/16/2009 8:58 AM (GMT -7)

Nice free hand work on the internals. Plus great job!! Now all I have to do is download your code an take a peek inside. I love the video's you provided a very nice touch to your completed project post..

Jax

If a robot has a screw then it must be romoved and hacked into..

Manetheren
Registered Member

Date Joined Feb 2009
Total Posts : 120

Posted 8/17/2009 4:18 AM (GMT -7)

What is the purpose of this project? What does it do?

Tia'Shar Manetheren

Clock Loop
=MC²

Date Joined Jun 2005
Total Posts : 699

Posted 8/17/2009 4:47 PM (GMT -7)

Manetheren said...
What is the purpose of this project? What does it do?

Watch the videos that are at the beginning of this thread.

If you still don't get it, look up something called a drum machine, a synthesizer, and a sequencer.

Manetheren
Registered Member

Date Joined Feb 2009
Total Posts : 120

Posted 8/18/2009 4:18 AM (GMT -7)

I cannot watch videos from my computer. Thanks for the info.

Tia'Shar Manetheren

skylight
Registered Member

Date Joined Mar 2007
Total Posts : 484

Posted 8/18/2009 7:02 AM (GMT -7)

nice use of the leds as touch sensors

mikediv
Registered Member

Date Joined Dec 2007
Total Posts : 819

Posted 8/18/2009 9:51 AM (GMT -7)

Clock Loop.. awesome its a good demonstration on how to use multiple props as well , very nice

Clock Loop
=MC²

Date Joined Jun 2005
Total Posts : 699

Posted 8/18/2009 4:50 PM (GMT -7)

GWJax said...
Nice free hand work on the internals. I love the video's you provided a very nice touch to your completed project post

Thanks! No project is complete without multimedia + code + schematics.

skylight said...
nice use of the leds as touch sensors

Thanks, the prop makes it easy.

mikediv said...
Clock Loop.. awesome its a good demonstration on how to use multiple props as well , very nice

Thanks, Yea, my method of prop communications isn't the greatest, but it works.

I basically just blast the values over the serial, and on the receiving prop I have it look for the start number "say 113" and then after it sees that number, it starts to capture all the data after it for a certain number of bytes. Its pretty simple and allows me to transmit at 115200 baud. Although I use 2 pins for the serial I/O, it could be done with a single pin. This is because I do not use 2 cogs to transmit and receive the data, I do the TX and RX sequentially.

Overall this design could improve:
(use a single eeprom, and clock all props from a single master prop.)
Re-use the TX and RX lines between props as a way to upload the boot program from the master prop, plus do the serial communications on the same lines, after the boot program has been uploaded.

I am sure the code could use major enhancements also...

This first revision is the hard and dirty working v1.0

This is the result of an EE who is out of work due to the financial terrorism that the federal reserve and federal government have chosen to inflict on the hard working class.
I.E. my job canned me due to cut backs. (insult to injury, the state refused my unemployment claim over a technicality) (combine that with the housing market prices....which resulted in my foreclosure, etc...) Its a horrible time to have lost a job, and owned a house. Wheres my bailout?

Post Edited (Clock Loop) : 8/20/2009 3:15:17 AM GMT

Clock Loop
=MC²

Date Joined Jun 2005
Total Posts : 699

Posted 2/26/2010 7:25 PM (GMT -7)

This post is to announce v2.0

See first post in this thread.

The file attached is the viewport output.

Nothing special yet.

I don't understand viewport very well yet.
But I hope I can include a virtual interface to the black box using viewport.

The image attached is the second box that was also made by freehand wiring.
This would have been done with a pcb if funds were not limited.

Post Edited (Clock Loop) : 2/27/2010 5:51:10 AM GMT

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Oldbitcollector
Propeller Powered

Date Joined Mar 2007
Total Posts : 4328

Posted 2/27/2010 9:58 AM (GMT -7)

Awesome project!

I'm even more impressed by your use of solid core twisted pair to wire your project.
As a computer technician, I have quite a bit of RG58 here which I've tried to use and
have had it break internally making it a pain to locate a faulty connection.

You appear to have had much better luck with it than I have. :)

OBC

New to the Propeller?

Visit the: The Propeller Pages @ Warranty Void.

Clock Loop
=MC²

Date Joined Jun 2005
Total Posts : 699

Posted 2/27/2010 1:44 PM (GMT -7)

Oldbitcollector said...
I have quite a bit of RG58 here which I've tried to use and
have had it break internally making it a pain to locate a faulty connection.

You appear to have had much better luck with it than I have. :)

OBC

You have to pull all the wires out of the plastic at once. DO NOT USE THE STRING.
Then separate them carefully. The bundle of wires along with the string tears the plastic.
But the string alone will kink wires and pull them, possibly causing internal breaking.
It depends on how old and abused it is. My stuff is from an office, about 10 yearold cat5.

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