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Messages - voidptr

47
General discussion / Re: Ugly Hacks
[quote author="matseng"]Haha, nice patchwork there.  From the color coding on the wires it looks like you used a 25-pair telephone cable - they usually are very prone to snap off at the solder joint when bent a few times. Had any problems with that?[/quote]

yep phone wires ...
i was also wandering if they soldering will fail too, until now no,  since a made i just "open and close" it 4 or 5 times and i did it gently.
wire strenght  give a core to both boards, so i don't have a case, only 2 tieraps on the top ... i will take a more recent pic i add few things since the last picture was taken ...

For The Big Blob of Glue, i did recently bought few color glue sticks and but i didn't mix them up yet...  it could be even more artistic :o)
48
Bus Pirate Support / Re: new display format 'cause I'm lazy :o)
i did a quick hack of it with hex, dec, bin  (rx,rd,rb),  it is useful ! :o)
it could be more nicely integrated for sure ...

here a dump of a DS1307 clock

I2C>[0xd0 0x00 [0xd1 rx:3 rd rx:3 rb rx:56]                                   
I2C START BIT                                                                 
WRITE: 0xD0 ACK                                                               
WRITE: 0x00 ACK                                                               
I2C START BIT                                                                 
WRITE: 0xD1 ACK                                                               
READ: 0x14  ACK 0x21  ACK 0x17                                                 
READ:  ACK 4                                                                   
READ:  ACK 0x29  ACK 0x08  ACK 0x12                                           
READ:  ACK 0b00000011                                                         
READ:  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK
 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK
 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK
 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK
 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK
 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK
 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK 0x00  ACK
 0x00                                                                         
NACK                                                                           
I2C STOP BIT                                                                   
I2C>     


i did blow up my bootloader cause i used  my pickit3 to program it ... so no .hex to try ...
so for people who want to try, i can give you source files ....
49
General discussion / Re: Ugly Hacks
Someone told me it was a badest hack he saw since a while...
for me i find it  "kind of cool"  'cause i made it and it works  :o)

so there it is again My Flash Destroyer Hack...
it destroyed 1 eeprom,  and since it was transformed few months ago it is my desk clock ...
i used it few times for prototyping stuff  it has now many io available :-)



for details look here http://http://dangerousprototypes.com/forum/viewtopic.php?f=56&t=3394&start=15
50
Bus Pirate Support / Re: new display format 'cause I'm lazy :o)
[quote author="ian"]I really like it. When I do demos at maker faires it is always cumbersome to switch between modes to show words stored in an eeprom.[/quote]

other option 
rc  display as an ascii character.
51
Bus Pirate Support / new display format 'cause I'm lazy :o)
Of course I'm a lazy noob :o)
so there is a suggestion to help me and maybe others people who don't want to make conversion on a paper sheet :o)

a more versatile display function
let say we got this in i2c
[0xD0  0x00 [0xd1 r r] 

it could be so nice to chose the display format like this
[0xD0  0x00 [0xd1 rx rd]
where we add after the 'r' a display format 
r still display the default mode
rx  display hexadecimal
rb display binary
rd display decimal

:o)

i took a peek at the code and it seems not to difficult to implement and it could be really useful ...

what do you thing about this :o)
53
Sick of Beige / Re: Yet another alternate design
[quote author="arhi"]  ZAP
Anyhow what you can do is do not laser cut the top plate at all, get everything else cut out of acrylic (or whatever) and then make the top cover out of 0.5mm PP you can cut with scissors and exacto knife out of ice cream box cover or something like that :D[/quote]

That was what I had in mind, same king of plastic( i also use ice cream box :-) ,maybe someone can find a place who can punch out(with a cheap press probably) the same templates from that kind of workable plastic for a few pennies :o)

On the other side , eating ice cream is a good thing when prototyping :oP
54
Sick of Beige / Re: Yet another alternate design
here another thought :-)
can be nice to produce this in a more cheap plastic also .
acrylic look good but it is not so easy to cut fastly hole, sqaure  or forms in them to adjust top to our design.
so maybe having a more cheap workable plastic can help prototyping a custom top easily.
:-)
55
General discussion / Re: Pads, got some really weaks !
[quote author="arhi"]If you were pushing this into solderless breadboard, then it is ok for them to break off, those breadboards to require high pressure to get the pins in!!![/quote]

no i was using 6" jumper wires ... 
im waiting for seller response ...
56
General discussion / Re: Pads, got some really weaks !
[quote author="arhi"]that was not supposed to happen :(
soldering connector like that to the pads is not the best practice as pads are going to take too much strain but they should not just detach like in the picture :([/quote]

i agree !  this was just for a quick breadboard test.
headers would have been remove it the end product ..

me, i will never put pads for SPI bus !
(board has also pads for power and jtag )
57
General discussion / Re: current draw from small USB WiFi adapters
Interesting ! 
I always thought, those dongles were build to draw less than 150mA ...
I think I will have to make some tests to see how much my DLINK DWA140 draw when it has to connect a full power thought some walls ...
58
General discussion / Pads, got some really weaks !
I already solder few headers on pads and drag some other boards around without any problems...

but, I just got this ebay board and got a bad surprise,  I soldered the header, did not overheat it I'm pretty sure.
connected few wires and plug them on a breadboard ...
while moving the breadboard around all pads of the ebay board  broke off ...

duh !  im thinking the quality on the pads is way low,  copper layer should not unstick so easily ...

do I miss something ? I'm still pretty noob :-)
I was planing to incorporate pads in my future board design to make some kind of card edges ...
are they going to peeal away ?

59
Project development, ideas, and suggestions / Re: Alternative to Raspberry Pi?
i'm following this thread with interest :) 
cause i might want to have some arm board who can boot a small linux, have some GPIO and have good graphic
output really soon...
it is after all a product line at a good price that just begin  to open to a bigger segment of develloper :-) 
i wish to see also more high end mini boards , let say some multicore with gpu kind of ... 
of course there is still alot of problem with proprietary stuff but i wish to think we are heading in the good direction...   

 i just want to add that on the small side there's stuuff like the STM32F4 Discovery (and other similar small arm boards) with no linux or GPU, they are often hackable(GPIO) and sometime really inexpensive (i got my STM for free) and who can be powerful enough to do useful job and also blink leds too  ... :o)

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