moris526

I have Serial connected to a button led matrix with Arduino.

I constantly feed 4 integers (led position,R,G,B), and from time to time receive button pressed from Arduino.

If I feed the Serial with the speed I need and press a button, seems like the data entering Serial gets mixed, sending other colours and positions, like if the positions of the integers wherer altered.

My question is : Is there a way to pack the data entering Serial to avoid this behaviour?

74.amxd

Hi.
 
I have Serial connected to  a button led matrix with Arduino.
I constantly feed 4 integers (led position,R,G,B), and from time to time receive button pressed from Arduino.

If I feed the Serial with the speed I need and press a button,  seems like the data entering Serial gets mixed,  sending other colours and positions, like if the positions of the integers wherer altered.

Hi.
 
I have Serial connected to  a button led matrix with Arduino.
I constantly feed 4 integers (led position,R,G,B), and from time to time

serial-efficiency

and why don't you use higher serial baud rate ?

the both packs, append and prepend can be done better,

but one has to see arduino code to get the idea how serial port data

get parsed to check where the receiving and sending data colides.

What you seem to do is to run on / off chain to LED stripe with id a.

 , in arduino then set incoming LED number

Higher the speed needed, reducing amount of bytes to send does help

P.S. over the thumb calc - to send message like 

<a 100 0 0 0 > <a 101 55 55 55 > per counter progress which in ascii

has 32 bytes allows sending of 30 such messages per second

what is the speed of that metro ?
and why don't you use higher serial baud rate ?

the both packs, append and prepend can be done better,

but one has to see arduino code to get the idea how serial port data
get parsed to check where the receiving and sending data colides.
What you seem to do is to run on / off chain to LED stripe with id a.
if that is all, you can simpify the code
and only send a $1 , in arduino then set incoming LED number
to 0 0 0, and next one to 55 55 55 ...
Higher the speed needed, reducing amount of bytes to send does help

P.S. over the thumb calc - to send message like 
<a 100 0 0 0 > <a 101 55 55 55 > per counter progress which in ascii
has 32 bytes allows sending of 30 such messages per second
at baud 9600.
that would be 33 ms metro speed


Im a real beginner, doing things kind of in the dark. Trying a bit of code from here and there.

Could you take a look at the Arduino code, please?

GRANDE_FINAL_SIN_INT.amxd

I have the metro speed at 33.......just beacuse

Try different baud rates with no luck. It seems like the higher the baud the worst the response

Try different baud rates with no luck.  It seems like the higher the baud the worst the response

the thing is i have to be able to change colours, so, I think i need the 4 integers, unles I do the colour asigment in arduino, like sending just 2 integers, position, and colour coded in 1 int (I only need 6 int)

the thing is i have to be able to change colours, so, I think i need the 4 integers, unles I do the colour asigment in arduino, like  sending just 2 integers, position, and colour coded in 1 int (I only need 6 int)

But just a brief look shows mismatch of serial baud rate set in

arduino setup and in max patch that you posted.

The rest is too complicated for me to read on sunday morning,

Looks like multitrellis adafruit control.

I would have to download and read the library, check examples,

what it all needs to function, what are the limits of units used

for specific arduino board etc to avoid conflicts, what interrupts

can/should / are in use etc etc to tell you if your arduino sketch has a problem.

Honestly , this is not my focus of interest.

But definitely start with reducing that metro,

get it down as low till stuff starts to work.

All that string parsing needs time to execute.

But just a brief look shows mismatch of serial baud rate set in
arduino setup and in max patch that you posted.
set both to 57600 or 115200 to start with.

The rest is too complicated for me to read on sunday morning,
Looks like multitrellis adafruit control.
I would have to download and read the library, check examples,
what it all needs to function, what are the limits of units used
for specific arduino board etc to avoid conflicts, what interrupts
can/should / are in use etc etc to tell you if your arduino sketch has a problem.
Honestly , this is not my focus of interest.

Maybe you should do that instead...
But definitely start with reducing that metro,
get it down as low till stuff starts to work.
All that string parsing needs time to execute.
Maybe reduce to only 1 trellis unit ?


Serial Efficiency