absalom

so, i had previously been using the miditron to transmit data to max, but am coming up against a problem that seems inconsistent.

i have the miditron ports 1 & 2 switched to 'analog in' 

i have two contact switches set up on 1 & 2

while they are 'open' both 1 & 2 read spurious data, just random numbers around 30 (between 0 - 127, so i'm guessing .8v or so)

when the switch on 1 is closed, port 1 reads '0'

however, when switch on 2 is closed, both port 1 AND 2 read '0'

i am having a lot of problems with cross - port readings. also, i can't get sensors to output any sensible info. i have used 2 different miditrons, and it happened on both of them.

did i fry something? maybe my wiring is no good?

i have the miditron ports 1 & 2 switched to 'analog in' 
i have two contact switches set up on 1 & 2

i am having a lot of problems with cross - port readings.  also, i can't get sensors to output any sensible info.  i have used 2 different miditrons, and it happened on both of them.

did i fry something?  maybe my wiring is no good?

miditron-maxmsp

oh, also, when i switch the ports to 'analog out' 

there is no problem getting individual LEDs to light up on individual channels...

oh, also, when i switch the ports to 'analog out' 
there is no problem getting individual LEDs to light up on individual channels...
arg


Sounds like you don't have pull-up resistors on your switches. When 

they are open, your terminals float and will read random values or 

the values of adjacent ports. See the schematic for wiring switches 

in the MidiTron manual. Also, check out the MidiTron Wireless manual, 

which has more detailed wiring diagrams. Everything's at 

>so, i had previously been using the miditron to transmit data to 

>max, but am coming up against a problem that seems inconsistent.

>i have the miditron ports 1 & 2 switched to 'analog in'

>i have two contact switches set up on 1 & 2

>while they are 'open' both 1 & 2 read spurious data, just random 

>numbers around 30 (between 0 - 127, so i'm guessing .8v or so)

>when the switch on 1 is closed, port 1 reads '0'

>however, when switch on 2 is closed, both port 1 AND 2 read '0'

>i am having a lot of problems with cross - port readings. also, i 

>can't get sensors to output any sensible info. i have used 2 

>different miditrons, and it happened on both of them.

>did i fry something? maybe my wiring is no good?

********************************************

* The Wireless Sensor to MIDI Interface *

Sounds like you don't have pull-up resistors on your switches. When 
they are open, your terminals float and will read random values or 
the values of adjacent ports. See the schematic for wiring switches 
in the MidiTron manual. Also, check out the MidiTron Wireless manual, 
which has more detailed wiring diagrams. Everything's at 
http://miditron.com.

At 6:35 PM -0600 8/1/08, jason wrote:
>so, i had previously been using the miditron to transmit data to 
>max, but am coming up against a problem that seems inconsistent.
>
>i have the miditron ports 1 & 2 switched to 'analog in'
>i have two contact switches set up on 1 & 2
>
>while they are 'open' both 1 & 2 read spurious data, just random 
>numbers around 30 (between 0 - 127, so i'm guessing .8v or so)
>
>when the switch on 1 is closed, port 1 reads '0'
>
>however, when switch on 2 is closed, both port 1 AND 2 read '0'
>
>i am having a lot of problems with cross - port readings.  also, i 
>can't get sensors to output any sensible info.  i have used 2 
>different miditrons, and it happened on both of them.
>
>did i fry something?  maybe my wiring is no good?
>
>help!

********************************************
* MidiTron                                 *
* The MIDI to Real World Interface         *
*                                          *
* MidiTron Wireless                        *
* The Wireless Sensor to MIDI Interface    *
*                                          *
* Now available from http://miditron.com   *
********************************************


i tried this and the ports do not react to anything at all. 

in 'digital in' mode they all bang 1 (toggled on), occasionally oscillating 0.

i kept the switches in place and tried it in analog mode and the same thing happened, no input or reaction at all.

also, when i had been trying it in the previous mode, i hooked up at least 6 terminals, and they would all react to any one switch that was flipped.

i tried this and the ports do not react to anything at all.  
in 'digital in' mode they all bang 1 (toggled on), occasionally oscillating 0.  

also, when i had been trying it in the previous mode, i hooked up at least 6 terminals, and they would all react to any one switch that was flipped.  

I was successful in getting some nice values with a FSR with a 10k-Ohm resistor (0-123) without a resistor it goes from 0-127. I just using a simple noise~ patch to test resistance. With a Flex sensor (using the same resistor) it starts out a value of 63 and when bend the volume fader goes below 63 the opposite direction than the FSR with Wireless MidiTron. I have the Miditron Program patch to default 0-127.

miditron & max/msp