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- Aug 24 2000
Hi there, I have just downloaded the PWM example into my BX-24.
Currently, PWM pulses are coming out of pins 25,26 and 27. Isn't the
PWM pulses only suppose to co...
soso soso - Apr 3 2006
I have a question about PWM output of BX24.
I use BX24's PWM output to control a dc motor with driver LM18200L, and I=
set the PWM rate-setting as 1 and 8-b...
ricinecwh - Jul 28 2006
Somebody tell me the PWM can be used in the Digital to analog
conversion, and it is the best way to convert the digital output of the
do anybody have ...
PWM [3 Articles]
Thadeu S.B Esteves - Jul 31 2002
Is it possible to use PWM output in the general purpose I/O pins, or only in the OC1A and OC1B ? Is it possible to generate 3 or more PWM outputs simultaneously?
Ed - Apr 15 2005
Is it possible to connect the PWM to other pin than 25, 26 or 27?
For example pin 7 or 18?
... No. The BX-24 PWM outputs are res...
Don Kirby - Aug 1 2006
I'm looking for a simple way to measure multiple PWM signals at one
time. Can anyone suggest a method to convert PWM to voltage to avoid
the need to actually time...
Michalicek, Andrew AZ76 - Oct 17 2000
The documentation is correct. Output is pins 26 & 27.
There is no correlation between using Timer1 for PWM and the LEDs.
Treat pins 26 and 27 (and 25) as yo...
Dexton Rivers - Oct 11 2000
Hi there, what is meant by inverted PWM? For the BX-24, does it mean
an inverted PWM has a range of -5 to 0 volts?
larzyharzy - Feb 28 2005
I want to control the color of four light boxes depending on different sensor input. I want
each box to be able to go through the whole color spectrum independent...
Pat Marion - Jan 2 2001
Hey. I am new to the basicx. I have a basicx24. I was wondering, is it
possible to make a pwm signal out of the regular i/o pins or do i have to
use 26 and 27. I ...
sturgessb - Jul 11 2007
Im having a problem where the need to read 5 channels of PWM is causing my control loop to
run very slowly (for obvious reasons).
So I would like to move this job o...
Ed - Jul 27 2005
I read the application notes for PWM and I assume that maximum speed
would be around 14kHZ. For my project I would need more than 20kHz,
would it be possible to over...
Vic Fraenckel - Mar 9 2001
I would like to use PWM to drive a piezo buzzer. What interface circuitry
would I need to have between the BX24 PWM output pin and the piezo-buzzer? I
would like to...
- Mar 16 2001
There are some examples around using background PWM that warn of a
possible conflict with any other functions using Timer1.
Does anyone know if PulseIn is a Tim...
soso soso - Mar 2 2006
I have a question about timer. In my applicaiton, PWM is always used to control a DC motor, but I also want to use the command "timer" to calcuate the time interval of...
power_overwhelming_4 - Oct 12 2004
I just recently soldered header pins on the pins 25, 26, 27 of the
BX-24 chip. Last month I tested the PWM in pin 26 via the example
program in BasicX "PWM Exa...
Tom Becker - May 6 2005
I'm PWM'ing a DC motor with Timer2, so it's 8-bit PWM, which I'm running
at 450Hz. 30:1 gearing brings the output shaft to 1RPS when the motor
is at 1800RPM. I'd like the 1R...
peanuts - Sep 21 2001
Will multitasking be affected by the PWM (0C1A and 0C1B)?
K Jones - Nov 21 2001
Can I use Timer2 To generate a PWM signal on a I/O line?
- Jan 18 2002
I have an accelerometer (Memsic MXD202) with a 100 Hz fixed frequency PWM
I want to interface this to a BX-01 chip, ending up with an RS232 output
v8fd - Sep 6 2002
I was going to use the OutputCapture to emit a variable length
PWM signal, but it took too much memory. Can someone help me with a
workaround? It is to drive a so...
Mike Perks - Apr 13 2005
Since first getting started with BasicX 5 months ago, I have hit my
first real snag. I am generating dual PWM for motor control and now I
want to add an IR remote that nee...
Tom Becker - Nov 18 2004
> ... how  to control the intensity of each LED array.
You can do it with PWM. The BX-24 can produce two simultaneous
pseudo-independent PWM signals, and you c...
PWM [3 Articles]
clauja81 - Nov 19 2003
I am working on a proyect where I need to generate four PWM's. As
you know I can generate two of them with pin 26 and 27, but I need
two additionals. Does anybody...
Dan - Nov 18 2006
Thanks in advance for your advice... I'm totally stumped.
I would like to read two PWM sources with the BX and output a combined
signal, somewhat like making my own servo mixer...
- Nov 19 2001
I am trying to replace a very flaky analog idle control unit on my
car. The unit monitors engine RPM, engine temperature, air
temperature, throttle position an...
PWM [10 Articles]
J.M. Mongeau - Jan 12 2000
Are there any PWM example program for the BasicX-24?
Also, when interfacing a DC motor to the BX24, is a H-Bridge required if you
only want to utilize a motor us...
- Sep 8 2000
Understood. Thanks alot .
Is there any PWM which is continous in the background until I receive
a data to call it to stop?
Sort of like...a PWM signal acti...
Tim Chapman - Dec 29 2005
Has anyone been successful in sending data to the parallax LCD?
I get very intermittent results. Lots of garbage on the display.
- Jul 28 2000
I am new to this basicX deal...
I have gotten a motor to run using a MOSFET transister thingy with
base connected to pin 5. Now, I want to P...
pwm [2 Articles]
kfk256 - Dec 30 2002
How do i send PWM out from pins 27&26 (or is that pins 25&26) of the
bx24 at the same time and same pulse.
Yuli - Jan 28 2010
Hi BX24 gurus,
The BX24 example code shows that we can configure Pin26 and Pin27 as PWM signal output ports, is it possible to have one more? If so, how can we configure it? Tha...
Tom Becker - Jan 30 2008
Also, if you move the sounder to PD4, PD5 or PD7 (it's on PD6 now),
you can use PWM, which can provide more complex sounds, to generate
the tone instead of bit-banging it. PWM u...
soso soso - Apr 3 2006
Question about PWM output:
I am using BX24=A1=A6s PWM (pin26) to control a 24V DC motor with a =
Scott B. - Mar 27 2003
Hello! I am trying to get infrared obstacle detections sensors to
work on my robot. The circuit on which I based my design is the
system presented on the Seattle ...
K Jones - Oct 25 2001
I was wondering if the dual pwm example posted on the basicx website
would interfer with the pulseout/pulsein command ? I am using the
pulse out command to ...
PWM [5 Articles]
matias domin matte izquierdo - May 31 2005
I want to drive two 6VDC motors. I'm using the L293D to control the
direction and speed, but I need a permanent PWM output from BX-24. Is it
posible? I think that with mul...
Mike Linnen - Apr 13 2000
Just wanted to mention that I had great success with using Dual PWM via timer1 on my robot. The application note on this was a great help!! I was using two tasks to con...
Tom Becker - Feb 1 2005
> ... light a bulb  slowly...
I'd suggest PWM from BX-24 pin 26 or 27, through a transistor switch to
handle the bulb current. You'll find application note "Pr...
Tom Igoe - Dec 5 2000
I'm running the netmedia pwm example on a BX-24, and it's locked the
chip up good and tight. I can't get it to halt at all. I'm doing
the usual voodoo now, have d...