Board of Education and BS2
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I'm working on a robotics project in class and using the BS2 with the
Board of Education to control the robot, or at least planning to. I'm
using v1.2 of the stamp software, regular serial cable (not null
modem), ad 9V power supply. I'm pretty sure that I wiring a led
correctly to the board (to test if everything works) according to the
diagram in the manual and wrote the following program:
output0
blink:
out0=0
pause 1000
out0=1
pause 1000
goto blink
Rather than blinking, though, the led does not even turn on. I have
it wired in serial with a 470 ohm resistor from P0 to Vdd. I tried
reversing the led as well. I tried pressing the reset button.
Apparently when I run the program to the stamp it is
tokenized/downloaded successfully, but nevertheless the led remains
off. Could this be a faulty board? I tried two BS2's thinking that
one was broken but neither seemed to control the led. What could the
problem be?
- Chris
Board of Education to control the robot, or at least planning to. I'm
using v1.2 of the stamp software, regular serial cable (not null
modem), ad 9V power supply. I'm pretty sure that I wiring a led
correctly to the board (to test if everything works) according to the
diagram in the manual and wrote the following program:
output0
blink:
out0=0
pause 1000
out0=1
pause 1000
goto blink
Rather than blinking, though, the led does not even turn on. I have
it wired in serial with a 470 ohm resistor from P0 to Vdd. I tried
reversing the led as well. I tried pressing the reset button.
Apparently when I run the program to the stamp it is
tokenized/downloaded successfully, but nevertheless the led remains
off. Could this be a faulty board? I tried two BS2's thinking that
one was broken but neither seemed to control the led. What could the
problem be?
- Chris
Comments
Here's a test program like yours with a little extra feedback:
LED CON 0 ' change to test other pins
Blink:
HIGH LED
DEBUG "LED is on", CR
PAUSE 1000
LOW LED
DEBUG "LED is off", CR
PAUSE 1000
GOTO Blink
In the end, you might just have a bad LED -- it happens. Try connecting your
LED/resistor circuit directly to Vdd to make sure it's working.
-- Jon Williams
-- Parallax
In a message dated 12/14/01 2:56:08 AM Central Standard Time,
apparatus@m... writes:
> I'm working on a robotics project in class and using the BS2 with the
> Board of Education to control the robot, or at least planning to. I'm
> using v1.2 of the stamp software, regular serial cable (not null
> modem), ad 9V power supply. I'm pretty sure that I wiring a led
> correctly to the board (to test if everything works) according to the
> diagram in the manual and wrote the following program:
>
> output0
>
> blink:
> out0=0
> pause 1000
> out0=1
> pause 1000
> goto blink
>
> Rather than blinking, though, the led does not even turn on. I have
> it wired in serial with a 470 ohm resistor from P0 to Vdd. I tried
> reversing the led as well. I tried pressing the reset button.
> Apparently when I run the program to the stamp it is
> tokenized/downloaded successfully, but nevertheless the led remains
> off. Could this be a faulty board? I tried two BS2's thinking that
> one was broken but neither seemed to control the led. What could the
>
[noparse][[/noparse]Non-text portions of this message have been removed]
The first line
Output0
Is that a typing error?, you mean
Output 0
Without the space between output and 0
It is interpreted as a label, i.e port 0 is never set to be an output.
Regards peter
Oorspronkelijk bericht
Van: apparatus_1999 [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=lYRn36afm-RjkRBnVLymug-QhVGXIdP-9KIj61wDvnxDNaO3_8YWMizVSKCtd5OtRP8SccyESjon4zA1]apparatus@m...[/url
Verzonden: vrijdag 14 december 2001 0:54
Aan: basicstamps@yahoogroups.com
Onderwerp: [noparse][[/noparse]basicstamps] Board of Education and BS2
I'm working on a robotics project in class and using the BS2 with the
Board of Education to control the robot, or at least planning to. I'm
using v1.2 of the stamp software, regular serial cable (not null
modem), ad 9V power supply. I'm pretty sure that I wiring a led
correctly to the board (to test if everything works) according to the
diagram in the manual and wrote the following program:
output0
blink:
out0=0
pause 1000
out0=1
pause 1000
goto blink
Rather than blinking, though, the led does not even turn on. I have
it wired in serial with a 470 ohm resistor from P0 to Vdd. I tried
reversing the led as well. I tried pressing the reset button.
Apparently when I run the program to the stamp it is
tokenized/downloaded successfully, but nevertheless the led remains
off. Could this be a faulty board? I tried two BS2's thinking that
one was broken but neither seemed to control the led. What could the
problem be?
- Chris
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the LED place across the power supply output terminals momentarily and
verify the LED illuminates. If it does reconnect it to the BS2 and use the
example program in the Stamp manual of the blinking LED.
Good luck, Steve
Original Message
From: "apparatus_1999" <apparatus@m...>
To: <basicstamps@yahoogroups.com>
Sent: Friday, December 14, 2001 12:54 AM
Subject: [noparse][[/noparse]basicstamps] Board of Education and BS2
> I'm working on a robotics project in class and using the BS2 with the
> Board of Education to control the robot, or at least planning to. I'm
> using v1.2 of the stamp software, regular serial cable (not null
> modem), ad 9V power supply. I'm pretty sure that I wiring a led
> correctly to the board (to test if everything works) according to the
> diagram in the manual and wrote the following program:
>
> output0
>
> blink:
> out0=0
> pause 1000
> out0=1
> pause 1000
> goto blink
>
> Rather than blinking, though, the led does not even turn on. I have
> it wired in serial with a 470 ohm resistor from P0 to Vdd. I tried
> reversing the led as well. I tried pressing the reset button.
> Apparently when I run the program to the stamp it is
> tokenized/downloaded successfully, but nevertheless the led remains
> off. Could this be a faulty board? I tried two BS2's thinking that
> one was broken but neither seemed to control the led. What could the
> problem be?
>
> - Chris
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>