Stampsinclass question (Basic Analog and Digital text)
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Posts: 46,084
Robert,
Sorry about that. Challenge 1 on page 101 should really read:
" Use what you learned from Program Listing 5.3 and its 'About the Code'
section to write a segment of code that plays two tones simultaneously for 3
seconds."
I hope to revise and update this text soon, and I'm open for suggestions.
My list so far is:
o Fix typos, of course.
o Add example problems with solutions throughout.
o Replace the Stamp-O-Scope with Stamp Plot Lite or similar software.
o Fix the musical note fibs in Program Listing 5.3.
o Add an exercise that sets the zero and span voltages on the ADC0831 using
two methods: (1) Potentiometers, and (2) PWM.
o Use both opamps in the LM324 plus 2 PWM circuits to change both color and
brightness of a 2 color LED.
o Fix the ADC0831 theory of operation and example code. Tracy Allen
pointed out that I wasn't reading the data sheet carefully enough. The
short of the problem is that the ADC0831 increments its output by 1 for
every increment of span/256. The book states span/255. Tracy also pointed
out some cool programming and math tricks that can be used with span/256.
(Thanks Tracy!)
o Add a comparator IC example.
Andy
Andrew Lindsay, Applications Engineer
Parallax, Inc. Technical Support
E-Mail...........alindsay@p...
Voice............(916) 624-8333 ext 113
Parallax, Inc. home page....................www.parallaxinc.com
BASIC Stamp Educational Resources...........www.stampsinclass.com
SX Microcontroller University Resources.....www.sxtech.com
Original Message
From: Ken Gracey [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=Z9Htp4pryQBJSxh1xj9wRErDpSozHXphVw30xKYBrnvL2DAxaSR1mWOZGkOPfOT83aTpee5xOusuXbxobnAg]kgracey@p...[/url
Sent: Thursday, July 19, 2001 9:27 AM
To: basicstamps@egroups.com
Subject: RE: Stampsinclass question
Dear Robert,
It would be really helpful to Parallax if you submitted any typos you find
to stampsinclass@p.... We try to keep the text(s) in perfect
order but as you recognize it's a real challenge. Sometimes we send out free
hardware if the level of assistance is significant.
Andy Lindsay will respond to your question.
Thanks,
Ken Gracey
Parallax, Inc.
________________________________________________________________________
________________________________________________________________________
Message: 16
Date: Thu, 19 Jul 2001 05:09:53 -0000
From: robert_hiebert@s...
Subject: Stampsinclass question
Hi All,
I'm slowly working my way through the Stampsinclass curriculum,
trying to teach myself about the magic world of microcontrollers.
Wonderfull thing Parallax has done making this public, but there
seems to be a lot of typos. I'm not complaining, and I've been able
to figure out most to date, but I think I've got one now that has me
stumped.
Basic Analog and Digital Student guide Version 1.0 page 101
Challenge 1 calls to modify Program Listing 3.1. I think this is
a typo, and can't for the life of me figure out which one they want
that will still satisfy the requirements of the succeeding challenges.
Any suggestions?
Thanks,
Robert
Ken Gracey, Parallax
New BS2p interfaces with 1-Wire, I2C,
and Hitachi-compatible LCDs
Order one today through www.parallaxinc.com
Our educational site is www.stampsinclass.com
Sorry about that. Challenge 1 on page 101 should really read:
" Use what you learned from Program Listing 5.3 and its 'About the Code'
section to write a segment of code that plays two tones simultaneously for 3
seconds."
I hope to revise and update this text soon, and I'm open for suggestions.
My list so far is:
o Fix typos, of course.
o Add example problems with solutions throughout.
o Replace the Stamp-O-Scope with Stamp Plot Lite or similar software.
o Fix the musical note fibs in Program Listing 5.3.
o Add an exercise that sets the zero and span voltages on the ADC0831 using
two methods: (1) Potentiometers, and (2) PWM.
o Use both opamps in the LM324 plus 2 PWM circuits to change both color and
brightness of a 2 color LED.
o Fix the ADC0831 theory of operation and example code. Tracy Allen
pointed out that I wasn't reading the data sheet carefully enough. The
short of the problem is that the ADC0831 increments its output by 1 for
every increment of span/256. The book states span/255. Tracy also pointed
out some cool programming and math tricks that can be used with span/256.
(Thanks Tracy!)
o Add a comparator IC example.
Andy
Andrew Lindsay, Applications Engineer
Parallax, Inc. Technical Support
E-Mail...........alindsay@p...
Voice............(916) 624-8333 ext 113
Parallax, Inc. home page....................www.parallaxinc.com
BASIC Stamp Educational Resources...........www.stampsinclass.com
SX Microcontroller University Resources.....www.sxtech.com
Original Message
From: Ken Gracey [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=Z9Htp4pryQBJSxh1xj9wRErDpSozHXphVw30xKYBrnvL2DAxaSR1mWOZGkOPfOT83aTpee5xOusuXbxobnAg]kgracey@p...[/url
Sent: Thursday, July 19, 2001 9:27 AM
To: basicstamps@egroups.com
Subject: RE: Stampsinclass question
Dear Robert,
It would be really helpful to Parallax if you submitted any typos you find
to stampsinclass@p.... We try to keep the text(s) in perfect
order but as you recognize it's a real challenge. Sometimes we send out free
hardware if the level of assistance is significant.
Andy Lindsay will respond to your question.
Thanks,
Ken Gracey
Parallax, Inc.
________________________________________________________________________
________________________________________________________________________
Message: 16
Date: Thu, 19 Jul 2001 05:09:53 -0000
From: robert_hiebert@s...
Subject: Stampsinclass question
Hi All,
I'm slowly working my way through the Stampsinclass curriculum,
trying to teach myself about the magic world of microcontrollers.
Wonderfull thing Parallax has done making this public, but there
seems to be a lot of typos. I'm not complaining, and I've been able
to figure out most to date, but I think I've got one now that has me
stumped.
Basic Analog and Digital Student guide Version 1.0 page 101
Challenge 1 calls to modify Program Listing 3.1. I think this is
a typo, and can't for the life of me figure out which one they want
that will still satisfy the requirements of the succeeding challenges.
Any suggestions?
Thanks,
Robert
Ken Gracey, Parallax
New BS2p interfaces with 1-Wire, I2C,
and Hitachi-compatible LCDs
Order one today through www.parallaxinc.com
Our educational site is www.stampsinclass.com