I'm still a fan of those BS1 Project Boards. I should have hoarded them all at $29!
@microcontrolleruser: Glad to hear you're all sorted out. I just use LEDs directly, those integral 220 ohm resistors are all you need to limit current to ~15 mA (red) or less for other colors (which have higher forward voltages).
Comments
Switching over to Propeller learn C Simple lesson 2.
Please spell Propeller correctly. Thanks.
Dave
There. It is corrected.
My apologies for any inconvenience that might have caused you.
Probably next is DEBUG experiment.
@microcontrolleruser: Glad to hear you're all sorted out. I just use LEDs directly, those integral 220 ohm resistors are all you need to limit current to ~15 mA (red) or less for other colors (which have higher forward voltages).
Code for flashing is super simple, just TOGGLE.
do
toggle 5
pause 250
loop
My BS1 P-board robot:
Will run that before I take circuit off board.
'integral 220 ohm resistors'
Good info.
Thanks!
Erco
Thank you!
PM'd you.
Been busy with work related stuff.
We'll fit in some 'Parallax' time this weekend.
It's kind of like an addiction isn't it?
Possible Project
Programs to test 4000 Series CMOS logic gate IC's for 'true'.
http://www.futurlec.com/IC4000Seriesb.shtml
Send signals instead of button circuits I've seen for doing this.
Will that work?
learn.parallax.com/basic-stamp-tutorials
The "What's in a Microcontroller" Text has examples of how to Blink an LED and more:
https://parallax.com/downloads/whats-microcontroller-text
Also, if you need help with understanding Electronics, then you might what to have a look at the "Make: Electronics: Learning Through Discovery" book.
https://amazon.com/Make-Electronics-Learning-Through-Discovery/dp/1680450263/ref=pd_bxgy_14_img_2?_encoding=UTF8&psc=1&refRID=SR392RDTJF0WS3YKX9P1
Okay.
What I meant was this.
I didn't really look at the push button examples (no microcontroller) to see what voltage they were using.
Just wanted to make sure these CMOS 4000 Series will work with 5v.
Have some in Radio Shack Electronics Lab but don't know what voltage the experiments are at.
Guess I could look in that manual huh?
However, you might have a look-see at this Nuts and Volts article:
nutsvolts.com/magazine/article/understanding_digital_logic_ics_part_4
What is listed there, they may handle 3-12 volts or perhaps 3-15volts
This seems to have some good info.
https://electronicsclub.info/cmos.htm
Thanks.
Another project.
Our trusty Parallax stepper motor.
Thinking to plug the leads into breadboard and stare at it and see what develops.
Is Stamp 1 up to that or will we run into an 'Oh No!'?
Are you saying there is a Stepper motor section in it?
I have Stamp 1 App notes as a desktop icon already.
EDIT Okay. It's chapter 6.
Serial Stepper Control routine.
Found the catch.
App notes has schematic that includes a ULN 2003 IC.
We came around to just using a ready made board for this. But that was with different microcontroller.
http://www.futurlec.com/Mini_SMCC.shtml
Different approach but gets it done.
Will look and see if we already have a ULN 2003 IC or see about ordering one.
Strong point there is App Notes source code will work with it.
Yep.
https://www.parallax.com/product/500-00005
Pretty sure we ordered one from Parallax.
Hey! There on sale! We paid full price. $1.50!