Well, dont know if this helps at all, but here is how I did it with a 16 segment 10 character display.
I created a word size variable for the 16 segments. There was a look up table to determine...
Type: Posts; User: bearpawz; Keyword(s):
Well, dont know if this helps at all, but here is how I did it with a 16 segment 10 character display.
I created a word size variable for the 16 segments. There was a look up table to determine...
I added an UDN2981 and I am now pulling the current from the 12V supply and using current limiting resistors on each segment. Works like a charm now.
I am ALMOST done with this part of my project. There are just a few more things to resolve. What I need some help with now is the dimmer circuit. I want to use the stock dimmer switch to adjust the...
Yes this is true. I just think of it as 12V for some reason. The power supply I use on my bench is 10Amps 13.8V dc so close enough. ;)
Ive been working on my little display here, so far so good. With some help from a few people here on the board I got the numeric and bargraph parts to jive with each other.
So here is my current...
thanks daryl, it does in fact work. I got tired last night and gave up on it and I think we were cross posting some how. Now all I have to do is tackle communications and Im done with this part of...
Not even worried about that part right now. What will be monitoring the actual car will be a whole other system. At the moment just need to know how to get the displays to display correctly.
Uh Oh. Ok, it work flawlessly until you start working with a very tight scale. An example is the volt meter. It usually displays information from 8V to 18V with the guages I am replacing....
DOH!
I knew there was something I wasnt thinking of...
The key was right shifting the $FFFF. If anyone else is following this, here is the final formula I came up with and it works perfectly.
...
Using an alegro A6276, so the pic shifts the data out. The displays thems selfs are working fine. I was just wondering if there was a quicker way to set all bits up to a certain bit number on with...
I am trying to create a bargraph display. It has 16 segments. My routine uses a calculation of an upper bound limit for what the display should be reading and a lower bound limit.
...
Hi all
I am needing to have one pic communicate info to another pic. What I want to know is this: lets say I need to send info from pic1 to pic2, and use shiftout on pic one to send the data, and...
Ok, here goes my first attempt at a "write up"
I am currently working on a project using this chip. Most of the information you need to know can be found in the data sheet. Unfortunatly the...
Well, Since this is kind of what Im working with figure I will ask here. Im using the same MAX7219. I have a micro simply counting from 0 to 9999. So far no problems with the code or the MAX7219 IC....
Well it only took the better part of 3 years but I have a USB programmer on the way. Hope it works. ;)
Well, I think at this point I have tried everything except brand new out of the tube microcontrollers. There is one factor in play here I didnt think of until just recent: Im using a very old...
Im at work right now so dont have access to the entire code. I did make this change to the main routine:
Start:
PortB=0
pause 500
portB= $FF
pause 500
Goto start
Hmm. let me double check this:
Yes I am using 1K. The "Power" LED seems to do just fine with the 1K but I see what your saying about the pic not having a whole lot of current. Just for gits and...
Yeah, just my mistake trying to draw up a quick schematic. I fixed it though and its now hooked up as the new schematic shows. And yes, now using port B.4 now (pin 7) only because it makes the...
Yeah, thats just an error in my schematic diagram. I have the resistor on pin 4 not pin 3. Im prety sure my problem is somewhere in the config fuses. Its been a while since Ive played with any of...
http://home.comcast.net/~bearpawz/blink_schematic.jpg
Ok, I dont know WHAT in the world is going wrong here. I can not even get so much as a simple blink to happen. Here is the code:
DEFINE OSC 8 ' 8 Mhz...
Well that certainly would work as well. Thanks. I was hoping there would be some kind of command like DCD that would just magicaly set all the bits on but I guess not. I might look into just...
Ok, I kind of see where your going. What I need to do is something very similar. If I understand correctly DCD will set the specified bit. Here is what the help in MCS says:
"DCD returns the...
Thanks for the reply. Actually, I got the displaying the digits thing all set. The display chip is quite handy as it handles all the multiplexing of the digits. Just have to send it what digit to...