A second more complicated unit using a bargraph in addition to numbers is posted in attachment below:
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A second more complicated unit using a bargraph in addition to numbers is posted in attachment below:
If you do not believe in MAGIC, Consider how currency has value simply by printing it, and is then traded for real assets.
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Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants - but debt is the money of slaves
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There simply is no "Happy Spam" If you do it you will disappear from this forum.
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Hi, Joe
from your program ... may I think you use "something like" a MAX 7219 Serial LedDriver ???
Alain
Last edited by Acetronics2; - 20th October 2008 at 09:23.
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Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
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IF there is the word "Problem" in your question ...
certainly the answer is " RTFM " or " RTFDataSheet " !!!
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Hi Alain,Originally Posted by Acetronics
I used this: http://cgi.ebay.com/ws/eBayISAPI.dll...MEWA:IT&ih=022
and this
http://cgi.ebay.com/40-segment-2-54m...d=p3911.c0.m14
The price was right.
Last edited by Archangel; - 20th October 2008 at 09:38.
If you do not believe in MAGIC, Consider how currency has value simply by printing it, and is then traded for real assets.
.
Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants - but debt is the money of slaves
.
There simply is no "Happy Spam" If you do it you will disappear from this forum.
|
New data
Hi everyone,
Forum member SAM brought to my attention this code wasn't doing as expected
with the sepecified display. When I first set this up, the display I used did not
agree with the printed data in the data sheet, the new display they are selling does.
Replace the eeprom data in the listed code with the following:
Update, the Chinese vendor which supplies this display is : http://www.sureelectronics.net/Code:data @ 0,252,96,218,242,102,182,62,224,254,230
My Thanks to SAM for bringing this to my attention.
JS
If you do not believe in MAGIC, Consider how currency has value simply by printing it, and is then traded for real assets.
.
Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants - but debt is the money of slaves
.
There simply is no "Happy Spam" If you do it you will disappear from this forum.
|
Seems they have pretty nice stuff there, probably not suitable for mass production, but interesting and cheap.
Steve
It's not a bug, it's a random feature.
There's no problem, only learning opportunities.
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Well the code provided by Joe works great now. I really appreciate Joe posting this and then taking the time to help me get it working. I have three machines that I really need tach's on, a spincaster, a cnc mill, and a lathe and this display and Joe's code fits the application perfectly.
The display I got from Sure Electronics was this one. It was only $14.00 delivered and is quite bright.
I'm in the process of setting up a hall effect sensor as the pickup and it should work fine for this.
Thanks again Joe,
Sam
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I guess I was a bit too quick to think that my hall sensor implementation would be simple. Here's the hall effect sensor I have, it works great as a switch, such as for a cell phone lid or laptop lid switch or some application like that, as it's recommended for.
But it just doesn't appear to be able to switch quickly enough. Can anyone recommend or have experience with one that is better suited for a tachometer yet inexpensive ?
Thanks
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