2 DIGIT LED DISPLAY FROM BCD

Hello
I want to display 2 digit decimal numbers on LED 7 segment displays using 8 bit binary input.
Example, i want to output the decimal value of the output of a Microcontroller 8051 port on to a LED 7 segment display in Decimal form. How can i do it ?
If i connect the 8 bit port directly to 2 'LED 7 segment' displays, it shows in HEX form. But i need in decimal form. Please help me.
Thank You

Frank,
Have you ever calibrated your monitor(s)?
You do not seem to mention this in your post.
If you are running with the original default monitor profile (which is generic in the first place) then you will not be compensating for changes in the screen.
If colour is important to you, I suggest you get a calibration device (there are a few - gretag macbeth eye one is most common and reasonably affordable)and create a custom profile for your monitor(s) regularly(every 2 weeks) to compensate for change over time.
This should solve your problem.

Similar Messages

24" LED Display from DP/HDMI/DVI

I have a 24" LED Display and I'm looking to use it with a homebrew PC. The video card I'd like to buy has output in DVI, HDMI and regular DisplayPort (but not Mini DisplayPort).
I would think that going between regular DP and mini DP would be easy, but I haven't been able to find adapters that go from male DP to female mini-DP. Am I going to need to buy a video card that specifically outputs in mini-DP?
Thanks

<http://estore.circuitassembly.com/products/Mini-Displayport-Female-to-Displaypo rt-Male-Adapter-Cable.html>

How well does the new Apple 24" LED Display work?

Hey guys
Im thinking of purchasing a 24" LED Display from Apple, just because I need a bigger screen to work on, as I edit photos, and film and I've been looking into one for awhile. Buck for buck, is this monitor a good companion to the unibody MacBook pros with the mini display port? Of course, its looks all glitz and glamour on the mac site but has anyone worked with these things hands on? What are the pros and cons?

The display is very easy to use; considering you'll probable be plugging in the display multiple times per day this is really important.
The built in display is LED lit (cool light) sense the 24" is also LED lit (cool light), there is a greater consistency in color between the two displays.
Traditional LCD displays have a warmer glow due to using a fluorescent tube. Trying to go between LED and and fluorescent tube displays could drive you insane. especially if your using both displays at the same time for photography, where color can be very important.

Stereo from dual LED displays

I've got a workstation with dual 24" LEDs at the office, but I work in a room with another person and am regularly back and forth between headphones and speakers. A few times out of just not wanting to get to the back of the tower and switch the Line Out I went to the system preferences and changed to Display Audio.
This was more convenient for something fast, and each display clearly has left and right channels, but I can't help but wonder if there's a way to set one of the displays to be the left channel and the other one to be the right? If it makes a difference they're both going in over the small, proprietary connector. I don't remember what it's called.
Also, sidenote, the brightness button on the keyboard only adjust one display, not both. I wondered if it would be like the disc drives where you hold option and hit eject and the other display's brightness changes, but not the case. Seems a bit inconsistent, but not a big deal really.

Thanks! Yes I bought the 24" LED display. I love it! Pulled away the glass, with a suction cap but seem quite sacrificial on this display so put it straight back!

MacPro 3,1 & 10.6.8 & 5770 & LED Display Not Working

So from what I have read, 10.6.8 on my MacPro and the 5770 should work with this LED display, but I can't get it to even blip. I've disconnected my other monitors, I've reset the PRAM but no love at all. The display works instantly when I plug the mini plug into an older MacBook Pro 17".
What else can I try to get this combo working? Any advice is much appreciated.

If the computer does not have a Thunderbolt port you can't use a Thunderbolt display. There are no adapters or converters that will help.
Thunderbolt and Mini DisplayPort connectors are similar because Mini DisplayPort displays and adapters have to work in computer Thunderbolt ports. They won't work the other way round.

Macbook goes to sleep randomely when connected to Apple LED Display

I have an issue with my Macbook Pro (2009 model) when it's connected to my 27' Apple LED Display. For no apparent reason that I can tell, it just goes to sleep at random, and after I wake it up by pressing a key (bluetooth keyboard), the mouse cursor looks messed up:
It might be a bit hard to tell from the blurry photo (I don't know of a way to take a screenshot with the cursor, so I used my iPhone), but it's too halves of the spinning beachball.
There's nothing in the console's log that indicates the reason for switching to sleep mode. It's also not the magnets of the Macbook pro used to detected when the lid is closed (I'm using the NoSleep utility that prevents that behavior). I've already tried resetting the PRAM. Also, this behavior never happens when the macbook isn't connected to the external display, so that probably aint a heating problem either (also the temperature readings are all in bounds).
Any help would be very appreciated, as that thing is driving me crazy.

Jon,
Along the lines of my comment in your other thread. The battery connection cable between the logic board and the battery is also known as the "sleep/switch" connector. This little cable not only communicates battery power to & from the machine but also has a handle on regulating the machine's sleep process (and wake from sleep).
I've seen several MacBooks that have come across my work bench which are suffering from this exact issue you're describing and we're remedied by replacing that cable.
The component I'm referring to is this one-
http://www.ifixit.com/MacBook-Parts/MacBook-Battery-Connector-Sleep-Sensor-non-E nergy-Star/IF186-015

Connecting Both Mac Mini and MacBook Pro to single LED display

Is it possible to dock two mac computers to the same monitor, and have the ability to switch between each computer on the fly?
I am trying to dock both a MacBook Pro and a Mac Mini to the same 24" Apple LED display. I would like it to be as close to a "switch" solution as possible, where it takes only a single button push to change between which computer is being displayed on the monitor. I am used to a PC, where I can hook two computers up to the same monitor, and change the input in the monitor to switch between the two computers that are hooked up to it.
Since there are not any buttons on my monitor, and I am not used to Mac's yet, I am not sure how to easily switch? I was told I could do it when I bought it, but now the help desk is closed....
Message was edited by: colsonjm

I was hoping there was a better option. I have the wireless keyboard and mouse, and the two computers. I doubt there is a way to switch the wireless keyboard/mouse without disabling and reconnecting the bluetooth connection (and I really do not think there is a KVM switch for bluetooth devices yet)...
That being said, I was hoping to continue to control the laptop with the laptop keyboard, and the mini with the wireless devices, and NOT go the KVM switch route... I was hoping there was a way to have the mini and the macbook both connected, and either push a button or access a menu to switch between the two...
So am I hearing that this is not a viable option? I need to invest in a potentially expensive KVM switch, or run one of the two computers remotely from the other?
The reason I am frustrated is that I was told when making the purchase that it was very much possible (by multiple employees over the phone and in store). I was also told by the tech people over the phone that everything I needed to do so would be in the box (no extra cables or anything needing purchase).
Message was edited by: colsonjm
Message was edited by: colsonjm

Macbook to LED display: help me save my battery!

I have a brand new macbook pro 13-inch, and i have it connected to an apple LED display (the one that came out right before the new thunderbolt led display). There are 3 connections from the macbook to the display. One goes into the power supply port one into the DVI or thunderbolt port, and the other into the USB.
I am wondering why i can't just remove the first one (the power supply) without my external monitor turning off?
Why should that happen, when the monitor has its own power supply coming from a cord plugged into the wall, and why can it not just run off of my laptops battery?
The reason i'm asking is because i don't want to have the power supply constantly plugged into my laptop anymore. The last laptop that i did this with, the battery expanded and warped my computer.
I very rarely use my laptop as an actual laptop, so i like this setup where my laptop acts as sort of a desktop computer, with wireless keyboard and mouse connected.
i have no other way to drain the battery essentially, but when i unplug it, the external monitor turns black. is there some way to stop this from happening? I dont understand why it would effect the monitor when it should be getting it's power from the wall.

By design, the iphone will sync itunes content with ONE computer at a time. If you attempt to sync such content with a second computer, ALL itunes content will first be erased from your phone & then replaced with the content from the second computer. This is a design feature & cannot be overridden. Because you formatted your computer, the iphone will see your computer as a "new" computer.
1.First, disable auto sync when an ipod/iphone is connected, in preferences, in itunes, which in windows is in the edit menu.
2. Put one contact & one event in whatever programs you use for that purpose on your computer, they can be fake, doesn't matter, the important point is to have one entry in each.
3. Connect your phone, itunes running, DO NOT SYNC.
4. Go up to Store>Authorize this Computer.
5. Go up to File>Transfer Purchases. All of the purchased itunes content on your phone will be transferred, music you ripped on your own will not be transferred. You will have to use third party software to first extract that music from your phone BEFORE YOU DO ANYTHING. Same for photos not in your camera roll, the photo sync is one way...computer to phone. This is one example:
http://www.wideanglesoftware.com/touchcopy/index.php
6. Right click the phone in the device pane & select Reset Warnings.
7. Right click the phone, again, & select Backup.
8. Right click the phone, again, & select Restore from Backup. Select the backup you just made.
9. This MUST be followed by a sync to restore your itunes content, which you select as before from the various tabs.
You'll get a popup regarding your contacts & calendars asking to merge or replace, select merge.
This article details what's included in the backup you'll make & restore from:
http://support.apple.com/kb/HT1766

IMac and 24' LEd Display

Hi,
I'm sure this is really obvious but I have ordered a new iMac + LED display; will I get the cables I need to connect or will that be an additional purchase? The only cables for the Mini DisplayPort seem to be adapters and I can't see the likely connectors mentioned 'in the box'.
thanks.

This is a really nice setup from what I can tell. I wouldn't know for sure because my wife hasn't left the computer since we installed ours. She has had "network" problems at work and came home to work from home.
We put the LED display on a VESA arm to rais it an allow it to be rotated to portrait as well. Nice setup if you do photography or video stuff.
Cheers.

27" LED display drawing too much USB power?

I'm having the infamous "USB device is drawing too much power" issue, but in my case it's a little different. Whenever I plugin the USB cord from my 27" LED display to the MacBook, it results in the above error (too much power, USB is disabled).
I've narrowed down the following:
1. Happens on two different MacBook Pros.
2. Happens when LED display is powered from different outlets.
3. It seems 2 of the 3 USB ports on the back of the display are not working.
This started happening after I moved about a month ago and reconnected everything, including a USB Hub I was using previously. I also have a SD card reader, all of which was plugged in and ready to go. When I powered up everything, the lights on the Card Reader and USB were actually pulsing, which didn't look right so I immediately powered everything down. Checked all connections and tried again. Same thing happened, so I unplugged the card reader and USB hub.
At this point, I had my keyboard plugged into the monitor which is how it was prior (before my move). I powered up everything again and while waiting for the keyboard to come on (the keys are illuminated), I noticed it was actually VERY hot - the underside of the keyboard. So I unplugged it and had a little bit of a sonofa***** moment. The keyboard seemed fried. It wouldn't come on for anything, so I went and bought a new one.
Soon as I get home, I plugged the new keyboard directly into the laptop and ignored the external LED display. Everything seemed to work fine, so I tried plugging the external monitor in, but soon as I connected the USB cord... this error pops up every single time.
Is this a USB cord issue (on the LED display) or what? I'm at a loss of what could have happened, since when I moved everything was transported very carefully. The LED display was even in it's original retail box, so nothing was damaged in the move, USB cord included.
Any thoughts or suggestions would be appreciated. I know ultimately I may need to bring it in for repair (still within warranty as I purchased the display in May 2011)... but I'm trying this first incase anyone has any ideas that could help me avoid that hassle.

Smc reset sometimes addresses some power issues.
It is possible that when that first keyboard failed when plugged into the back of the display it somehow damaged the display usb ports.
If you are under warrantee, take it to apple and let them deal with it.

Anyone using the 24" LED Display

Just wondered if anyone here uses the new 24" LED Display with their 13" MacBook? How does it perform and look? Any issues with the latest 10.5.6 upgrade?

i am and i'm very happy with it. been working off laptop screens solely for years so having this when working from home is great.

Does 24" LED Display support HDCP?

Recently attempted to rent a movie from the iTunes store and the movie will not play and i get a message indicated one of more of my displays does not support HDCP (High bandwidth Digital Content Protection) I use a 24" LED display to extend my desk top from my 13" MacBook Pro (Mid 2009 build). Anyone experienced this issue? All firmware is up to date and I am running OS X Mountain Lion.
Thanks...

Thanks for the reponce Keanu, I have done a bit more to understand the issue and you are correct it has nothing to do with my LED display and everything to do with the mini display port of my MacBook Pro. The port does not support HDCP. This is really a bummer because there is no firmware update that will fix the issue either.
Thanks again...

24" LED display: height without attached stand?

I'm interested in the height of the 24" LED display, not including the attached stand. I'm considering this display for a confined space, using the optional VESA mounting adapter and a wall-mount.
Apple lists the height of the display as 18.84" but I suspect that includes the stand.
Would anyone with this display mind measuring its height, not including the stand?
Thanks!

Excellent - thank you!
I ended up calling Apple's online store people. They didn't have specs on file, so they found one to measure and gave me an "about 15 inches" measurement as relayed to the person on the phone. So it's good to get a real number from a real customer.
One interesting tidbit is they said it vents in from the bottom and out from the top, so to be careful with mounting. Shouldn't be a problem here but good to know.
Thanks again.

Leads to Connect 24-inch Apple LED Display to my PowerPC

I have a Mac Desktop Dual 2 GHz PowerPC G5 Serial CK626*V5V with version 10.5.8. What lead will connect my just purchased 24-inch Apple LED Display to my PowerPC?
<Edited by Host>

What lead will connect my just purchased 24-inch Apple LED Display to my PowerPC?
Click here for one. The link is to a PDF. Aside from a converter such as this, a graphics card with a Mini DisplayPort is needed.
(50828)

21.5" LED display...is it best to keep it on mid-brightness for longevity?

I love my new iMac. The size and quality of the new LED display is remarkable. I keep it on maximum brightness, but worry that that will wear it out after a couple of years. If I plan on keeping this machine for 3 years, should I lower the brightness to ensure that it will be just as bright 3 years from now?
Hugh

Hi Hugh
To help save energy and prolong the life of the graphics chip and display:
1. Go to: *System Preferences > Desktop & Screen Saver > Screen Saver* and set *Start screen saver:* to Never. +(just me, but they waste energy, pound the graphics chip and hog resources)+
2. Go to: *System Preferences > Energy Saver* and set the *Display sleep:* time down to around *10 to 15* min. +(for me, 5 min. works if it's not in use it sleeps)+
3. Go to: *System Preferences > Exposé & Spaces > Exposé* and set an *Active Screen Corner* to sleep the display. +(for me optional, if I forget auto Display sleep kicks in)+
On Jan 21 2010 my Early Core Duo will be 4 years old and I hope to have it for many more.
Dennis
Message was edited by: den.thed
However joudbren above has a valid point, I have a back lit display.

2 DIGIT LED DISPLAY FROM BCD

Similar Messages

Maybe you are looking for