IP Address

I was wondering if I could get into a computer with no access to the computer that you want to get into? I was thinking about an ip address. I want to use this to get back at a hacker that almost destroyed my computer!! (Thanks Norton for giving me his ip) he he he. Please answer

Topic by Jakeg   |  last reply


How to Change Address?

I have looked back through some past posts, but not through all of them, so I am sorry if someone has already answered this. I have moved and need to change my address, but I am not sure how to do it.  Can someone help me?  I need to know how to change my mailing address, not my email address.  Thanks

Topic by jnifrwebb   |  last reply


Subscription Email Address

I love this website and enjoy my weekly newsletter of new Instructables. Originally, I had them going to my spam-catcher email (I do that when I sign up for something new), but want it to come to my regular email now. My main account settings now has my regular email address, but the newsletter still went to the old one. Private messages and comment updates go to the new email just fine. Finally, I turned off the subscriptions to that old email address. Oops... Now I don't get the weekly at all! I tried to find where to subscribe to the newsletter and all I get is a page that is essentially for new accounts: it wants a NEW address and won't accept my current email address, saying it's already in use. Well no kidding! It's my email address and that's where I want the newsletter to go!!! So how the heck do I subscribe to the weekly newsletter using my current account settings' regular email address? {I originally posted this in the Help-FAQ section}

Topic by shamanwhitewolf   |  last reply


Email address change

How do I update my email, when I no longer have access to my old email account?

Topic by pyrocop1   |  last reply


change to website address?

Hi, if I choose to create my own website and then later on change my mind and want to hire a professional, will my web address be transportalbe to the new site the professionals created? As you can see I am a complete rookie at this :-)

Question by chrisdanlee   |  last reply


ESP8266 MEMORY ADDRESS

Hallo guys I have ESP8266 programmed to operate at MODBUS TCP / IP and PLC (LSIS) connected to router by Ethernet MODBUS. I made connection between them successfully (using P2P service found in PLC) through router, but the connection produce error. P2P service found to make connection between LSIS devices and other devices. This service requires inter the read and write memory address for ESP8266 with condition that the address must has 5 digit. Knowing that I use simple diode connection on GPIO pin-14. The problem is when I search for ESP8266 memory map addresses, I find it (0x60000360) 8 digit and this return error from PLC side. Please can any one help me?

Question by methaq_ali   |  last reply


tiny addressable components

Hello everyone, I've got a question and am hoping someone can point me to the right places to figure this out. I am an avid r/c tinkerer. A question I have though, is: Is it possible to take your standard r/c servo, and install something into it to make it addressable? Why I want to do this is that I want to be able to control things from my handheld radio system beyond the 6/7 channel systems I have now, but not have to buy a radio system that will cost upwards of a thousand dollars to do more with it. I know, it will probably be easier to buy the uber-radio and just shell out the cash...I'd rather learn how to create something like this myself and learn some more electronic gadgeteering along the way :) I don't even know if thats the right approach, so, if you have ideas on this I am all ears and would love to hear from you. Thanks so much for reading this and I am quite looking forward to hearing some ideas! :) -Mike

Topic by Ravenseye   |  last reply


Emails still going to old address

I changed my email address several weeks ago, but you're still sending your emails to my OLD email address, why?  I just checked my profile and my NEW email address is the only one listed. So, I do hope you'll fix this SOON, I won't be using my old email address at all, soon. Thanx

Topic by 70sford   |  last reply


How do I change my email address with Instructables?

Trying to change it with the "Update Profile / Unsubscribe" link does not work. (The only thing you cannot change there is your email)

Question by hellvig   |  last reply


How can I remove an old address from the internet (i.e. superpages.com)?

I need to remove an old business address from superpages.com. Does anyone know how to do this?

Question by    |  last reply


Someone is lurking on my life and I need to trace their IP address

Meh. Okay. So apparently in 2009 I sent nudes to my boyfriend, who then spammed them to various sites after we broke up. All in all, someone from Australia who knows my current boyfriend, is threatening that hes going to post these pictures up on websites and link them to my boyfriend. Now, I don't really care because it was in 2009 and we all have bodies and its not a huge deal. Just I was 16 then and I don't think nakkie pictures of 16 yearolds should be on the internet. so, he is harassing me on skype and I was wondering if I could get his ip address. I read some posts about this and they didn't seem too conclusive. I am just curious.

Topic by ki.bear   |  last reply


email

I've changed my email address but I still get your emails in the old account which will be closed soon.

Topic by artkennedy 


Email address change not taking effect

Last week I changed my email address, received an email at my old address to confirm the change, and when I look at my settings it shows the new email address, but instructables newsletters are still going to the old address? Can someone help please? Steve

Topic by sjsquirrel   |  last reply


IS IT SAFE GIVING MY ADDRESS TO '' INSTRUCTABLES '' ?

I have recently entered my instructables in many contests and if i win , is it safe giving my address to instructables plz answer i am new here !!!

Question by Dr_Cosmic   |  last reply


New email address and not receiving any newsletters.

Hi, i recently changed my address linked to my Instructables account, but i still get the newsletter in the old one. ¿Do i have to do something else, o what should i do? Thank you in advance.

Topic by sergioh101   |  last reply


Messed up Premium Purchase

I stupidly used the wrong email address when I signed up for the premium membership. Now I have the membership, but it's not connected to my login and account. How do I get this straightened out?

Topic by renzo64   |  last reply


web site build

Hi all guys and ladies ...  so glad i found this site looks like fun. I found you all here due to a search i did looking on tips of building and hosting my own web site, and what i read here in great detail with no fuzz i just thought was the bees knees. I do have one problem but, if i use my ip address to host my own server on an old machine and use a new pc for working here at home, the ip address will be the same, will this not lead to people trying to gain excess to my every day to day pc? jamstir.

Topic by jamstir   |  last reply


Updated email address - still getting emails to old address

I updated my email address in my profile over a week ago, and I still get emails to my old address.  I tried updating both the Settings>Email Alerts page and the Settings>Change Email page, but I continue to get emails at the old address. Any ideas how to fix this?  Thanks! Not sure if it matters, but I'm on Win7 and Chrome.

Topic by guaps   |  last reply


Current Address for Instructables HQ?

I am going to be in San Francisco on July 15th and 16th, and I am planning on visiting the offices of Instructables. I keep searching for a street address of the office, but there are three different ones. Could I get the current address, the hours it is open, and who is likely to be there? I would love to meet the guys behind one of my favorite websites!

Topic by arpoky   |  last reply


Can't change email address

My old aol email address has been turned off. I need to change my email address on my instructables account. But i need access to the old address to confirm the new address - which i don't have. Is there a way to change my email without having to confirm through my old address. I'm worried that I'm missing important info.

Topic by sensoryhouse   |  last reply


[vid] Addressable led strips

Greetings; I just finally got my sparkfun led strips working with the fastSPI code posted by Daniel Garcia. Not enough info to post an instructable yet -- What projects would you want to see done with this? I was using just bitbanging to make the arduino spit out the animations in software serial, and it was brutal hard on the processor -- barely had enough cpu to shift out the data, let alone calculate the animation.  Special thanks to the fastSPI code I found the hardware serial can do all the communication work and the processor can concentrate on animating. I will be posting a full ible but need more ideas! From my vid description: Got 64 RGB leds wired up using only 2 spi communicaton wires in excess of 100fps leaving tonnes of cpu overhead room for calculating the animation. *(I have to use delays to slow down the animation or its too fast to see with the eye, let alone capture with a camera) Strip: http://www.sparkfun.com/products/10312 (x2) Waterproof self-adhesive rgb addressable strips. INSANELY bright for 5050 leds. at full white 2 strips draws just under 2 amps/5 volts, they get a bit warm but nothing serious. uC: Arduino mega 1280; I found my duemilenove didn't have the storage capacity for this program. Anything 'uno' or better should do. Library: http://code.google.com/p/fastspi/ Special thanks to Daniel for writing his amazing library. Has support for many types of led strips and absolutely destroys software serial for getting the data out! This is the sample animation that comes with the library to get you started. It took just a bit of tweaking the software and wiring to get it working. Planned projects: Ambilight for computer Midi drum/keyboard visualizer Random party light/vu meter suggestions?

Topic by frollard   |  last reply


Individually Addressable Speaker Array

Hey! I had an idea for an array of many small speakers, each capable of playing different sounds so I could dynamically re-arrange which speaker is playing what. This would be paired with some LEDs and some water to make (what I hope will be) a fantastic visual effect. But of course all this is a bit over my head, so I'd like some feedback on my idea! After a bit of research, here's how I think I'll do it: General Concept Essentially what I'm trying to do is make a waveform generator with lots and lots of separate channels. I would hook up my microcontroller to several, multi-channel Digital to Analog Converters (DACs). The microcontroller would feed these DACs signals to generate the wave forms that I want for each individual speaker. The waveforms that the DACs output would each go through an extremely simple amplifier. The amplified signal would go to my speakers. I've attached a diagram that should give you a better idea of what I'm doing. Specifics The microcontrollers I'm looking at are the ChipKIT series from Digilent because I have access to a bunch of these. I'm currently planning on using the uC32, but I actually have access to pretty much all their other boards. The uC32 runs at 80MHz. The DAC I'm looking at is the AD5628 from Analog Devices. That's used in Digilent's PmodDA4, which I also have access to. Alternatively I might just order a bunch. They have 8 analogue outputs, and the SPI communication can run at 50MHz clock speed. I'm planning to have eight of these (for 8^2 total outputs). I haven't figured out what amplifier I'm going to use yet. It'll need to be simple and cheap, as I'm expecting to have 8^2 of them, but I'd also like one that can operate over a large band of frequencies. I've also attached two pictures of the speakers I'm planning to use. I kinda randomly acquired a lot of these, so I'd rather not switch to a different speaker type. According to Wikipedia, the highest note on a piano keyboard is a little over 4kHz. If I split the sinusoidal wave into 16 segments, that means an update frequency of 76kHz. This is way below my max operating speed of 50MHz so I think I can get away with it. Questions What am I doing wrong? I'm hardly an expert on any of this, so I'm certain there's a much simpler way. Are there ICs that do what I want? Maybe something that takes in a digital signal and outputs waveforms? This would be similar to how a servo controller would output different PWM signals, only changing the frequency rather than the duty cycle. What sort of amplifiers should I be looking at? This is my first time on the forum so please let me know if I'm doing anything wrong (or could do anything better).

Topic by JayWeeks   |  last reply


How do I address a letter to Ukraine?

Do i write the address in cyrillic writing or in english? how should it be formatted? can you give an example of how it should look?

Question by katherine luva 4 life   |  last reply


Email address changed to that of a different user

 I've just tried to turn my email alerts off, so I unticked all boxes and clicked "Update settings". When the page refreshed, all the boxes were still ticked but my email address had changed to that of another user, towelinmonk (www.instructables.com/member/towelinmonk/ ). I'm not sure if this user is actually now receiving my email alerts, but I thought I'd best report it anyway. I've changed it back now, by the way. As a side note, i've also had to switch to firefox from chrome to post this, chrome wouldn't let me post the topic (Win XP).

Topic by whatsisface   |  last reply


Is it possible to find the IP address of a Skype user?

Hi everyone, I was wondering if there is a way to find the IP address of a Skype user. Me and a lot of my friends have been getting heaps of people just saying "Hello! Please add me to your contact list" and then if you reply they say "How can you forget me, I want to meet with you, You can view my picture here..". (and that link redirects to a p0*n site, and it is the same link every time) I want to find their IP address to see if the same individual is doing it or if it is multiple people, because this is getting out of hand and just blocking them and reporting them won't help. I'm using a program called "SocketSniff" to find the IP addresses that Skype is using, but I can't seem to find any that are a home computer... They all seem to be servers. Any help finding who is doing this and helping me to find the IP will be greatly appreciated

Topic by thermoelectric   |  last reply


How can I change my home address? Answered

I just moved and instructables sends me stuff in the mail sometimes. I just got a Halloween card and it had to be re-directed. The post office will eventually stop doing this and I wont be able to get anymore stuff... how can I change my address?

Question by nepheron   |  last reply


Caftsman Club 3D Printer Sweepstakes - won't accept email address with dash

I tried ot enter the Caftsman Club 3D Printer Sweepstakes but the form will not accept my email address because it has a dash in the domain which is valid.  Please fix.

Topic by rwollin   |  last reply


How can I restrict visitors to certain areas of a website based on IP address? Answered

I want to create two directories on a website: one is only accessible from certain IP addresses, and the other one available to everyone except those IP addresses. I think that the .htaccess mod_rewrite would work best, but how should I do it?

Question by MePerson   |  last reply


Public Address System build Project

Salam and Greetings everyone, I am a university student and I need to build a good quality PUBLIC ADDRESS SYSTEM using simple 3.5mm jacks for mic input and spkr output and giving output on 2 to 5 speakers and controlling the output to speakers through switches enabling individual use and all at once  I would appreciate all help in form of advice, suggestions, links to websites and blogs, or text files videos anything... Thank you everyone in advance....

Question by General Talha   |  last reply


Does making a static ip to the the router, make the ip on the internet static? Answered

I have been running a server and have noticed that my ip to the router (192.168...) changes and the one displayed on the internet (94.1...) also changes. I have setup a static ip on the first port (0.2) and was wondering if when i connect to the internet each time the 94.1 etc that adress will change? People connect to my server via my ip adress and then my port number and I have noticed I have to keep giving it out as it changes.. So is there away to keep that ip static? or should it stay the same now? Many thanks Oscar

Question by oscarthompson   |  last reply


How Can We get MAC Address with the help of IP address ? How Can We trace IP Address ?

Hi , Suppose you got any harmful Email and you are getting continue same mail So this will  not good for you . So Can We trace IP address by Email  and IF We got IP address of system , So with the help of IP Can We know MAC address of system .......... I am asking this question because this our daily routine problem and with the help of we all people can get out with this problem .....  

Question by stardks   |  last reply


Updated e-mail address doesn't change in the newsletter mailing

Changed my profile's e-mail address and confirmed it, and it shows under my profile. However I still get newsletter e-mails under the old e-mail address. I assume they're two different databases, but then how do I delete the old address from the newsletter mailing database?

Topic by SAVAJ   |  last reply


How to hide my IP address ? Answered

i tried these apps-- hide my ip,mask my ip but they did not work whatismyip website shows my real ip address and google too.. How to hide my real ip address ???

Question by ishan udyoga   |  last reply


Addressable RGB Strip via USB?

Hi All, Im currently looking into RGB Addressable LED strips for my computer and the only option I can find is the NZXT Hue+ which is riddled with issues. Does anyone have information on how I would possibly control these via USB from inside my computer, or if that makes life complicated, over WiFi but powered from a SATA power cable?

Topic by K20Evo   |  last reply


Powering a lot of individually addressable LEDs

I have been toying with an idea for a while of making permanent holiday light fixtures with individually addressable LEDs. The problem I continually run up against is that these types of LEDs all run on 5v power, I believe because of the driver that controls them. They have high voltage AC strips, but they aren't addressable.  If I take Adafruit's "Dotstars" as an example, they require 60ma of power per led at full brightness. A typical holiday display may require up to 250 feet of lights. If those lights are spaced at a typical 2.75 in apart that's 1091 lights. This becomes 65455ma or 65.5 amps of power. That's a stupid amount of power required for some holiday lights. Are there any high voltage individually addressable leds on the market? Is such a thing even possible? If not, is there some type of wallwart that might help me solve this problem in a safe less power hungry way?

Topic by Richbai90    |  last reply


I2C addresses > 63 are not usable with atTiny85?

Hi I have a big problem with addressing multiple attiny85-chips with I2C: For what I know the attiny uses 7-bit addresses for communication. I am using the TinyWireS lib, which works perfectly fine for me, untill I am reaching address: '64' which is '1000000' in binary. The highest usable address should be '1111111'. Here is the attiny85 datesheet. This is what happens: Slave: Attiny85: switches led on or off when msg is received over I2C. Slaveaddress: 64 #include #include #define output (4) #define I2C_SLAVE_ADDR (64) //works if I2C_SLAVE_ADDR < 64 void setup() {   TinyWireS.begin(I2C_SLAVE_ADDR);   pinMode(output, OUTPUT); } volatile bool state = LOW; void loop() {   byte msg = -1;   if(TinyWireS.available())     msg = TinyWireS.receive();   if(msg == 1)     state = HIGH;   else if(msg == 0)     state = LOW;   else if(msg == 2)     state = !state;   digitalWrite(output, state); } Master: Arduino pro mini: sendMsg(0, true); //works! led on chip: 64 switches on sendMsg(64, true); //fails! led on chip: 64 is off. #include #define DEVICE (64) //0 works! void setup() {     Wire.begin(); } void loop() {     sendMsg(1, DEVICE);     delay(2000);     sendMsg(0, DEVICE);     delay(2000); } void sendMsg(int msg, int device) {     Wire.beginTransmission(device);     Wire.write(msg);     Wire.endTransmission(); } Have you any idea how to solve this problem?

Question by DELETED_MakiY2   |  last reply


individually addressable led DECORA switch

Greetings collective Instructables genius, Here's the deal, I have a kitchen,  I also have several strips of individually addressable LED's powered by the same supply.  I like the led's, I really the fade between teal and blue as it gives the impression that you're underwater.  At any rate, having anything other than a decora sized switch is out of the question.  I don't need another remote, or some box with switches on it to control the LEDs.  I'd really like a switch that can be mounted in a single gang electrical box, that can be covered by a decora faceplate.  I have a media cabinet where the power supply for the LED's is housed, and the switch can run to the supply in the cabinet.  I need at least 4 programs (like the underwater effect), though 8 would be ideal.  Any thoughts on how to approach this?  I'd spend upwards of $80 for a finished product.   Any input is appreciated.  Thank you Eric

Topic by legionmanchild   |  last reply


What is the instructables &quot;Suggestions&quot; email address? Answered

I have an idea for instructables to add, but the only email I can find is the service one, of there isn't an email, should i just pm it to an editor

Question by popewill   |  last reply


AT&T WiFi connection problem, help asap please!!

my computer and ipod touch seem to be fighting each other ip address wise, when one connects to the internet it steals the others internet connection and after a few minutes the device loses connection altogether. I've already set both devices to have private fixed ips .68 for one and .69 for the other. another thing is that when only one is connected on the 192.168.1.254 mainpage the device says it is the other, so when my computer is connected but not my ipod it says my ipod is connected and vise versa. my main problem is they lose connectivity after a few minutes. i have also disabled the wifi protected setup(which att told me would help solve my problems). If any other info is needed please tell me, i really need this solved!!

Question by miiwii3   |  last reply


how can i change my wiis ip address to a uk one? Answered

I have the internet channel and would like to be able to use the bbc iplayer but i live outside the uk

Question by sir-zeke   |  last reply


Antics help!! Please Read

Umm, i just found this website called antics3d.com, and the software that used to be able to be downloaded for free, you now have to have a registered email from befor the site closed back in 08. i just found the website today, so i dont have a registered email. i am hoping that if somebody has a registered email, they would let me use it to download the new antics v5.1 and content pack. i have already checked the torrent sites i know about, but if you have a registered email or torrent site that you know offers antics, or even are willing to send me the setup exe, please private message me telling me where to get it. thanks!

Topic by A.C.E.   |  last reply


arrays base address is 1000?.array is a[5][4]..then wat is the correct address of a[4][3]? ?

It's a question on C programming.  Please explain the answer.

Question by sanlee1990   |  last reply


Pinged computer names don't match actual computer IP address?

So at this school I go to, we have mac books, and we'd communicate to each other using SSH and VNC during class at times. To get the IP addresses (local) of each other, we'd ping the computer name of the person we wanted, the computer name being clearly visible on each of our mac books. From time to time, IP addresses would change, but that's not really much of a problem. Thing is, for a few people, their actual IP address is different to what we'd get when we ping them, and hence we'd accidentally end up in someone else's mac book instead of the one we intended. Does anyone have a clue as to what is going on here? Or a solution? (Other than getting them to go and find their IP addresses with "ifconfig" or through terminal?) We're using OS X 10.6.4, btw  Much appreciated

Question by .Unknown.   |  last reply


Newsletter being sent to old email address

I changed my email address in my account a while ago but am still receiving instructable newsletters at the old email address. Is there a different spot in my account that I have to change the email address for newsletters? Or is this a bug?

Topic by Redbuck   |  last reply


Does instructables.com sell our email addresses ?!!!

Hi, I subscribed to the instructables.com newsletter for only a couple of days (with an email address I hardly use) and since that I received a bunch of spams in my mailbox ! Weird coincidence, isn't it ? Does instructables.com sell our email addresses ?!!! >-(

Topic by PeanutFR   |  last reply


Very old e-mail address not updatable

I am about to get a new internet provider and a new e-mail address. For that reason I just tried to see if I could change my e-mail in my instructables profile. Unfortunately, I quickly realised that I have neglected this house-keeping task for some while. My old address stored here is waaaaay old, which means that the confirmation e-mail from you will fall into a black hole. Please send suggestion to schoeoen@gmx.de or schoon@hsva.de. Yours "all_thumbs"

Topic by all_thumbs   |  last reply


PROGRAMMING PIC MCU TO RETURN TO PREVIOUS ADDRESS

 HI GUYS, I NEED HELP HERE WITH CODE TO FLASH LEDS USING SWITCH STATEMENT, I`M NEW IN PROGRAMMING AND LEARNING THIS ON MY OWN, I KNOW HOW TO FLASH LEDS AND SET DIFFERENT FLASH PATTERNS, MY PROBLEM IS WHEN I SWITCH OFF MY LEDS/POWER  LETS SAY ON SWITCH CASE 5 AND SWITCH POWER BACK ON, MY PROGRAM GOES BACK TO SWITCH CASE 1, HOW DO I PROGRAM IT TO RETURN TO SWITCH CASE 5 WHEN I SWITCH POWER BACK ON? I MEAN I WANT MY CODE TO START WHERE I LEFT IT BECAUSE I DON`T WANT THE USE TO SET PATTERN EVERYTIME HE/SHE SWITCH ON THE LEDS. I`M USING PIC16F1782, PICKIT 3, MPLAB X IDE, MCC,XC8. THANK YOU IN ADVANCE 

Topic by AndrewN102   |  last reply


anything to address in this LED & car project design?

I'm in a time crunch for a LED light strip + car project and stuck with a mix of different lead/hook up wire types and was wondering if there's anything in my design (below) that I absolutely must fix/address: [1] 12v car battery <-- terminal fastened to 22 gauge solid copper hook up wire SOLDER to 18 gauge stranded silver colored lead --> 125V 10A AC switch NOTE: The battery to switch wire run is about 8 feet and the wire is sandwiched in Kapton tape, routed around the engine block's walls into the car's cabin where the switch resides [2] 125V 10A AC switch <-- 18 gauge stranded silver colored lead 3 WAY SOLDER to two (2) 18 gauge solid silver colored leads --> two (2) 12V DC to 5V DC 5A regulators [3a] 1 of 2 DC to DC regulator <-- 18 gauge solid silver colored lead 3 WAY SOLDER to two (2x) 22 gauge solid copper hook up wires --> [3a1] <-- FASTENED TERMINAL --> LED microcontroller [3a2] <-- SOLDER to contact --> RGB LED light strip (WS2811), 1st half of array [3b] 2 of 2 DC to DC regulator <-- 18 gauge solid silver colored lead SOLDER to 22 gauge solid copper hook up wires --> RGB LED light strip (WS2811), 2nd half of array (one regulator can't power all the LEDs in the array so that's why I'm splitting the power to them) NOTE: Both regulators' wire run (3a2 and 3b) to the LED strips is about 6 feet, the wire is also sandwiched in Kapton tape, routed around the engine block's walls and go from within the car's cabin to the front of the car essentially. Is there anything about this design that really needs changing (especially regarding the mixing of wire gauge and physical makeup)? Thanks in advance

Question by anuvanoob   |  last reply


Address LEDs on a LOL shield help... please?

A couple of the tutorials use the following arrays... http://code.google.com/p/lolshield/downloads/list I spent a couple hours trying to help out a friend and could not dumb the code down to address individual LEDs using the understood matrix below... uint16_t BitMap[][9] PROGMEM = { {1, 0, 0, 0, 0, 0, 0, 0, 0}, {3, 1, 0, 0, 0, 0, 0, 0, 0}, {7, 3, 1, 0, 0, 0, 0, 0, 0}, {15, 7, 3, 1, 0, 0, 0, 0, 0}, {31, 15, 7, 3, 1, 0, 0, 0, 0}, {63, 31, 15, 7, 3, 1, 0, 0, 0}, {127, 63, 31, 15, 7, 3, 1, 0, 0}, {255, 127, 63, 31, 15, 7, 3, 1, 0}, later in the code they use the following to 'fetch' the lines... for(line = 0; line < 9; line++)       {         data = pgm_read_word_near (&BitMap;[frame][line]);   // fetch data from program memory When I try to hi-jack the above line and use my 'own' numbers: data = pgm_read_word_near (&BitMap;[frame[1][3]);... it does not function.. I'm just trying to call out individual LEDs in response to external sensors and turn them ON and OFF with delays and such... any help breaking down this code? I understand the matrix but can't seem to call it out... thanks! HERE is the sample code: #include   //This is in the Arduino library int blinkdelay = 75; //This basically controls brightness. Lower is dimmer int runspeed = 20;   //smaller = faster int pin13 =13; int pin12 =12; int pin11 =11; int pin10 =10; int pin09 =9; int pin08 =8; int pin07 =7; int pin06 =6; int pin05 =5; int pin04 =4; int pin03 =3; int pin02 =2; const int pins[] = {   pin13,pin12,pin11,pin10,pin09,pin08,pin07,pin06,pin05,pin04,pin03,pin02}; const int ledMap[126][2] ={ {pin13, pin05},{pin13, pin06},{pin13, pin07},{pin13, pin08},{pin13, pin09},{pin13, pin10},{pin13, pin11},{pin13, pin12},{pin13, pin04},{pin04, pin13},{pin13, pin03},{pin03, pin13},{pin13, pin02},{pin02, pin13}, {pin12, pin05},{pin12, pin06},{pin12, pin07},{pin12, pin08},{pin12, pin09},{pin12, pin10},{pin12, pin11},{pin12, pin13},{pin12, pin04},{pin04, pin12},{pin12, pin03},{pin03, pin12},{pin12, pin02},{pin02, pin12}, {pin11, pin05},{pin11, pin06},{pin11, pin07},{pin11, pin08},{pin11, pin09},{pin11, pin10},{pin11, pin12},{pin11, pin13},{pin11, pin04},{pin04, pin11},{pin11, pin03},{pin03, pin11},{pin11, pin02},{pin02, pin11}, {pin10, pin05},{pin10, pin06},{pin10, pin07},{pin10, pin08},{pin10, pin09},{pin10, pin11},{pin10, pin12},{pin10, pin13},{pin10, pin04},{pin04, pin10},{pin10, pin03},{pin03, pin10},{pin10, pin02},{pin02, pin10}, {pin09, pin05},{pin09, pin06},{pin09, pin07},{pin09, pin08},{pin09, pin10},{pin09, pin11},{pin09, pin12},{pin09, pin13},{pin09, pin04},{pin04, pin09},{pin09, pin03},{pin03, pin09},{pin09, pin02},{pin02, pin09}, {pin08, pin05},{pin08, pin06},{pin08, pin07},{pin08, pin09},{pin08, pin10},{pin08, pin11},{pin08, pin12},{pin08, pin13},{pin08, pin04},{pin04, pin08},{pin08, pin03},{pin03, pin08},{pin08, pin02},{pin02, pin08}, {pin07, pin05},{pin07, pin06},{pin07, pin08},{pin07, pin09},{pin07, pin10},{pin07, pin11},{pin07, pin12},{pin07, pin13},{pin07, pin04},{pin04, pin07},{pin07, pin03},{pin03, pin07},{pin07, pin02},{pin02, pin07}, {pin06, pin05},{pin06, pin07},{pin06, pin08},{pin06, pin09},{pin06, pin10},{pin06, pin11},{pin06, pin12},{pin06, pin13},{pin06, pin04},{pin04, pin06},{pin06, pin03},{pin03, pin06},{pin06, pin02},{pin02, pin06}, {pin05, pin06},{pin05, pin07},{pin05, pin08},{pin05, pin09},{pin05, pin10},{pin05, pin11},{pin05, pin12},{pin05, pin13},{pin05, pin04},{pin04, pin05},{pin05, pin03},{pin03, pin05},{pin05, pin02},{pin02, pin05} }; uint16_t BitMap[][9] PROGMEM = { {1, 0, 0, 0, 0, 0, 0, 0, 0}, {3, 1, 0, 0, 0, 0, 0, 0, 0}, {7, 3, 1, 0, 0, 0, 0, 0, 0}, {15, 7, 3, 1, 0, 0, 0, 0, 0}, {31, 15, 7, 3, 1, 0, 0, 0, 0}, {63, 31, 15, 7, 3, 1, 0, 0, 0}, {127, 63, 31, 15, 7, 3, 1, 0, 0}, {255, 127, 63, 31, 15, 7, 3, 1, 0}, {511, 255, 127, 63, 31, 15, 7, 3, 1}, {1023, 511, 255, 127, 63, 31, 15, 7, 3}, {2047, 1023, 511, 255, 127, 63, 31, 15, 7}, {4095, 2047, 1023, 511, 255, 127, 63, 31, 15}, {8191, 4095, 2047, 1023, 511, 255, 127, 63, 31}, {16383, 8191, 4095, 2047, 1023, 511, 255, 127, 63}, {16383, 16383, 8191, 4095, 2047, 1023, 511, 255, 127}, {16383, 16383, 16383, 8191, 4095, 2047, 1023, 511, 255}, {16383, 16383, 16383, 16383, 8191, 4095, 2047, 1023, 511}, {16383, 16383, 16383, 16383, 16383, 8191, 4095, 2047, 1023}, {16383, 16383, 16383, 16383, 16383, 16383, 8191, 4095, 2047}, {16383, 16383, 16383, 16383, 16383, 16383, 16383, 8191, 4095}, {16383, 16383, 16383, 16383, 16383, 16383, 16383, 16383, 8191}, {16383, 16383, 16383, 16383, 16383, 16383, 16383, 16383, 16383}, {16383, 16383, 16383, 16383, 16383, 16383, 16383, 16383, 16383}, {16382, 16383, 16383, 16383, 16383, 16383, 16383, 16383, 16383}, {16380, 16382, 16383, 16383, 16383, 16383, 16383, 16383, 16383}, {16376, 16380, 16382, 16383, 16383, 16383, 16383, 16383, 16383}, {16368, 16376, 16380, 16382, 16383, 16383, 16383, 16383, 16383}, {16352, 16368, 16376, 16380, 16382, 16383, 16383, 16383, 16383}, {16320, 16352, 16368, 16376, 16380, 16382, 16383, 16383, 16383}, {16256, 16320, 16352, 16368, 16376, 16380, 16382, 16383, 16383}, {16128, 16256, 16320, 16352, 16368, 16376, 16380, 16382, 16383}, {15872, 16128, 16256, 16320, 16352, 16368, 16376, 16380, 16382}, {15360, 15872, 16128, 16256, 16320, 16352, 16368, 16376, 16380}, {14336, 15360, 15872, 16128, 16256, 16320, 16352, 16368, 16376}, {12288, 14336, 15360, 15872, 16128, 16256, 16320, 16352, 16368}, {8192, 12288, 14336, 15360, 15872, 16128, 16256, 16320, 16352}, {0, 8192, 12288, 14336, 15360, 15872, 16128, 16256, 16320}, {0, 0, 8192, 12288, 14336, 15360, 15872, 16128, 16256}, {0, 0, 0, 8192, 12288, 14336, 15360, 15872, 16128}, {0, 0, 0, 0, 8192, 12288, 14336, 15360, 15872}, {0, 0, 0, 0, 0, 8192, 12288, 14336, 15360}, {0, 0, 0, 0, 0, 0, 8192, 12288, 14336}, {0, 0, 0, 0, 0, 0, 0, 8192, 12288}, {0, 0, 0, 0, 0, 0, 0, 0, 8192}, {0, 0, 0, 0, 0, 0, 0, 0, 0}, {18000} }; void setup() {   blinkall(2); // useful for testing } void loop() {   DisplayBitMap(); } void turnon(int led) {   int pospin = ledMap[led][0];   int negpin = ledMap[led][1];   pinMode (pospin, OUTPUT);   pinMode (negpin, OUTPUT);   digitalWrite (pospin, HIGH);   digitalWrite (negpin, LOW); } void alloff() {   DDRD = B00000010;   DDRB = B00000000; } void DisplayBitMap() {   boolean run=true;   byte frame = 0;   byte line = 0;   unsigned long data;   while(run == true) {     for(int i = 0; i < runspeed; i++)     {       for(line = 0; line < 9; line++)       {         data = pgm_read_word_near (&BitMap;[frame][line]);   // fetch data from program memory         if (data==18000){           run=false;         }         else for (byte led=0; led<14; ++led) {           if (data & (1<             turnon((line*14)+led);             delayMicroseconds(blinkdelay);             alloff();           }           else {             delayMicroseconds(blinkdelay);           }         }       }                  } frame++;    } } void blinkall(int numblink) {   alloff(); 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