Stepper Enable Answered

Seems my completed code is not completed yet. I need to enable the stepper. I added enable_pin = 13 so it will spin free. It works with the push button until the keypad is used the no more button pin, but will continue to work with the keypad properly.  Is there a correct way to use enable for 2 inputs, button and keypad? #include #include #include Password password = Password( "4444" ); //password to unlock door, can be changed const byte ROWS = 4; // Four rows const byte COLS = 3; // columns const int stepsPerRevolution = 200;  // change this to fit the number of steps per revolution // Define the Keymap char keys[ROWS][COLS] = { {'1','2','3',}, {'4','5','6',}, {'7','8','9',}, {'*','0','#',}, }; byte rowPins[ROWS] = { 5, 4, 3, 2 };// Connect keypad ROW0, ROW1, ROW2 and ROW3 to these Arduino pins. byte colPins[COLS] = { 8, 7, 6,};// Connect keypad COL0, COL1 and COL2 to these Arduino pins. Stepper myStepper(stepsPerRevolution, 9,10,11,12);            int enable_pin = 13; int button_pin = A0; int button_pinstate = 0; // variable to store current pir state //int lastpirstate = 0; // variable to store last pir state int lastbutton_pinstate = 0; int pos = 60; int pos2 = -60; // Create the Keypad Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );   unsigned long offtime;   boolean  helper_light_is_on = false; // helper light off        void setup(){                                                              myStepper.setSpeed(60);  // set the speed at 60 rpm:   pinMode( button_pin, INPUT);   pinMode(enable_pin, OUTPUT);   digitalWrite(enable_pin, LOW);   digitalWrite(button_pin, HIGH); // pull-up   Serial.begin(9600);   Serial.write(254);   Serial.write(0x01);   delay(200);   pinMode(15, OUTPUT);  //Helper light   pinMode(16, OUTPUT);  //green light   pinMode(17, OUTPUT);  //red light     keypad.addEventListener(keypadEvent); //add an event listener for this keypad } void loop() { button_pinstate = digitalRead(button_pin);   if(button_pinstate != lastbutton_pinstate) {     if(button_pinstate == LOW) {       digitalWrite(enable_pin,HIGH);     myStepper.step(pos);      } else{        myStepper.step(pos);        delay(2000);        myStepper.step(pos2);         digitalWrite(enable_pin,LOW);     } }     static int counter = 0;     if ((++counter & 0x3f) == 0)     Serial.println();     delay(100);     keypad.getKey();     myStepper.step(0);     process_helper_light(); } void keypadEvent(KeypadEvent eKey) {   switch (keypad.getState())   {     case PRESSED:       // a key is pressed so light the helper light       helper_light_is_on = true;       digitalWrite(15,HIGH);       offtime = millis() + 5000;  // set the offtime for 30 seconds in the future             Serial.print(" enter: ");       Serial.println(eKey);       delay(10);       Serial.write(254);       switch (eKey)       {         case '*':           checkPassword();           delay(1);           break;         case '#':           password.reset();           delay(1);           break;         default:           password.append(eKey);           delay(1);           }   } } void checkPassword() {   if (password.evaluate())  //if password is right unlock door   {      Serial.println(" Accepted");     Serial.write(254);     delay(10);      digitalWrite(enable_pin,HIGH);     myStepper.step(pos);     Serial.print(" open ");     digitalWrite(16, HIGH);//turn on green led     delay(2000); //wait 5 seconds     digitalWrite(16, LOW);// turn offgreen led     myStepper.step(pos2);      digitalWrite(enable_pin,LOW);   }    else   {     Serial.println(" Denied"); //if passwords wrong keep door locked     Serial.write(254);     delay(10);     myStepper.step(0);     Serial.println(" locked ");         digitalWrite(17, HIGH); //turn on red led     delay(2000); //wait 5 seconds     digitalWrite(17, LOW);//turn off red led   digitalWrite(enable_pin,LOW);     }  //Closes first else }  //Closes Check password // this routine turns off the light when the timer expires void process_helper_light(void) {   if (helper_light_is_on)   {     if (millis() >= offtime)     {       digitalWrite(15,LOW);  //turn off the helper light       helper_light_is_on = false;     }   } }

Question by WWC   |  last reply


Wifi enabled remote

Hi, I have a remote for my fireplace.  It uses a RF of 303.87 mhz.  I was trying to think of a way to build something that could recieve a message over wifi that would then trigger the 'buttons' on the remote.  I found some RF receiver/transmitters but everything is for 315 or 430 mhz.  Will those work for 303.87? Or was this remote designed to not be easily cloned?

Topic by FrankA2   |  last reply


ok at my school they block right click so i cant change my wallpaper so how do i enable it?

Ok at my school they block right click so i cant change my wallpaper so how do i enable it?

Question by    |  last reply


4017 clock enable not working? Answered

Hi. I have a 4017 chip taking clock inputs from a de-bounce switch circuit. I have been trying to get the first two outputs on, one after another, with the second of these o-p's putting pin 13 (clock enable) high which I thought freezes the chip in effect. However this doesn't seem to be happening with my circuit. I know everything is in the right place. Reset is held low, I have one led on pin 2 and one on pin 4, both with appropriate resistors. I had the clock enable on o-p 4 and that worked. I repeatedly pressed the button and the led's didn't come on. But with clock enable on o-p 3, I presses the button and the first led came on after about 9 presses.  If someone could give me some pointers it would be greatly appreciated.  Many thanks 

Question by LED Maestro   |  last reply


How do i enable aero in windows 7 RTM?

I just got Windows 7 RTM(legally) installed, activated, genuine, and all that.(Coming from the Release canidate) But only one thing is wrong, The aero, No Aero what-so-ever, I am stuck with this windows basic theme. I tried everything, From registry hacks to trying to enable it in the control panel, nothing works. Any ideas? Thanks ~ReCreate

Question by ReCreate   |  last reply


Use of enable on intelligent LED displays. Answered

I've found some early intelligent LED displays (datasheet here, I have confirmed I have the decimal-only variant) and have been trying to load digits onto them using the enable input. Currently, they will display whatever value is applied to the input pins when power is applied, but changing the value requires interrupting power to the display so it restarts with the new value. When enable is pulled to 0V, the display turns off and will not turn back on until enable has been released and the display has been restarted. The rise time of the power supply seems to be important in whether the display will start properly, as the display will usually not start without at least a10uF capacitor on the power supply.  Also, the decimal point is non functional. How do I get the decimal point and the enable input to work so that I don't have to switch the whole display on and off? Thanks in advance for any ideas.

Question by The Skinnerz   |  last reply


What are the "Enable Input" pins on a decoder? Answered

I'm trying to multiplex with an arduino and a 74HC238N decoder. on the datasheet I was looking at I saw that besides the 8 outputs, 3 inputs, GND and Vcc there were also 3 "Inable Input" pins, that I couldn't figure out what they do. Can somebody please explain? Thanks. 

Question by yonch   |  last reply


reclying old wacom enabled laptop ?

Hey guys , firstly let me introduce myself  my name is virgil and im student on a budget :P and new to these forums  My dilema : i have ahad a hp tx2500 since 2008 , to be honest im surprised its lasted this long , anyways its a netbook/convertable that has a screen that folds down onto the keyboard , it is  touch and wacom active digitiser enabled  and recently the gpu on it has failed just like 90% of these models do , so my question is simple   can i use the wacom digitiser unit from behind the screen and put it into another laptop/convertable  screen) unfortuneatly i dont have 100's of euro to spend buying another wacom enabled laptop or tablet as now theyre around 600 euro at minimum , i can however afford to buy a cheap 12.1inch laptop (note the wacom digitiser module im trying to recycle is made for a 12.1 inch screen) i have seen the digitiser panel for myself and it very very thin ,so is there any way to integrate it into another device ? or maybe even somehow connect a usb to the panel and attach it to a laptop that way ? if so any recommendations as to how to do this or what laptop i could modify ? any help at all would be greatly appreciated  thanks 

Topic by vchircu   |  last reply


Wi-fi enabled window shutters

I want to automate (4)  sets of window shutters (called Plantation shutters.). I have the mechanical parts worked out which I plan to power with a servo motor on each.  Can someone help me work this out? I am somewhat handicapped now and have difficulty getting around from room to room.  There are a total of (22) actual shutters, but I will have the shutters on each window linked together with a rod powered by a positioning servo...four windows...four servos.  The operation can be simultaneous.  I do not need to operate them separately. Thank you for any help you can give.

Topic by hrp1937 



What is the function of "Enable Input" pin in a multiplexer?

I was studying Multiplexers and I found this term in the circuit. I cannot understand what is it used for.

Question by JalanshM   |  last reply


How do I enable Auto Renew?

I see a lot of questions about turning off Auto Renew, but in my case, I want to turn it on.  How do I do that?  I can't find any place in my profile or settings. Thanks

Topic by ve3joc   |  last reply


How do you enable mms on an iphone?

My aunt gave me her old iphone 3g after she upgraded iphones. I have a feature phone so i decided to put my sim in the iphone and use it with data turned off. I cant sent mms messages tho. I have it jail-broken if theirs some way to solve it that way or even beter not that way.  Thanks in advance

Question by zigzagchris   |  last reply


What happens if you enable another promo code

Right now I have a 3 month pro membership, but I got another 1 year pro membership for being a finalist in the epilog contest.  What happens if I enable the 1 year membership.  Will it just add on, or will is "erase" the 3 months, and just be a year?  I am pretty sure that it will just tack on, but I just wanted to be sure that there wasn't a bug.  Thanks in Advance! AI (soon to be TTR)

Topic by JaredsProjects   |  last reply


Pro can't enable 'author intro' tick box

It's not as if I've got anything interesting to say, but when I tick the 'author intro' & click save settings, nuttin' happens.Error in page says:Line:484Char: 3Error: 'feedBack' is undefinedCode:0URL: https://www.instructables.com/you/customizeI'm using IE 6 SP2 on winXP.

Topic by tim_n   |  last reply


Will an update for/ or rooting my phone will enable mhl support?

Hello everybody! I just bought a mhl cable for my mobile phone, but after connecting it, my tv doesn't show me anything. I searched my phone spec's and I found out that my phone doesn't support mhl. Such a shame! But then I was wondering, my phone runs on android jellybean. If I upgrade it to android KitKat, would I then be able to use the cable? Or should I just root my phone? (Does any of you have a good rom for me that supports mhl?) I have searched a couple of hours on google but it didn't gave me some answers. I hope you guys can help me. My phone is a Samsung Galaxy S4 mini (GT9195) with jellybean on it.           

Question by lukeD   |  last reply


Please how do I enable a level sensitive interrupt for my PIC on mikro c? Answered

In all the sites I have checked, its only the INTEDG command to enable  rising or falling edge interrupt. Please how can I enable a level triggered interrupt on my PIC18F14K22 with mikroc compiler? Thank you. 

Question by ikechukwu.dimobi   |  last reply


How do you enable the hdmi port on your computer?

I have a laptop with a hdmi port I have read elsewhere that I need to 'enable' it in order for it to be used How do I do this? and is it an input or an output or both?

Question by Jareadx   |  last reply




how do i get out of guest in xp pro with auto log in enabled? I m stuck

I  enabled auto log in from contol usrspassword2 but forgot to re enable admin acct so now im am stuck in guest HELP

Question by tonygirl   |  last reply


Make a pair of bluetooth-enabled devices that communicate with one another?

My question is if it's possible to build such a pair of devices, that would sustain a two-way communication channel between them. Basically, both devices would have to be a central AND a peripheral. Specifically, I need it for testing their reactions to each others proximity. (So that they would both need to react simultaneously.) And if it's possible, how? (At least some literature.) Thanks!

Question by dehumanise   |  last reply


Extend WiFi antenna for Lenovo netbook S10 that is WiFi enabled

I'll be in a rental apt. in Barcelona and want to extend my WiFi range. Also total newbie to WiFi. Purchased a Lenovo S10 with built-in WiFi. Read Wambat7's "kitchen strainer" suggestion at:https://www.instructables.com/id/usb-wifi-antenna/Given that my S10 is WiFi enabled can I still try Wombat7's suggestion and buy an external USB wireless Network Adapter to try for extended antenna range? Will my netbook automatically 'deal' with both built-in and exernal WifFi adapters and use the one with best antenna reach?If the above is a no go because my S10 has internal WiFI is there any way to extend antenna reach for the S10's built-in wireless adapter?

Question by worldromer   |  last reply


Hi, Does this video firmware upgrade enable the video to handle the classic 80GB hard drives? Thanks in advance.?

I am referring to the video upgrade to classic firmware. Thanks.

Question by    |  last reply


My desktop is conected to my home network but cant access the internet?

Yesterday my desktop was working fine and could conect to the internet no problem, today it will connect to the network but has no internet access. My laptop and phone both connect and have internet just fine. I have reset my router and modem and that didnt help. I changed it so my Ip addess and DNS where not automatic and that did nothing. Currently it is set back to automatic and it is giving me no default gateway and the IPv4 Address is not what it should be. Like i said earlier, i have no idea what could have caused this as it just happened when i turned on my pc this morning.   Here is my Ipconfig /all from my desktop (the ipconfig /all for my laptop is below) Microsoft Windows [Version 6.1.7601] Copyright (c) 2009 Microsoft Corporation.  All rights reserved. C:\Users\Josh>ipconfig /all Windows IP Configuration    Host Name . . . . . . . . . . . . : Carius    Primary Dns Suffix  . . . . . . . :    Node Type . . . . . . . . . . . . : Hybrid    IP Routing Enabled. . . . . . . . : No    WINS Proxy Enabled. . . . . . . . : No Wireless LAN adapter Wireless Network Connection 2:    Media State . . . . . . . . . . . : Media disconnected    Connection-specific DNS Suffix  . :    Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter    Physical Address. . . . . . . . . : 26-FD-52-9D-A8-D5    DHCP Enabled. . . . . . . . . . . : Yes    Autoconfiguration Enabled . . . . : Yes Wireless LAN adapter Wireless Network Connection:    Connection-specific DNS Suffix  . :    Description . . . . . . . . . . . : Qualcomm Atheros AR946x Wireless Network Adapter    Physical Address. . . . . . . . . : 24-FD-52-9D-A8-D5    DHCP Enabled. . . . . . . . . . . : Yes    Autoconfiguration Enabled . . . . : Yes    Link-local IPv6 Address . . . . . : fe80::9800:2500:b98e:4c7f%12(Preferred)    Autoconfiguration IPv4 Address. . : 169.254.76.127(Preferred)    Subnet Mask . . . . . . . . . . . : 255.255.0.0    Default Gateway . . . . . . . . . :    DHCPv6 IAID . . . . . . . . . . . : 371522898    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-49-24-DF-94-DE-80-A0-6C-BD    DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1                                        fec0:0:0:ffff::2%1                                        fec0:0:0:ffff::3%1    NetBIOS over Tcpip. . . . . . . . : Enabled Ethernet adapter Local Area Connection 2:    Media State . . . . . . . . . . . : Media disconnected    Connection-specific DNS Suffix  . :    Description . . . . . . . . . . . : Intel(R) Ethernet Connection I217-V    Physical Address. . . . . . . . . : 94-DE-80-A0-6C-BF    DHCP Enabled. . . . . . . . . . . : Yes    Autoconfiguration Enabled . . . . : Yes Ethernet adapter Local Area Connection:    Media State . . . . . . . . . . . : Media disconnected    Connection-specific DNS Suffix  . :    Description . . . . . . . . . . . : Intel(R) I210 Gigabit Network Connection    Physical Address. . . . . . . . . : 94-DE-80-A0-6C-BD    DHCP Enabled. . . . . . . . . . . : Yes    Autoconfiguration Enabled . . . . : Yes Tunnel adapter Reusable ISATAP Interface {D48AD600-C4B6-4AFD-B2FC-BF9B507A9070}:    Media State . . . . . . . . . . . : Media disconnected    Connection-specific DNS Suffix  . :    Description . . . . . . . . . . . : Microsoft ISATAP Adapter    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0    DHCP Enabled. . . . . . . . . . . : No    Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.{C53BE975-812F-49A0-9284-42BB4AB1439B}:    Media State . . . . . . . . . . . : Media disconnected    Connection-specific DNS Suffix  . :    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0    DHCP Enabled. . . . . . . . . . . : No    Autoconfiguration Enabled . . . . : Yes Tunnel adapter Local Area Connection* 12:    Media State . . . . . . . . . . . : Media disconnected    Connection-specific DNS Suffix  . :    Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0    DHCP Enabled. . . . . . . . . . . : No    Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.{529D79F7-85B4-402F-8161-4C3646A74DB3}:    Media State . . . . . . . . . . . : Media disconnected    Connection-specific DNS Suffix  . :    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #5    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0    DHCP Enabled. . . . . . . . . . . : No    Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.{767C8613-F418-4EAE-808A-A34E5B710604}:    Media State . . . . . . . . . . . : Media disconnected    Connection-specific DNS Suffix  . :    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #6    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0    DHCP Enabled. . . . . . . . . . . : No    Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.{FCB4E177-CE0A-4BD2-92F4-E58DC452910D}:    Media State . . . . . . . . . . . : Media disconnected    Connection-specific DNS Suffix  . :    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #7    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0    DHCP Enabled. . . . . . . . . . . : No    Autoconfiguration Enabled . . . . : Yes C:\Users\Josh> here is my Ipconfig /all from my laptop Microsoft Windows [Version 6.1.7601] Copyright (c) 2009 Microsoft Corporation.  All rights reserved. C:\Users\Josh ^.^>ipconfig /all Windows IP Configuration    Host Name . . . . . . . . . . . . : fox    Primary Dns Suffix  . . . . . . . :    Node Type . . . . . . . . . . . . : Peer-Peer    IP Routing Enabled. . . . . . . . : No    WINS Proxy Enabled. . . . . . . . : No Ethernet adapter Local Area Connection 2:    Media State . . . . . . . . . . . : Media disconnected    Connection-specific DNS Suffix  . :    Description . . . . . . . . . . . : TAP-Win32 Adapter OAS    Physical Address. . . . . . . . . : 00-FF-C7-25-E0-13    DHCP Enabled. . . . . . . . . . . : Yes    Autoconfiguration Enabled . . . . : Yes Wireless LAN adapter Wireless Network Connection 4:    Connection-specific DNS Suffix  . :    Description . . . . . . . . . . . : Intel(R) WiFi Link 5100 AGN    Physical Address. . . . . . . . . : 00-22-FB-C5-7B-2E    DHCP Enabled. . . . . . . . . . . : Yes    Autoconfiguration Enabled . . . . : Yes    Link-local IPv6 Address . . . . . : fe80::ecc3:343d:c0af:e4d5%17(Preferred)    IPv4 Address. . . . . . . . . . . : 192.168.1.5(Preferred)    Subnet Mask . . . . . . . . . . . : 255.255.255.0    Lease Obtained. . . . . . . . . . : Sunday, August 24, 2014 10:33:20 AM    Lease Expires . . . . . . . . . . : Monday, August 25, 2014 10:33:16 AM    Default Gateway . . . . . . . . . : 192.168.1.1    DHCP Server . . . . . . . . . . . : 192.168.1.1    DHCPv6 IAID . . . . . . . . . . . : 385884923    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-AB-13-7B-40-61-86-B0-1E-81    DNS Servers . . . . . . . . . . . : 192.168.1.1    NetBIOS over Tcpip. . . . . . . . : Enabled Ethernet adapter Local Area Connection:    Media State . . . . . . . . . . . : Media disconnected    Connection-specific DNS Suffix  . : domain_not_set.invalid    Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller    Physical Address. . . . . . . . . : 40-61-86-B0-1E-81    DHCP Enabled. . . . . . . . . . . : Yes    Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.coloradomesa.edu:    Media State . . . . . . . . . . . : Media disconnected    Connection-specific DNS Suffix  . :    Description . . . . . . . . . . . : Microsoft ISATAP Adapter    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0    DHCP Enabled. . . . . . . . . . . : No    Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.{C725E013-5059-40EB-9887-B52E2A9F7700}:    Media State . . . . . . . . . . . : Media disconnected    Connection-specific DNS Suffix  . :    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0    DHCP Enabled. . . . . . . . . . . : No    Autoconfiguration Enabled . . . . : Yes Tunnel adapter Teredo Tunneling Pseudo-Interface:    Media State . . . . . . . . . . . : Media disconnected    Connection-specific DNS Suffix  . :    Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0    DHCP Enabled. . . . . . . . . . . : No    Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.domain_not_set.invalid:    Media State . . . . . . . . . . . : Media disconnected    Connection-specific DNS Suffix  . :    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0    DHCP Enabled. . . . . . . . . . . : No    Autoconfiguration Enabled . . . . : Yes C:\Users\Josh ^.^>

Question by starfox195   |  last reply


L293d and extrnal powersupply issue !!

My main problem here that i have a doubt that tinkercad can go somehow wrong ! In this connection that i think is right , the l293d burns beacuse enable pin has higher voltage than powersupply pin or vc2 . But in conncection the 9v battery is with vc2 not the enable and the multimeter shows that , is there any thing can be wrong ?? (Enable is connected to arduino directly to send pwm values )

Topic by mohamedsaad194   |  last reply


Two wireless routers + two wired (not wifi enabled) phones = personal wireless telephone service?

Is it possible to take two wireless routers, the somehow connect two telephones and then create you own personal wireless telephone service?

Question by baudeagle   |  last reply


L293d and extrnal battery issue !!

My main problem here that i have a doubt that tinkercad can go someway wrong ! In this connection that i think is right , the l293d burns beacuse enable pin has higher voltage than powersupply pin or vc2 . But in conncection the 9v battery is with vc2 not the enable and the multimeter shows that , is there any thing can be wrong ?? (Enable is connected to arduino directly to send pwm values )

Question by mohamedsaad194   |  last reply


How can I use my win2000 wireless laptop to connect to my original xbox live?

I tried enabling ICS, but I get an error message "internet connection sharing cannot be enabled. The lan connection selected as the private network is either not present, or is disconnected from the network. Please ensure that the LAN adapter is connected before enabling ICS" its windows 2000 and a regular xbox, help me ;-) please.

Question by bigb62533 


Make a Bluetooth USB Dongle out of a bluetooth enabled Cell Phone?

Is this possible, for my to hack a bluetooth phone and use it as a USB dongle for my laptop? If so, someone should make an instructable out of it and it will get a butt load of views.

Topic by MaltiK   |  last reply


Sending email from wifi-enabled Arduino via Raspberry Pi?

I want to put instrumentation on a number of appliances and systems around the house by using wifi-enabled Arduinos. The Arduinos would send me notifications of status changes by texting my cell phone. In order to do this, I need to be able to send email from the Arduinos. I would prefer to use raw (command line) SMTP, but I'd prefer to avoid encryption to keep it simple. This brings up the problem of sending my email login password in the clear, which I also don't want to do. So, it occurred to me that I could set up a raspberry pi as a local mail server, send unencrypted mail to it, and have it forward encrypted mail to my email account. However, so far in my reading it seems that I have to have a domain name for the server to be able to set it up. But I don't want incoming mail at all, which would be the reason for setting up a domain. Is there a way to set up an outbound-only, domain-free mail transfer agent on a Raspberry Pi? Or is there a better way altogether? Thanks

Question by TheGear   |  last reply


.what's the problem?

The network is fully functional and the wireless laptop connection is enabled, but the laptop cannot connect to the network.

Question by mbasa.ntshili   |  last reply


I have a question about those wireless enabled USB print servers

I've seen these USB to Wi-Fi adaptors and I'm wondering if they act like wireless USB ports. The gist... I'm going to use a USB interface board and I want to know if I can use a wi-fi print server to make my control a robot via wireless. Any suggestions are welcomed.

Question by ry25920   |  last reply


How do I enable shell user theme extension in gnome 3?

I am new to ubuntu and am using gnome 3 for my desktop in ubuntu 11.10.  I can change the theme and window theme in advanced settings (a.k.a. gnome tweak) but next to the drop down menu to select the shell theme there is an icon with an exclamation point.  When you mouse over it, it says "shell user theme extension not enabled"  How do I fix this so I can change the shell theme?  Like I said before i can change the window, gtk, and icon themes.      Thanks in advance!!!

Question by Tree Hugger   |  last reply


firefox? Answered

what is a good add on for firefox that enables touch zoom pinch and that type of stuff for windows firefox version  3.6?

Question by BIGHAIRYDUDE   |  last reply


RSS feeds for your favorites.

I think it would be a good idea to enable RSS feeds for your favorites. This way, I can add them to my google reader and posterous much easier and faster. There are other uses as well, but thats the one I can think of off hand. It would enable more people to see good instructables, and promote sharing even more than before!

Topic by rockhardmj   |  last reply



Can any one identify this component? Answered

I find it a lot on sound enabled electronics PCBs. It is this black circle on the board.

Question by Zem   |  last reply


How do I pair two blue tooth enabled devices that werent meant to be paired?

I want to pair a headset with a small speaker so that I can speak into the headset and through the speaker over a distance, kinda like an intercom system or a one way walkie talkie. So I could put the speaker in something, for ex,  like a trash can and trick people into thinking someone is in it.

Question by ecsaul23   |  last reply


Why is login to Instructtables blocked in Firefox?

I am running with NoScript, and have enabled all but the obvious ad services.

Question by phillipnolan   |  last reply


How can i host a html enabled chat server on windows, custom help.

Hello, i am trying to run a html in browser chat server, and i am trying to host it on my windows 7 desktop. Can someone please help me setup, the chat server step by step. I have allready googled how to set it up but i couldnt understand any of them, so i literally need a step by step tutorial please. All help is appreciated. Thx 

Question by Genius 470 


Bluetooth finger print reader

I need a design (better yet an operating) hand held, battery operated bluetooth enabled finger print reader. That is, the bluetooth enabled finger print reader would store one finger print and then compare the person usign the reader to the print stored. If the prints matched it woudl send out an approval code. I am sure someone out there could make one. How can I contact that person? 

Topic by Bruce747   |  last reply


my query is that, i have a usb bluetooth dongle, is it posible to play song through it with a bluetooth enable laptop

Hi every one, few days ago i made a usb mp3 player and is working fine........... my query is that, i have a usb bluetooth dongle, is it posible to play song through it with a bluetooth enable laptop. when i m trying to connect bluetooth dongle with usb mp3 player the LED of bluetooth dongle doesn't blink

Question by narinder105   |  last reply


Finding non live wires?

I have had new wiring put in my house but I can't remember were they are, is there a piece of equipment to enable me to locate the new wire?

Question by MartinK185   |  last reply


how to build bluetooth device?

I wanted to turn on/off the LED light from my bluetooth enabled cell phone and building cost can be around $10, not above $10 :) . Is it possible?

Question by chandan45600   |  last reply


How do I convert a usb enabled device and attach a bluetooth r/t (and rechargeable battery supply unit)?

I have no background in circuits but am trying to combine a fairly complex sensor (manufactured on its own board, powered by usb) with more electronic components that I am buying.  I want to add a bluetooth r/t and LiPo battery system as well as a circuit board that has a tungsten-halogen lamp with photoresistor setup.  My question is, is there a simple way of combining different circuit systems?  Thank you so much!!

Question by OptoTron   |  last reply


pdf files will not download

PDF files will not download, I am using firefox  3.6.10 on a Windows 7 O.S. PDF files from other sites are  downloading OK . I paid for a pro membership  specifically to enable this feature.

Topic by nick50   |  last reply


Is there a javascript command or some code or something that would enable me to see "invisible" code in the page source?

I was looking at the source page of some of my instructables and was not able to see the

Question by Eric_Hill   |  last reply


Why not have a search facility in "Favo(u)rites?

If,as I do,you have many "Favs," why not a "search"  facility to enable us all to locate the specific that we may require from a particular !Instructable?"            

Question by bumsugger   |  last reply


I want to turn on/off an LED light from my bluetooth enabled mobile (iphone) phone

 I've heard about Arduino however the circuit board is very large, is there something smaller I could use instead or another method. i've seen this video about a bluetooth mini car would it be possible the make the LED device as small as that? http://www.youtube.com/watch?v=9Wd4nt_d2Ig If someone could point me the right direction i would greatly appreciate it! Thanks

Question by senmal   |  last reply