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;     }   } }

Asked by WWC 5 years ago


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?

Asked by 8 years ago


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

Asked by ReCreate 8 years ago



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. 

Asked by ikechukwu.dimobi 3 years ago




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?

Asked by Jareadx 6 years ago


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.

Asked by JalanshM 1 year ago


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

Asked by tonygirl 8 years ago


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

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Asked by 9 years ago



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 

Asked by LED Maestro 5 years ago


Enable all contact? Answered

When I go to Assemble-Enable All Contact, thee range of motion is from 152deg. to 23 deg. I thought that maybe the hinge didn't have proper clearance so I increased the tolerance between the pin and the slot the pin should slide in but this doesn't change the operation. Do you have any suggestion for how I can track down this problem?Thanks

Asked by laugus 1 year ago


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.

Asked by The Skinnerz 5 years ago


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 ^.^>

Asked by starfox195 3 years ago


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?

Asked by baudeagle 5 years ago


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.

Asked by bigb62533 8 years ago


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

Posted by ve3joc 1 year ago


.what's the problem?

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

Asked by mbasa.ntshili 3 years ago


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)

Posted by JaredsProjects 7 years ago


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?

Asked by BIGHAIRYDUDE 7 years ago


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?

Posted by FrankA2 3 years ago


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. 

Asked by yonch 4 years ago




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.

Asked by Zem 8 years ago



Why is login to Instructtables blocked in Firefox?

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

Asked by phillipnolan 7 years ago


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!

Posted by rockhardmj 8 years ago


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.

Posted by tim_n 8 years ago


cannot take picture? Answered

Everything was going super smoothly till I hit a snag at the selfie:mmal: mmal_vc_component_enable: failed to enable component: ENOSPCmmal: camera component couldn't be enabledmmal: main: Failed to create camera componentmmal: Failed to run camera app. Please check for firmware updatesAny help her would be appreciated. I just got the pi this morning as a Christmas present and all the components are brand new.

Asked by tlow1 1 year ago



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

Asked by zigzagchris 6 years ago


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!

Asked by dehumanise 4 years ago


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.

Asked by ry25920 8 years ago


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.

Asked by ecsaul23 6 years ago



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!!!

Asked by Tree Hugger 6 years ago


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

Asked by narinder105 4 years ago


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? 

Posted by Bruce747 4 months ago




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?

Asked by MartinK185 1 year ago


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?

Asked by chandan45600 7 years ago




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 

Asked by Genius 470 2 years ago


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.

Posted by nick50 7 years ago


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!!

Asked by OptoTron 2 years ago