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Brother printer password reset using telnet

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  Login into printer using telnet. telnet 10.1.0.110 Enter default telnet password as 'access' . Press enter for the username or you can use admin or what ever username.  Type this command to reset the password SET PASSWORD abc123 New password will be abc123 .    Clear the web password of  MFC-8510DN  Note : when you change the password this will change the both web and telnet password. If you just need to reset the password enter SET PASSWORD. and hit enter key without password. That will reset the web login password and also it will automatically change the telnetpassword back to 'access'
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Add all 10 fingers for Apple TouchID & Passcode

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I found this little trick when I walk through the iOS settings page. 1. Just go to the Touch ID & Passcode setting page. 2. Then Click the Add a Fingerprint (You have 5 Fingerprints to add ) and try to add fingers. Please put same finger two or three times at once. Some time will say  move your finger slightly between scans. 3.Then comes new window with title Adjust Your Grip - Keep going to capture the edges of your print and Press Continue and try to add same fingers which you enter in step two. (Hint : after putting fingers if you want to check what finger in the finger print list just put your thumb on the finger print scanner and it will highlight the correct finger print index.)
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Google map api - use multiple keywords in place searches

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In order to google Place Search   and Place Library documentation there no option to use multiple keywords for searching. Therefore I have done this; I've created two PlaceService objects because I need to look at 'Pizza Hut' and 'KFC' both in single click. var service = new google.maps.places.PlacesService(map);             service.nearbySearch({                 location: pyrmont,                 radius: 50000,                 keyword: ['KFC']             }, callback); var service2 = new google.maps.places.PlacesService(map);             service2.nearbySearch({                 location: pyrmont,                 radius: 50000,                 keyword: ['Pizzahut']             }, callback); and It's working well. KFC Layer KFC + Pizza Hut Layer KFC + Pizza Hut + Subway Layer Full source code: <!DOCTYPE html> <html> <head>     <title>         Map     </title>     <script async
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Circuit schematic for arduino controlled relay with optocoupler

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Schematic for Arduino controlled relay using optocoupler.   The input pins of the module work inversely. As we can see the relay will be activated when the input pin will be LOW because in that way the current will be able to flow from the VCC to the input pin which is low or ground, and the LED will light up and active the relay. When the input pin will be HIGH there will be no current flow, so the LED will not light up and the relay will not be activated. Optocoupler   PC817    Optocouplers and opto-isolators can be used on their own, or to switch a range of other larger electronic devices such as transistors and triacs providing the required electrical isolation between a lower voltage control signal and the higher voltage or current output signal. Common applications for optocouplers include microprocessor input/output switching, DC and AC power control, PC communications, signal isolation and power supply regulati on which suffer from current ground
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