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Member Since: February 6, 2011

Country: United States

  • Why ask why? Drink Bud Dry.

  • I need help with my code ASAP! I'm running out of daylight! Here it is:

    bool startJetEngine(){
        fuel = 1
        glow_plug =1;
        starter = 1;
        if ( engine_running == 1 ){
            return true;
            return false;
    void main(){
        while( startJetEngine() ){
        while( fuel != empty ){
            // do stuff
  • Looks like that is driven by shield size more than anything. You can still break that out if you want. Otherwise look at the capacitive touch keypad: https://www.sparkfun.com/products/12017

  • Just keep typical transparent tape near by. Press the tape to the scanner and remove. It does a fantastic job cleaning finger print sensors like this. If you are extra paranoid then dispose of the tape in a destructive manner because it does a great job lifting the print from the surface.

    If you are worried about security then you should be worried that the response from the sensor for a 1:1 and 1:N verification is not encrypted and the verification takes place at the sensor. So, a would be hacker could just remove the sensor and send some basic serial commands to spoof the system.

  • Hooray for mounting holes!

  • I really wish you could take this apart.

  • Take a look at the hardware page on the Arduino.cc website, http://arduino.cc/en/Main/ArduinoBoardProMini

    SPI communications are done on pins 11 (MOSI), 12 (MISO), 13 (SCK).

    Also, look at the SPI library page, http://arduino.cc/en/Reference/SPI

  • You will need to use the software serial lib. Once you have that included you should be able to use any two of the digital I/O pins to communicate to each display independently. Your other option would be use SPI communication. This has a chip select ability to control multiple displays. In this case you would use the MOSI and SCK pins of the Arduino then you will need to use one digital out to each display's CSN pin.

  • (Nervous) But then... Then they could track you...

  • Perhaps you should just keep dangerous objects away from your children and if you are so concerned about it don't buy this product.

No public wish lists :(