Editing Arduino s Gravenhage to Ethernet Using an NSLU2 - Technical Details
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Here is another option for getting your Arduino (or early PIC) otherwise to your separateness (ethernet) - use an old NSLU2! The NSLU2 and Arduino both talk TTL, but the NSLU2 is 3.3v and Arduino is 5v. Simple fix - add a resistor! Only 3 wires are compulsory - pins 2, 3 and 4 on the NSLU2. You do non want to connect the index pin. Per the defer below, attend for the white stripe - that is the power pin. NSLU2 - pin-out of the J2 serial port Pin 1 - 3.3v, pin 1 has a white stripe next to it Pin 2 - RXD, receive from Arduino to NSLU2 (must have resistor) Pin 3 - TXD, transmit from NSLU2 to Arduino Pin 4 - GND, ground connection This article is written in reference to the "Freeduino" - a BBB (bare bones board) type.<br><br>Make sure everything is powered off and unplugged. Then, connect the TTL pins labeled "RX", "TX" and "GND" on the BBB to the proper pins on the NSLU2. The 4 serial port TTL pins on the NSLU2 are visible just below the battery to the right. You must place a 10k resistor between the Arduino and the NSLU2 on pin 2 of the NSLU2 so the 5v coming from the Arduino are reduced to safe levels. Now power up the Arduino and NSLU2 that is flased with Debian (SlugOS should work also).<br><br>Install minicom (apt-get) and start up minicom and set the serial port to ttyS0, 9600, 8N1. If the connections are correct, the TTL pins/port on the Arduino and NSLU2 are functional you should now see the output from the Arduino. If you do not see anything, be sure you have pre-programmed your Arduino with a program that outputs text at the proper baud rate. Also baud powering remove both units, Hpower back up and try again. If you have made other hardware mods so much as overclocking on the NSLU2, it is possible the serial port seriawill not work.<br><br>You must place a 10k resistor between the Arduino and the NSLU2 on pin 2 of the NSLU2 so the 5v coming from the Arduino are reduced to safe levels. Now power up the Arduino and NSLU2 that is flased with Debian (SlugOS should work also). Install minicom (apt-get) and start up minicom and set the serial port to ttyS0, 9600, 8N1. If the connections are correct, the TTL pins/port on the Arduino and NSLU2 are functional you should now see the output from the Arduino.<br><br>If you do not see anything, be sure you have pre-programmed your Arduino with a program that outputs text at the proper baud rate. Also baud powering hit interrupted units, power back up and try again. If you have made other hardware mods so much as overclocking on the NSLU2, it is possible the successive port will not work.<br><br>If you have any concerns regarding where and ways to make use of [https://www.youtube.com/watch?v=wYASfoRwNc0 secret knock detecting door lock], you could call us at the website.
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