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Step 9Prepare the D-Sub Connector
On the ladyada site, there are directions about how to connect the D-Sub connector. The connections to our clippable connector are the same, but implemented slightly differently. I cut an end of the resistor leads a little on the shorter side (it doesn't make any different which side is shorter, but if you look at the colored rings and pick the same end for all the resisters, it will be more orderly looking).
For the following instructions, you can look at the pictures to see which pins are soldered. Or if you have just the right light and squint through a magnifying glass, you can see the numbers printed on the socket. Choose a male or female socket depending on whether you're connecting directly to your computer's parallel port (male D-Sub), or a cable (female D-Sub).
Next, solder the resistors to the appropriate pins. Resistors are connected to pins 2, 4, and 5. Make sure the short lead is the one connected to the connector with the longer one left free. That covers three of the five connections.
For the other two connection, I used the ends clipped off the resistors and soldered them to the other two connectors (You can check the ladyada site to confirm pins ... I've also put notes on an attached image to show which pins have resistors and which are direct wires). Wires ends are connected to pins 11 and 20.
One note about technique, just like we tinned the pin and wire when soldering to the pin header, it's easiest to melt a bit of solder on the D-Sub pins then reheat to solder in the resistor or bit of wire.
Once all five D-Sub pins have leads soldered on, you can use wire cutters to trim them all to the same length making sure to leave enough length on the resistors to attach to the wires.
For the following instructions, you can look at the pictures to see which pins are soldered. Or if you have just the right light and squint through a magnifying glass, you can see the numbers printed on the socket. Choose a male or female socket depending on whether you're connecting directly to your computer's parallel port (male D-Sub), or a cable (female D-Sub).
Next, solder the resistors to the appropriate pins. Resistors are connected to pins 2, 4, and 5. Make sure the short lead is the one connected to the connector with the longer one left free. That covers three of the five connections.
For the other two connection, I used the ends clipped off the resistors and soldered them to the other two connectors (You can check the ladyada site to confirm pins ... I've also put notes on an attached image to show which pins have resistors and which are direct wires). Wires ends are connected to pins 11 and 20.
One note about technique, just like we tinned the pin and wire when soldering to the pin header, it's easiest to melt a bit of solder on the D-Sub pins then reheat to solder in the resistor or bit of wire.
Once all five D-Sub pins have leads soldered on, you can use wire cutters to trim them all to the same length making sure to leave enough length on the resistors to attach to the wires.
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