Software and a cable needed for a laptop
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this is the one your looking for
http://winaldl.joby.se/
http://winaldl.joby.se/
Ok, I have a DB9/RS232 cable. So for a '87 Grand National, I need to know what goes where (resistor and transistor) on the DB9 end of the cable? And the 12v. I have a car cigarette lighter connector.
Here is what ALDL has http://winaldl.joby.se/aldlcable.htm
Ok, it's been a while since high school that I've seen an electronic schematic.
In the first diagram, would I leave the original wire in port 2 on the DB9 end and splice into it and add the 10k resistor then add a wire to the other end of the 10k resistor and go to a plug end connector for the lighter? Does it matter which end of the resistor goes to port 2?
For the transistor, which wire is the Emitter and Collector? I remember one wire is shorter than the other.
thx in advance.
Here is what ALDL has http://winaldl.joby.se/aldlcable.htm
Ok, it's been a while since high school that I've seen an electronic schematic.
In the first diagram, would I leave the original wire in port 2 on the DB9 end and splice into it and add the 10k resistor then add a wire to the other end of the 10k resistor and go to a plug end connector for the lighter? Does it matter which end of the resistor goes to port 2?
For the transistor, which wire is the Emitter and Collector? I remember one wire is shorter than the other.
thx in advance.
atomicbread
New Member
- Joined
- Jun 3, 2004
- Messages
- 39
Mark,
I did my cable just as it is shown in the second diagram on the webpage. Leave out resistor R3 and R4. Depending on your laptop, you may be able to get away with leaving off the 12 Volt power. I would make the cable without the 12 Volt power and try it out. I bet it will work.
It does not matter which end of the resistor you use. As for the transistor pinouts, the package that the transistor came in should have a diagram showing which end is which.
If you don't have the package, this webpage may help.
transistor
I would just solder one resistor into pins 2 and 4. Solder the collector of the transistor into pin 2. Base of transistor in series with a resistor and then to one length of speaker wire. Emitter of transistor to pin 5 with a length of speaker wire in pin 5 as well. Be sure that none of the leads are touching and , if possible, check the resistor resistance after you solder the resistors to be sure you didn't burn one out. Also check for continuity along the wires to be sure everything is good. Trust me, this will help you in the lond run. I messed up the soldering my first time and couldn't figure out what was wrong.
The way I did it was to buy an empty RS232 plug end. I then used 2 pieces of speaker wire to make the cable. It may be a lot easier with just 2 wires instead of the 9 in the cable you have. I soldered 2 unrolled paperclips into the wire ends that I use to plug into the ALDL connector. It's easier that trying to mess with the bare wire. I bought a RS232 plastic cable end protector to cover all the resistors and transistor.
Let me know if you need anymore help.
Jason
jrstarner@comcast.net
I did my cable just as it is shown in the second diagram on the webpage. Leave out resistor R3 and R4. Depending on your laptop, you may be able to get away with leaving off the 12 Volt power. I would make the cable without the 12 Volt power and try it out. I bet it will work.
It does not matter which end of the resistor you use. As for the transistor pinouts, the package that the transistor came in should have a diagram showing which end is which.
If you don't have the package, this webpage may help.
transistor
I would just solder one resistor into pins 2 and 4. Solder the collector of the transistor into pin 2. Base of transistor in series with a resistor and then to one length of speaker wire. Emitter of transistor to pin 5 with a length of speaker wire in pin 5 as well. Be sure that none of the leads are touching and , if possible, check the resistor resistance after you solder the resistors to be sure you didn't burn one out. Also check for continuity along the wires to be sure everything is good. Trust me, this will help you in the lond run. I messed up the soldering my first time and couldn't figure out what was wrong.
The way I did it was to buy an empty RS232 plug end. I then used 2 pieces of speaker wire to make the cable. It may be a lot easier with just 2 wires instead of the 9 in the cable you have. I soldered 2 unrolled paperclips into the wire ends that I use to plug into the ALDL connector. It's easier that trying to mess with the bare wire. I bought a RS232 plastic cable end protector to cover all the resistors and transistor.
Let me know if you need anymore help.
Jason
jrstarner@comcast.net
