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| SirPoonga:
yeah, that's why I am sorta waiting on the LED boards and seeing how programmable with mame. That could work out. Yeah, you apply power to the coil on the solenoid, it creates a magnetic field, the rod moves and stays. That's how large security doors sorta work, but on their own poewer system. Large magnets and solenoids to lock the doors. hence why you'd need a computer controlled relay switch for this. |
| 2600:
For Lilwolf and SirPoonga, I thought the solenoid would overheat and if you had a fuse(you probably should) it would blow it if you kept it out. |
| SirPoonga:
Could be. But power isn't always going to be aplied. |
| 2600:
Sorry didn't add enough info, Lilwolf was talking about if the solenoid was kept out, which does require power to be applied. Should of quoted him. |
| SirPoonga:
yep yep. My current plan of attack is if possible use serial port (then if I need usb in the future I cna use a convertor), use the RTS pin since that is one of the few pins you have complete control over. Well, I have to see if I can control it form withing the qbert driver. I don't know mingw enough to know how to do that. I have to talk to the people doing hte LED boards. I know budda uses a dll or something like that to have direct access. I was reading, mingw does have a win port of CreateFile() (or something named simular like that) which is how you access the parallel port in both 98 and NT worlds. It's a pain to work with though. Might not need a dll... |
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