Before anyone downvotes the question for my recklessness:
Disclaimer: I acknowledge that it is not advisable to make the connections mentioned in the question. This is just a hobby experiment where I can afford to dispose or damage parts in the name of learning.
I have the following:
- Parallel Port in PC
- 9V battery
- 6VDC 100-ohm relay
I can control Parallel Port signals through my software code.
I tried connecting the parallel port to LED and it worked
I tried connecting the 9V battery to relay and it worked.
When I tried connecting parallel port to relay, it didnt work - leads me to believe voltage (or current) was not enough.
(yes yes.. I know.. some of you are itching to punch me in the face)
With just the parts I mentioned above, without using Darlington Transistor or other such devices, is there any way in which I can connect them all, so that I can control the relay from the PC - at least for a short period of time?