So I hope this is the right place for this.
I have a laptop that does not support Wake-On-Lan. I want that functionality. The laptop wakes up with the lid opening. A reed switch controls this. There is a magnet at the bottom of the screen that activates the switch.
So I fashioned a simple electromagnet (wire around nail) and I am driving it using a DC power adapter connected to a smart switch I can voice control. Joyfully, it works.
My question is what sort of resistor do I need in this circuit? and is there some household object I can use to be my resistor. An old cell phone a computer fan etc. I did not think I needed a resistor because the circuit only has to be on for 2 second at a time, maybe once a day. But damn thing got stuck and took out the adapter.
Thank you for your time
I have a laptop that does not support Wake-On-Lan. I want that functionality. The laptop wakes up with the lid opening. A reed switch controls this. There is a magnet at the bottom of the screen that activates the switch.
So I fashioned a simple electromagnet (wire around nail) and I am driving it using a DC power adapter connected to a smart switch I can voice control. Joyfully, it works.
My question is what sort of resistor do I need in this circuit? and is there some household object I can use to be my resistor. An old cell phone a computer fan etc. I did not think I needed a resistor because the circuit only has to be on for 2 second at a time, maybe once a day. But damn thing got stuck and took out the adapter.
Thank you for your time