Raspberry Pi GPIO using a relay switch
133410
Controlling a Solenoid With Raspbery Pi GPIO Output Using a Transistor
121688
Why do you need 2 resistors when hooking up a transistor as a switch
92255
How can I use a 12 V input on a digital Arduino pin?
48848
Relay: higher voltage allowed at lower current?
66115
Would this be the correct way to add a timer switch to an existing fan with thermostat?
10230
Smart switch wiring with no neutral
37578
How to measure voltage of a floating GPIO (Raspberry Pi)
53976
How to connect an LED indicator to a circuit?
108482
Switch power supply/battery
133416
Using Mosfet with seperate Logic Converter and Arduino
71535
Does driving an microcontroller's GPIO when it is powered off weaken the chip?
102460
Raspberry Pi + IRFZ44N to control a 5050 RGB LED strip: current seems to be limited
154111
Max. switching current in relay
95080
synchronous reset D flip-flop with three inputs
92681
Controlling Two Circuits with One Switch
28609
How to switch 7 wires with a single on/off slide switch
105529
Detecting state of LED to control another circuit