Need +9V power supply for breadboard (3x Stepper motors). Tried Arduino wall wart
423
Choosing power supply, how to get the voltage and current ratings?
28361
How can I drive 12v LEDs from my Arduino Nano?
40711
Getting higher power output by using more resistors
92255
How can I use a 12 V input on a digital Arduino pin?
41838
Breadboard Confusion
2268
Question regarding use of low voltage high current outputs
80781
Can a 20V 4.51A power supply be used with a computer that requires a 19V 3.42A power supply?
4854
Using multiple power supplies in one PC
127846
Integrated voltage regulator chip versus discrete circuit utilizing op-amps and power BJTs for DIY bench power supply
34827
How can I plug my LPT printer into a motherboard with no parallel port?
32052
how to reduce DC voltage using resistors?
31847
Making a three phase voltage source to drive a gyroscope
65365
How does USB Power Delivery work with voltages above 5V without damaging 5V peripherals?
67534
What is / how can I get a student-safe power supply for electronics projects?
76832
Powering 16 meter LED strip
28135
Can I use blue-green LEDs as MCU state indicators on 3.3 V power?
134426
How do I convert, lower, or raise voltage?