Also, I would strongly recommend getting a bench power supply that has an adjustable current limit. I have an old and trusted Thurlby Thandar supply which gets

Also, I would strongly recommend getting a bench power supply that has an adjustable current limit. I have an old and trusted Thurlby Thandar supply which gets used for all development, including things that will later be powered by a host USB port. I have it set to a little above what the project needs, typically a few 10s of milliamps. My (regular) mistakes just result in the voltage dropping away - no fireworks.