# PSU

- [PSU without background daemon](https://dev.nominal.io/instro/examples/psu/psu.md)
- [PSU with background daemon](https://dev.nominal.io/instro/examples/psu/psu_background_daemon.md)
- [Build an InstroPSU from a JSON config file](https://dev.nominal.io/instro/examples/psu/psu_config.md)
- [Drive a virtual PSU, with no hardware or server](https://dev.nominal.io/instro/examples/psu/psu_virtual.md)