First page Back Continue Last page Overview Image
12 devices meant 12 power bricks
- 12 devices meant 12 power bricks
- Instead of used a big 12V power supply and spliced its output
- I then cut the cables and had them go through a relay
- Simple 16 relay board with pins going to an arduino nanov3
- Trivial program that takes 2 character serial input and toggles relays
- 11 => turn ‘1’ on, 10 => turn it off
- Voilà: Server PDU for $30 instead of $300 and a single power supply instead of 15 power supplies (12 devices, 2 USB hubs, one switch)
Arduino to the rescue: cheap PDU