I'm not really using one regularly right now, but here are the few things I've done with my Pis:
- Hosted a blog using Rails and a Cron that updated the A record on my Route53 domain to point to my local IP address. I'm not sure anyone ever read it, but I had it up for about a year.
- Attempted to reverse engineer a treadmill controller with the UART pins. I successfully figured out the baud rate and captured bytes, but never figured out how to control the treadmill motor board. I have a feeling the motor board had a problem.
- Connected a piezo element to GPIO and made a controllable alarm device.
- Hosted a blog using Rails and a Cron that updated the A record on my Route53 domain to point to my local IP address. I'm not sure anyone ever read it, but I had it up for about a year.
- Attempted to reverse engineer a treadmill controller with the UART pins. I successfully figured out the baud rate and captured bytes, but never figured out how to control the treadmill motor board. I have a feeling the motor board had a problem.
- Connected a piezo element to GPIO and made a controllable alarm device.
Nothing that cool, really.