The Raspberry Pi
Hobbyist

I have a driveway that is over 300 feet long and it is nice to have some advance notice that someone is driving or walking in.  Previously,...

When controlling a device that can present a danger to people or property, it is important to include adequate safeguards, in both software...

I find solid state relays (SSR) very convenient, especially for controlling AC power lines.  They typically include opto-isolation and zero ...

The SD card of the Raspberry Pi is required for booting.  While you may not be able to boot from an external hard drive, moving the root p...

My last project had me digging through old robotics parts to find an H-Bridge Motor Controller .  I found one that had several TTL chips on ...

For the past few months, I have burned up a lot of hobby time trying to build an interface to control the Orbit 58874 sprinkler control val...

I haven't been able to post in quite a while - far too many things in real life distracting me.  But now that I have gotten back to hobb...