With the holidays quickly approaching, it is challenging to find the perfect Christmas present for friends and family. For ...

[Reza’s] methodical investigation of this remote controlled outlet let him patch in with an Arduino using a 433 MHz transmitter. This is a single-device unit, but the techniques used here should ...

700VA line interactive tower UPS system for 120V network applications Enhanced DB9 serial communications port, free Power Alert software and cabling, SNMP compatible Corrects brownouts and over ...

It doesn’t seem like we’re going to get to Christmas Day in a few days. The question is have we prepared gifts for our loved ...

After wiring up each outlet so it can be controlled independently, he set out designing a four port relay board. This was a pretty simple build – four 10 Amp relays and a few terminal blocks.