This is an infrared gate with two sensors planned to use in the wall in the way behind a door. [more]
The infra red radiation is a region with bigger length of wave from the visible spectrum. [more]
This circuit is used to relay signals from an Infra Red remote control in one room to an IR controlled appliance in another room. [more]
This electronic lock can be used with any type of iButtons you may already have, since the only thing needed is the internal serial number, that's different for every iButton. [more]
The power line fluctuations and cut-offs cause damages to electrical appliances connected to the line. [more]
This is an efficient flyback driver for modern cylindrical rectified television flybacks. [more]