It was only a matter of time before fake FTDI RS232-USB adapter chips began to appear.
http://zeptobars.ru/en/read/FTDI-FT232RL-real-vs-fake-supereal
This fascinating page shows how some anonymous Chinese company has created a fake FT232RL chip using a mask-programmable microcontroller, and printed it with the “FTDI” name and logo.
Like Prolific (the real Prolific company, that is) FTDI have updated their drivers to detect these fakes… but that also means that anyone who has bought a fake chip will have a non-working adapter.
The message is always the same: fakes are hard to spot, so buy only from reliable distributors.
FYI, the real FTDI company is a family-owned firm right here in Scotland’s ‘Silicon Glen’.
73 from Ian GM3SEK
This keyer, based on Arduino design, employs the famous K3NG code. It can be used with any Windows/Linux/Mac logging or contesting software with Winkeyer USB (K1EL) support. The credit & big kudos goes to Anthony Good (Goody), K3NG, who did the tremendous work. It is a very small unit (outer dimensions 45 x 45 x 18.6 mm, appx. 1.8 x 1.8 x 0.73 in) which does not have any fancy options (a zillion of buttons, psychedelic flashing LED lights or cockatoo colored displays). It is intended for regular CW work and contesting with computer support, most of functions should be adjusted and operated via the computer. For standalone work an acoustic menu in command mode is used. Otherwise, only speed control knob and a mini LED indicating the command mode is on the front panel, nothing more.