Many of you probably remember the FTDI nasty drivers they released just to mess up with the FTDI clones.
This caused lot of trouble to people who use FTDI devices, we have been also affected.
We try to buy FT232RL from local distributor and they had no stock, then we look around and found the chips from other supplier, but unfortunately we got clone FTDI chips.
We made production with these chips and sent boards to customers, then at one point of time we start to get complains (only from Windows users) that boards stop working.
All these windows users were affected by the evil drivers released by FTDI which make VID/PID as zero if the chip is recognized to be not FTDI original.
We try to help our customers who have been affected on our forum and got nasty message from FTDI lawers to remove all the help instructions from our forum and pull back all boards which use these clone FTDI chips from customers and distributors. WTF?
No wonder from this moment we took decision to avoid dealing with this cheeky and nasty company as much as possible. Re-designing all our boards which were unfortunate to use FTDI chips.
CH340T is nice alternative to FTDI chips and have same features and even more, but cost exactly 1/10th of FTDI chip price.
BB-CH340T is nice small board which takes power from USB and can provide 3.3V and 5V to target together with Serial Tx and Rx (transmit and receive) signals and GND.
Note that by default neither 3.3V neither 5V is selected.