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Thanks, but unfortunately i wont get these circuits in my country .
I'm gonna take a stab and say austria?
[...] when i checked the voltage levels at the Tx pin ... it hardly shows 0.3 volt when its is transmitting....
How did you check that?What do you measure on TX and RX (relative to ground/0V) when NOT transmitting?
Hi, my laptop does not have any Serial/Parallel ports only USB. i want to create my project (e.g. a Computer controlled RC car) to start with i need to be able to control external relays etc from my laptop.I have a USB to Serial converter now to control external relays i need to convert these serial signal to parallel.Please suggest how to proceed.-cheerssid
Quote from: sidz on December 26, 2009, 12:57:05 PMHi, my laptop does not have any Serial/Parallel ports only USB. i want to create my project (e.g. a Computer controlled RC car) to start with i need to be able to control external relays etc from my laptop.I have a USB to Serial converter now to control external relays i need to convert these serial signal to parallel.Please suggest how to proceed.-cheerssidI would suggest you using this board :-It has 6 relays-bluetooth uart adapter-power supplyYou then can use your pc bluetooth to connect to this board and control the relays (no cabling needed)