[PC] -> [USB-TTL] -> [Rainbowduino] does not work


this week i found a rainbowduino and remember a project idea… an audio analyzer…

At the 1st step of the Project i try to communicate: [PC] -> [USB-TTL] -> [Rainbowduino] (i do not have any arduino).

Set UART speed to 115200Baud, parity none, 1 stop bit.
Send a sequence of 96bytes (all 0xFF) but nothing is changed. now i’m :frowning:

Hardware: Rainbowduino V2.0 10/31/09, Atmega168, no onboard usb
Software: Original, no changes

At first of all: Is it posible to communicate via UART directly to rainbowduino with my version?
What protocol, parity, stop bits are needed?

Thank you,

you can visit the wiki http://www.seeedstudio.com/wiki/Rainbowduino_v3.0 , learn how to used your rainbowduino .
rainbowduino 2.0 is similar to rainbowduino3.0 .

And it’s necessary to communicate UART to the rainbowduino2.0 ,because it not have USB2UART on board.