I bought this RS232-TTL converter
But I can't get it to work.
RS232 signal seems to be OK. I can see data on oscilloscope.
RS232 device GND -> Converter GND (DB9 pin 5)
RS232 device TX -> Converter RX (DB9 pin 2)
Converter VCC -> Arduino 5V
Converter GND -> Arduino GND
Converter TX -> Arduino RX (pin 0)
Light on converter lights up, when it is powered.
Also when I hoop up my oscilloscope to converter, I can't see no voltage only some noise.
Is something wrong with my connections?