UartSB v2.2 as USB TTL?

End-Of-Life Products & Services Tech support before 2012
#1

I am just wondering about the possibility of using my seeedstudio UartSB V2.2 to program a peggy 2.0 (evilmadscientist.com/article.php/peggy2) display via the USB TTL headers. I’ve been digging through the specs for both the UartSB I own and the FDTI USB TTL cables. Both run 3.3v, but the UartSB has a pin marked DTR, whereas the cable has CTS and RTS pins. Therefore the UartSB has 5 pins, and the USB ttl is expecting 6 pins in

I was hopeful I can make the USB-TTL solution I have work for programming the peggy 2.0.

Anyone have any advice about this?

CT.

#2

Hello,

Yes, you can use UartSB 2.2 as a TTL Serial Programmer.
You can find the CTS and RTS on the 2x3 Header(near 5pin header free drills).

Have fun!
Thanks
Albert

#3

Hi Albert,

Thanks for the reply. on that 6 pin group, I can find CTS ok, but I’m not sure which one is RTS?
There is: VCC, DSR, OCD, RI and GND.

I’ve narrowed it down to between DSR OCD or RI, but i’m not sure which is RTS?

Cheers,

CT.

#4

I am sorry the RTS is not on the 2x3 Header.
You can find it as the picture shows in the yellow area and green mark.
Thanks
Albert
RTS.jpg

#5

Thanks very much,
Soldered up the headers and a cable to adapt it, and it’s working great!

CT