[Arm-netbook] Hacking the Mele A1000 - ultra beginner guide

[Vladimir Pantelic]

julien at forgeat.name wrote:
> Received the USB TTL Serial/UART module :-)
>
> As Alejandro stated, the 2.54mm cable connectors do not fit, we can at
> most fir two out of 4, maybe 3 but that would be risking breaking
> something ^^
>
> But then, I have been thinking:
>    (1) the 3.3V Vcc is apparently not always needed (is it only if the
> cables are very long?)

it would be needed if you want to power something with it, so it's
not needed here
>    (2) 2 cables fit in the connector
>    (3) We should be able to get ground from somewhere else on the board
>
> So is it dangerous the connect Rx and Tx on the UART port, Ground on
> the USB port and not to connect Vcc (or why not, get Vcc from the USB
> port)?

dont connect VCC, the 3.3.V is coming *from* the usb2serial via the
5V PC USB power, so don't attach it anywhere, just ignore it.

connect RX, TX and GND, that's all.