Quote:
Originally Posted by Markismus
@very_rude_Turnip Welcome to the discussion!
Two questions about those voltages:
1) searching for 1.8V FTDI on AliExpress generated no results.
2) If the serial port on the device side is already powered, you don't have to connect the Vc. Does it still matter whether your TTL2USB is set to 1.8V or 3.3V or 5V? |
Yes, you are not going to find a 1.8V adapter -- not enough market demand yet. You would need to make a level shifter with a breadboard to step down from 3.3V to 1.8V. The only devices I have run into that are 1.8V on the serial port so far are a couple of phones, but even some routers (ipq806x) are 1.8V now.
A device like this would never be 5V. It's probably 3.3V. Small possibility of 1.8V.
I don't recommend connecting Vcc at all -- just ground tx and rx. Your serial port is already powered by the USB side.
I just cracked open my new Aura v2. There's the serial port. 4GB MicroSD card in there too -- no soldiered in. Interesting.
I will see if I can connect.