Sending more than 8 byte through UART on Raspberry Pi using Android Things

Question

I have a Raspberry Pi running on Android Things. I'm trying to send data that is over 8 bytes over a UART connection using the Pin 4 with a TTL through USB2.0. But that didn't work, so, should I be using some other pin like Pin 6? Or what should I be doing if I want to send a 9-byte data or 234212441325454543595674859764 to USB to TTL with pin 4?

Answer 1

So, you can send 234212441325454543595674859764 in ASCII, which is the default for UART.

Check this out for examples or tutorials:
https://developer.android.com/things/sdk/pio/uart
https://github.com/androidthings/sample-uartloopback

Since its over 8 bytes, there might be a chance that you don't receive the entire string at once, but even if you get it in parts, just concatenate them.