So I am new to using the pico w and I am trying to connect a scoreboard controller device (Daktronics All Sport® 5000) that outputs real time data over serial. I have an RS323 to USB converter that is connected to the Pico via a female usb break out. The break out board is connected to the USB test pads respectively. I have tried to power the Pico with external power and read the USB with the following code:
from sys import stdin
from machine import Pin
import _thread, uselect
from time import sleep
led = Pin("LED", Pin.OUT)
led.toggle()
while True:
buffer = []
select_result = uselect.select([stdin], [], [], 0)
while select_result[0]:
char = stdin.read(1)
buffer.append(char)
select_result = uselect.select([stdin], [], [], 0)
message = "".join(buffer) if buffer != [] else None
if message != None:
with open("in.txt", "w") as f:
led.toggle()
f.write(message)
I believe the reason this doesn't work is because the device I am connecting is a USB device and needs to be connected to a host and the Pico is not one. With some basic research it looks like USB host support is not out yet for Micropython. Is this true? If so are there any ways around this to read the incoming serial message?
I guess simply I want to know if I can replace the USB micro on the board with a USB-A female port to make connection with the controller easier.
