openmv用串口向上位机发送数据，为什么上位机收不到？

[xolz]

UART Control

This example shows how to use the serial port on your OpenMV Cam. Attach pin

P4 to the serial input of a serial LCD screen to see "Hello World!" printed

on the serial LCD display.

import time
from pyb import UART

Always pass UART 3 for the UART number for your OpenMV Cam.

The second argument is the UART baud rate. For a more advanced UART control

example see the BLE-Shield driver.

uart = UART(3, 19200)

while True:
uart.write("Hello World!\r")
time.sleep_ms(1000)

[kidswong999]

检查一下RX,TX,GND的接线对不对。