uart.any freezing when second data has sended
main.py in rasberry pi pico
from machine import UART
from time import sleep
uart = UART(0,9600)
def read():
global uart
data = uart.read()
while True:
if uart.any():
read()
sleep(0.3)
When i open the serial port with the same settings as rasberry pi pico's serial port, its works nicely. But then, I open Arduino Uno editor then serial port screen, I'm able to send the first data but when I send the second data, it's just freezing forever.
I tried with different rasberry pi pico but the result is the same.
esp8266 uart.read() problem
Hi, I am trying to read from uart(0) on nodemcu lolin board. In the below code, I configured uart(1) for sending data and uart(0) for receiving. Both uarts are initiated successfully at 115200 baud.
I checked uart1 tx pin (i.e. d4-gpio2 on the board) to a serial module, checked it with cutecom, it works ok. It sends the text at intervals as intended. I ran the code directly from memory (i.e. main.py) and powered the board externally, no usb connected to board. Could not read from the uart0 rx d0 pin (gpio3). uart0.read(32) returns None, always.
`import time
import uselect
from machine import UART
uart0 = UART(0)
uart1 = UART(1)
print(uart0)
print(uart1)
print("starting")
uart1.write("send me something")
uart0.write("waiting for data")
while (True):
# if (uart0.any() > 3):
uart1.write("test data")
time.sleep(0.5)
# print("reading")
a = uart0.read(32)
print(a)
if a is not None:
print(a)
uart0.write('received data')
`