WiPy 2.0 + Expansion Board 2.0 SD Card and UART1

[gdonaire]

Hi,

It is possible to use the SD Card and the UART1 serial port at the same time?
If not, Can I change the TX, RX pins for UART1?
There is any table for the alternative function of the pins (alt parameter)?

Thanks and best regards,

[drl]

Hi,

I had the same problem. I resolve it using the next code:

from machine import SD
import os

uart=UART(1,baudrate=115200,pins=('P12','P11')) ## it is important to create uart before sd
#uart.init(115200, bits=8, parity=None, stop=1,pins=('P3','P4'))
#uart.init(115200, bits=8, parity=None, stop=1,pins=('P10','P9'))
#uart.init(115200, bits=8, parity=None, stop=1,pins=('P12','P11'))

while(uart.any()==0):
pass
uart.readall()

sd = SD()
os.mount(sd, '/sd')

check the content

os.listdir('/sd')

try some standard file operations

f = open('/sd/test.txt', 'w')
f.write('Testing SD card write operations + serial to HPoseidon')
f.close()
f = open('/sd/test.txt', 'r')
f.readall()
f.close()

I hope it will be useful. Sorry for mi English.

Regards