I have a question, I copied the program into Raspberry Pi pico when I was working on the project of thermal printer parking system, after that I tried to copy other programs but they failed, is it because the pico board can only copy one program?

Video demo

Code

import mfrc522
import time
import _thread
from os import uname
from machine import Pin, UART
#from pyb import UART
#import machine

suos = Pin(32,Pin.OUT)
uart2 = UART(2, baudrate=115200, rx=16,tx=17,timeout=10)

ESP32_HSPI_CLOCK = 14
ESP32_HSPI_SLAVE_SELECT = 15
ESP32_HSPI_MISO = 12
ESP32 ...

Required materials

ESP32
KOB electronic lock
Relay
STONE STWI070WT-01 touch panel display
MFRC522 module

Realized function

1. card registration.
2. username and password registration.
3. card swipe to unlock the electronic lock.
4. User name and password to unlock the electronic lock ...