Minicom All In One

minicom bugs / minicom errors

Minicom 2.8

# 0000000000001 ❌
$ minicom -b 115200 -o -D /dev/tty.usbmodem0000000000001

# tty ❌
$ minicom -b 115200 -o -D /dev/tty.usbmodem14601

# cu ✅
$ minicom -b 115200 -o -D /dev/cu.usbmodem14601

MicroPython REPL ✅

MicroPython v1.19.1-994-ga4672149b on 2023-03-29; Raspberry Pi Pico with RP2040

>>> pin25 = machine.Pin(25)
>>> print("pin25 =", type(pin25))
>>> pin25 = <class 'Pin'>

>>> import time
>>> from time import sleep
>>>
>>> GPIO_PIN = 25
>>> led = machine.Pin(GPIO_PIN, machine.Pin.OUT)
>>>
>>> led.value(1)
>>> time.sleep(1)
>>> led.value(0)
>>>
>>> led.high()
>>> time.sleep(1)
>>> led.low()
>>>

https://micropython.org/help/

MPY: soft reboot
MicroPython v1.19.1-994-ga4672149b on 2023-03-29; Raspberry Pi Pico with RP2040
Type "help()" for more information.
>>> help()
Welcome to MicroPython!

For online help please visit https://micropython.org/help/.

For access to the hardware use the 'machine' module.  RP2 specific commands
are in the 'rp2' module.

Quick overview of some objects:
  machine.Pin(pin) -- get a pin, eg machine.Pin(0)
  machine.Pin(pin, m, [p]) -- get a pin and configure it for IO mode m, pull mode p
    methods: init(..), value([v]), high(), low(), irq(handler)
  machine.ADC(pin) -- make an analog object from a pin
    methods: read_u16()
  machine.PWM(pin) -- make a PWM object from a pin
    methods: deinit(), freq([f]), duty_u16([d]), duty_ns([d])
  machine.I2C(id) -- create an I2C object (id=0,1)
    methods: readfrom(addr, buf, stop=True), writeto(addr, buf, stop=True)
             readfrom_mem(addr, memaddr, arg), writeto_mem(addr, memaddr, arg)
  machine.SPI(id, baudrate=1000000) -- create an SPI object (id=0,1)
    methods: read(nbytes, write=0x00), write(buf), write_readinto(wr_buf, rd_buf)
  machine.Timer(freq, callback) -- create a software timer object
    eg: machine.Timer(freq=1, callback=lambda t:print(t))

Pins are numbered 0-29, and 26-29 have ADC capabilities
Pin IO modes are: Pin.IN, Pin.OUT, Pin.ALT
Pin pull modes are: Pin.PULL_UP, Pin.PULL_DOWN

Useful control commands:
  CTRL-C -- interrupt a running program
  CTRL-D -- on a blank line, do a soft reset of the board
  CTRL-E -- on a blank line, enter paste mode

For further help on a specific object, type help(obj)
For a list of available modules, type help('modules')
>>>
Meta-Z for help | 115200 8N1 | NOR | Minicom 2.8 | VT102 | Offline | cu.usbmodem14601

machine

Pin

# machine.Pin(pin)
# -- get a pin, eg machine.Pin(0)

# machine.Pin(pin, m, [p])
# -- get a pin and configure it for IO mode m, pull mode p
    methods: init(..), value([v]), high(), low(), irq(handler)

# machine.Pin(pin, m, [p])
led = machine.Pin(25, machine.Pin.OUT)

# value([v])
led.value(1)
led.value(0)

# high(), low()
led.high()
led.low()

# init(..) ???
led.init()

# irq(handler) ???
def handler():
  print("function")

led.irq(handler)

ADC

PWM

I2C

minicom 无法退出 bug ❌

按 Ctrl + A 可以切换到 > 模式；但是再依次按 Z 键，X 键 也无法退出 ❓ 不好使 ❌
按 Ctrl + A 连续按两次也不好使 ❌

按 Ctrl + B 可以切换到 >>> MicroPython 的 REPL 模式；
>>> help() 可以正常使用 ✅

macOS 配置 Python 环境变量

Python 3

$ which python
# python not found

$ python --version
# zsh: command not found: python

$ which python3
# /usr/bin/python3
$ python3 --version
# Python 3.9.6

Raspberry Pi 3 B

$ ssh [email protected]
[email protected]'s password: 
Linux raspberrypi 4.19.118-v7+ #1311 SMP Mon Apr 27 14:21:24 BST 2020 armv7l

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Wed Mar 29 00:18:23 2023 from 192.168.18.195

SSH is enabled and the default password for the 'pi' user has not been changed.
This is a security risk - please login as the 'pi' user and type 'passwd' to set a new password.

$ python --version
Python 2.7.16
$ which python
/usr/bin/python

$  python3 --version
Python 3.7.3
$ which python3
/usr/bin/python3

$ vim test.py
$ python ./test.py 10

$ python3 ./test.py 10
# #!/usr/bin/env python3 ✅
# #!/usr/bin/python3
# # coding: utf8 ✅

gpio.py

#!/usr/bin/env python3

# coding: utf8

import RPi.GPIO as GPIO
import time

import sys

arg1 = sys.argv[1]

print("arg1 =", arg1);

# 指定 BCM 模式下的GPIO 针脚编号
PIN = 12
# BCM 模式
GPIO.setmode(GPIO.BCM)

# 指定 GPIO 针脚为一个电流输出针脚
GPIO.setup(PIN, GPIO.OUT)

# 输出低电平
GPIO.output(PIN, GPIO.LOW)

# index
i = 0
# max
# n = 7

# 类型转换，str => int
n = int(arg1)

print("n =", n)

print('开始闪烁⏳')

while (i < n):
    print("i =", i)
    # 高电平，LED 点亮
    GPIO.output(PIN, GPIO.HIGH)
    # 休眠 1 秒，防止 LED 长时间点亮烧坏了
    time.sleep(1.0)
    # 低电平，LED 熄灭
    GPIO.output(PIN, GPIO.LOW)
    # 休眠 1 秒
    time.sleep(1.0)
    i = i + 1

# 输出低电平，LED 关闭
# GPIO.output(PIN, GPIO.LOW)

# 清除，释放内存
GPIO.cleanup()

print('结束闪烁 

标签：sudo,Pin,--,Minicom,apt,machine,GPIO	

From： https://www.cnblogs.com/xgqfrms/p/17275859.html