M5StickV Maixpy上手指南

驱动安装

将设备连接至PC,若无法正常识别端口, 用户可以通过手动安装 FTDI驱动 修复该问题。以win10环境为例,下载匹配操作系统的驱动文件, 并解压,通过设备管理器进行安装。(注:某些系统环境下,需要安装两次,驱动才会生效,未识别的设备名通常为M5StackUSB Serial, Windows推荐使用驱动文件在设备管理器直接进行安装(自定义更新), 可执行文件安装方式可能无法正常工作)。 点击此处,前往下载FTDI驱动

对于MacOS用户安装前请勾选 系统偏好设置 - >安全性与隐私 - >通用 - >允许以下位置下载的App - > App Store和认可的开发者选项

EasyLoader

EasyLoader是一个简洁快速的程序烧录器,其内置了一个产品相关的案例程序,通过简单步骤将其烧录至主控,即可进行一系列的功能验证.

Download Windows Version Easyloader

案例描述:
搭载Maixpy固件,测试摄像头,屏幕图形显示功能,单击HOME键可开关背部补光灯.

烧录固件

需要指定烧录文件的用户可以选用Kflash进行固件烧录.

1.点击下方对应自己操作系统的 Kflash_GUI烧录工具进行下载.

2.将设备通过Tpye-C数据线连接至电脑,双击打开烧录工具Kflash_GUI应用程序,选择对应的设备端口、开发板类型(M5StickV)、固件程序、波特率. 点击下载,开始烧录 .

Kflash

3.对于习惯使用命令行操作的用户来说还可以选择Kflash作为固件烧录工具. 点击此处查看详情

串口调试工具

1.编程M5StickV需要使用到串口调试工具,您可以使用Putty作为串口调试工具, 点击此处 访问Putty资源页面,选择对应自己操作系统Putty进行下载,并安装.

2.运行Putty后,将M5StickV通过Tpye-C数据线连接至电脑端口,在Putty中设置相应的端口号与波特率,点击"open",开始连接. (你可以通过查看设备管理器得到M5StickV所使用的端口号)

连接成功后,将自动进入,MaixPy 的交互界面. 此时设备正在运行着默认程序,您可以通过按下快捷键"Ctrl+C"中断其运行,并进入命令行.

Hello World

在命令行输入下方代码,M5StickV屏幕将显示"hello world".

import lcd

lcd.init()
lcd.draw_string(100, 100, "hello world", lcd.RED, lcd.BLACK)

编辑与运行文件

编辑文件

在交互解释器(REPL)中,我们能够便捷的输入程序并马上得到运行结果,但这仅适合用作短程序的验证,在实际项目中,庞大代码量使得我们不得不将代码编辑成一个个的文件.

在 MaixPy 中,内置了一款编开源编辑器 Micropython Editor(pye) ,这使得我们能够非常方便的修改程序文件.

使用 os.listdir() 可以查看当前目录下的文件,

使用 pye("hello.py") 可以创建文件并进入编辑模式(已存在同名文件,则仅进入编辑), 快捷键等使用说明可以在 这里查看

在编辑器中完成编辑后,按 Ctrl+S > Enter 键进行保存, 按 Ctrl+Q 退出编辑

注意: 使用这款编辑器对使用的串口工具有一定要求, 必须将 BackSpace 按键设置为 DEL 功能, 否则按 BackSpace 调用的是 Ctrl+H 一样的功能(即字符替换)

运行文件

使用 os.chdir() 切换当前目录到文件的目录,比如 os.chdir("/flash")

方法一: import

然后执行 import hello

即可看到输出 hello maixpy

使用此方法简单易用,但是需要注意的是, 目前 import 只能使用一次, 如果第二次 import, 则文件不会再执行, 如果需要多次执行,建议使用下面的方法

方法二: exec()

使用 exec() 函数来执行

with open("hello.py") as f:
    exec(f.read())

开机自动运行脚本

系统会在 /flash 或者 /sd 目录创建 boot.py 文件, 开机会自动先执行这个脚本, 编辑这个脚本的内容即可实现开机自启

MaixPy IDE

下载MaixPy IDE

MaixPy IDE能够便捷的实现脚本程序的实时编辑、上传、执行,以及实时监控摄像头图像,文件传输等功能.使用 MaixPy IDE 因为数据的压缩、传输需要耗费一部分资源,所以性能会有所降低,但对性能需求不苛刻,或处于调试阶段的开发者来说这会是一个很不错的开发工具.

MaixPy IDE

安装MaixPy IDE

Windows平台可直接双击exe文件,运行安装程序.

Linux命令行给运行权限然后,执行命令

chmod +x maixpy-ide-linux-x86_64-0.2.2.run

./maixpy-ide-linux-x86_64-0.2.2.run

使用MaixPy IDE

运行MaixPy IDE, 点击工具栏,选择开发板的型号.Tool-> Select Board-> M5StickV (工具->选择开发板)

点击左下角的连接按钮,并选择正确的连接端口,点击OK.

当连接按钮由绿色变为红色的时表示,已经连接成功,你可以在上方的编辑框进行代码编辑,点击左下角的运行按钮能够执行代码,进行验证.

视频教程

WS2812

固件内置了WS2812 RGB LED驱动库,以下为参考例程:

from modules import ws2812
from fpioa_manager import *
fm.register(board_info.CONNEXT_A)
class_ws2812 = ws2812(board_info.CONNEXT_A,130)
r=0
dir = True
while True:
    if dir:
        r += 1
    else:
        r -= 1
    if r>=255:
        r = 255
        dir = False
    elif r<0:
        r = 0
        dir = True
    for i in range(130):
        a = class_ws2812.set_led(i,(0,0,r))
    a=class_ws2812.display()

PMU

说明: 使用该API实现按钮短按重置,长按睡眠。传入True或False,True启动按钮检测,False取消检测。

from pmu import axp192
pmu = axp192()
pmu.enablePMICSleepMode(True)

Maixpy案例程序

Maixpy docs

Github

Quoted from: https://github.com/anoken/purin_wo_motto_mimamoru_gijutsu/tree/master/03_maixpy_example

Button

example


import lcd
from Maix import I2S, GPIO
from fpioa_manager import fm
from board import board_info
 
lcd.init()
fm.register(board_info.BUTTON_A, fm.fpioa.GPIO1)
but_a=GPIO(GPIO.GPIO1, GPIO.IN, GPIO.PULL_UP)
 
fm.register(board_info.BUTTON_B, fm.fpioa.GPIO2)
but_b = GPIO(GPIO.GPIO2, GPIO.IN, GPIO.PULL_UP)
 
but_a_pressed = 0
but_b_pressed = 0
 
while(True):
    if but_a.value() == 0 and but_a_pressed == 0:
        print("A_push")
        but_a_pressed=1
    if but_a.value() == 1 and but_a_pressed == 1:
        print("A_release")
        but_a_pressed=0
 
    if but_b.value() == 0 and but_b_pressed == 0:
        print("B_push")
        but_b_pressed=1
    if but_b.value() == 1 and but_b_pressed == 1:
        print("B_release")
        but_b_pressed=0

LED

example


from fpioa_manager import *
from Maix import GPIO
from board import board_info
 
fm.register(board_info.BUTTON_A, fm.fpioa.GPIO1)
but_a=GPIO(GPIO.GPIO1, GPIO.IN, GPIO.PULL_UP)
 
fm.register(board_info.BUTTON_B, fm.fpioa.GPIO2)
but_b = GPIO(GPIO.GPIO2, GPIO.IN, GPIO.PULL_UP)
 
fm.register(board_info.LED_W, fm.fpioa.GPIO3)
led_w = GPIO(GPIO.GPIO3, GPIO.OUT)
led_w.value(1) # LED is Active Low
 
fm.register(board_info.LED_R, fm.fpioa.GPIO4)
led_r = GPIO(GPIO.GPIO4, GPIO.OUT)
led_r.value(1) # LED is Active Low
 
fm.register(board_info.LED_G, fm.fpioa.GPIO5)
led_g = GPIO(GPIO.GPIO5, GPIO.OUT)
led_g.value(1) # LED is Active Low
 
fm.register(board_info.LED_B, fm.fpioa.GPIO6)
led_b = GPIO(GPIO.GPIO6, GPIO.OUT)
led_b.value(1) # LED is Active Low
 
lcd.init()
while(True):
    if but_a.value() == 0:
        led_w.value(0)
        led_r.value(1)
        led_g.value(1)
        led_b.value(1)
 
    elif but_b.value()== 0:
        led_w.value(1)
        led_r.value(0)
        led_g.value(1)
        led_b.value(1)
 
    else:
        led_w.value(1)
        led_r.value(1)
        led_g.value(1)
        led_b.value(1)

PWM

example

import time,math
from machine import Timer,PWM
from fpioa_manager import fm
from board import board_info
 
tim = Timer(Timer.TIMER0, Timer.CHANNEL0, mode=Timer.MODE_PWM)
PWM_ch = PWM(tim, freq=500000, duty=0, pin=board_info.LED_W)
cnt=0
while(True):
    duty_val=math.fabs(math.sin(cnt))*100
    PWM_ch.duty(duty_val)
    cnt=cnt+0.01
    time.sleep_ms(10)

I2C scan

example

    
from machine import I2C
i2c = I2C(I2C.I2C0, freq=100000, scl=28, sda=29)
devices = i2c.scan()
print(devices)

MPU6886

example


from machine import I2C
import lcd
MPU6886_ADDRESS=0x68
MPU6886_WHOAMI=0x75
MPU6886_ACCEL_INTEL_CTRL=  0x69
MPU6886_SMPLRT_DIV=0x19
MPU6886_INT_PIN_CFG=   0x37
MPU6886_INT_ENABLE=0x38
MPU6886_ACCEL_XOUT_H=  0x3B
MPU6886_TEMP_OUT_H=0x41
MPU6886_GYRO_XOUT_H=   0x43
MPU6886_USER_CTRL= 0x6A
MPU6886_PWR_MGMT_1=0x6B
MPU6886_PWR_MGMT_2=0x6C
MPU6886_CONFIG=0x1A
MPU6886_GYRO_CONFIG=   0x1B
MPU6886_ACCEL_CONFIG=  0x1C
MPU6886_ACCEL_CONFIG2= 0x1D
MPU6886_FIFO_EN=   0x23
 
i2c = I2C(I2C.I2C0, freq=100000, scl=28, sda=29)
devices = i2c.scan()
time.sleep_ms(10)
print("i2c",devices)
 
def write_i2c(address, value):
    i2c.writeto_mem(MPU6886_ADDRESS, address, bytearray([value]))
    time.sleep_ms(10)
 
def MPU6866_init():
    write_i2c(MPU6886_PWR_MGMT_1, 0x00)
    write_i2c(MPU6886_PWR_MGMT_1, 0x01<<7)
    write_i2c(MPU6886_PWR_MGMT_1,0x01<<0)
    write_i2c(MPU6886_ACCEL_CONFIG,0x10)
    write_i2c(MPU6886_GYRO_CONFIG,0x18)
    write_i2c(MPU6886_CONFIG,0x01)
    write_i2c(MPU6886_SMPLRT_DIV,0x05)
    write_i2c(MPU6886_INT_ENABLE,0x00)
    write_i2c(MPU6886_ACCEL_CONFIG2,0x00)
    write_i2c(MPU6886_USER_CTRL,0x00)
    write_i2c(MPU6886_FIFO_EN,0x00)
    write_i2c(MPU6886_INT_PIN_CFG,0x22)
    write_i2c(MPU6886_INT_ENABLE,0x01)
 
def MPU6866_read():
    accel = i2c.readfrom_mem(MPU6886_ADDRESS, MPU6886_ACCEL_XOUT_H, 6)
    accel_x = (accel[0]<<8|accel[1])
    accel_y = (accel[2]<<8|accel[3])
    accel_z = (accel[4]<<8|accel[5])
    if accel_x>32768:
        accel_x=accel_x-65536
    if accel_y>32768:
        accel_y=accel_y-65536
    if accel_z>32768:
        accel_z=accel_z-65536
    return accel_x,accel_y,accel_z
 
MPU6866_init()
lcd.init()
lcd.clear()
aRes = 8.0/32768.0;
while True:
    x,y,z=MPU6866_read()
    accel_array = [x*aRes, y*aRes, z*aRes]
    print(accel_array);
    lcd.draw_string(20,50,"x:"+str(accel_array[0]))
    lcd.draw_string(20,70,"y:"+str(accel_array[1]))
    lcd.draw_string(20,90,"z:"+str(accel_array[2]))
    time.sleep_ms(10)

SH200Q

example

from machine import I2C
import lcd
 
i2c = I2C(I2C.I2C0, freq=100000, scl=28, sda=29)
devices = i2c.scan()
print("i2c",devices)
 
SH200I_ADDRESS=108
SH200I_WHOAMI= 0x30
SH200I_ACC_CONFIG= 0x0E
SH200I_GYRO_CONFIG= 0x0F
SH200I_GYRO_DLPF= 0x11
SH200I_FIFO_CONFIG= 0x12
SH200I_ACC_RANGE= 0x16
SH200I_GYRO_RANGE= 0x2B
SH200I_OUTPUT_ACC= 0x00
SH200I_OUTPUT_GYRO= 0x06
SH200I_OUTPUT_TEMP= 0x0C
SH200I_REG_SET1= 0xBA
SH200I_REG_SET2= 0xCA   #ADC reset
SH200I_ADC_RESET=  0xC2   #drive reset
SH200I_SOFT_RESET= 0x7F
SH200I_RESET= 0x75
 
def write_i2c(address, value):
    i2c.writeto_mem(SH200I_ADDRESS, address, bytearray([value]))
    time.sleep_ms(10)
 
def SH200I_init():
    # FIFO reset
    write_i2c(SH200I_FIFO_CONFIG, 0x00)
    # Chip ID default=0x18
    tempdata = i2c.readfrom_mem(SH200I_ADDRESS, 0x30, 1);
    print ("ChipID:", tempdata);
 
    #sh200i_ADCReset
    tempdata = i2c.readfrom_mem(SH200I_ADDRESS, SH200I_ADC_RESET, 1);
    tempdata = tempdata[0] | 0x04
    write_i2c(SH200I_ADC_RESET, tempdata)
    tempdata = tempdata & 0xFB
    write_i2c(SH200I_ADC_RESET, tempdata)
    tempdata = i2c.readfrom_mem(SH200I_ADDRESS, 0xD8, 1)
    tempdata = tempdata[0] | 0x80
    write_i2c(0xD8, tempdata)
    tempdata = tempdata & 0x7F;
    write_i2c(0xD8, tempdata)
    write_i2c(0x78, 0x61)
    write_i2c(0x78, 0x00)
    #set acc odr 256hz
    #   0x81 1024hz   //0x89 512hz    //0x91  256hz
    write_i2c(SH200I_ACC_CONFIG, 0x91)
    # set gyro odr 500hz
    #0x11 1000hz    //0x13  500hz   //0x15  256hz
    write_i2c(SH200I_GYRO_CONFIG, 0x13)
    # set gyro dlpf 50hz
    #0x00 250hz   //0x01 200hz   0x02 100hz  0x03 50hz  0x04 25hz
    write_i2c(SH200I_GYRO_DLPF, 0x03)
    # set no buffer mode
    write_i2c(SH200I_FIFO_CONFIG, 0x00)
    # set acc range +-8G
    write_i2c(SH200I_ACC_RANGE, 0x01)
    # set gyro range +-2000DPS/s
    write_i2c(SH200I_GYRO_RANGE, 0x00)
    tempdata = 0xC0;
    write_i2c(SH200I_REG_SET1, 0xC0)
    tempdata = i2c.readfrom_mem(SH200I_ADDRESS, SH200I_REG_SET2, 1)
    tempdata = tempdata[0] | 0x10
    # ADC Reset
    write_i2c(SH200I_REG_SET2, tempdata)
    tempdata = tempdata | 0xEF
    write_i2c(SH200I_REG_SET2, tempdata)
 
def SH200I_acc_read():
    accel = i2c.readfrom_mem(SH200I_ADDRESS, SH200I_OUTPUT_ACC, 6)
    accel_x = (accel[1]<<8|accel[0]);
    accel_y = (accel[3]<<8|accel[2]);
    accel_z = (accel[5]<<8|accel[4]);
    if accel_x>32768:
        accel_x=accel_x-65536
    if accel_y>32768:
        accel_y=accel_y-65536
    if accel_z>32768:
        accel_z=accel_z-65536
    return accel_x,accel_y,accel_z
 
SH200I_init()
lcd.init()
lcd.clear()
aRes = 8.0/32768.0;
while True:
    x,y,z=SH200I_acc_read()
    accel_array = [x*aRes, y*aRes, z*aRes]
    print(accel_array);
    lcd.draw_string(20,50,"x:"+str(accel_array[0]))
    lcd.draw_string(20,70,"y:"+str(accel_array[1]))
    lcd.draw_string(20,90,"z:"+str(accel_array[2]))
    time.sleep_ms(10)

AXP192

example


import pmu,lcd
lcd.init()
lcd.clear()
axp = pmu.axp192()
axp.enableADCs(True)
while True:
    vbat = axp.getVbatVoltage()
    usb_vol = axp.getUSBVoltage()
    usb_cur = axp.getUSBInputCurrent()
    connext_vol = axp.getConnextVoltage()
    connext_input_current = axp.getConnextInputCurrent()
    bat_current= axp.getBatteryChargeCurrent()
    bat_dis_current = axp.getBatteryDischargeCurrent()
    bat_instant_watts = axp.getBatteryInstantWatts()
    temp = axp.getTemperature()
 
    lcd.draw_string(20,0,"usb_vol:"+str(usb_vol))
    lcd.draw_string(20,15,"usb_cur:"+str(usb_cur))
    lcd.draw_string(20,30,"connext_vol:"+str(connext_vol))
    lcd.draw_string(20,45,"connext_input_current:"+str(connext_input_current))
    lcd.draw_string(20,60,"bat_current:"+str(bat_current))
    lcd.draw_string(20,75,"bat_dis_current:"+str(bat_dis_current))
    lcd.draw_string(20,90,"bat_instant_watts:"+str(bat_instant_watts))
    lcd.draw_string(20,105,"temp:"+str(temp))

Screen Brightness

example

import lcd  #for test
from machine import I2C
AXP192_ADDR=0x34
Backlight_ADDR=0x91
level=50
i2c = I2C(I2C.I2C0, freq=100000, scl=28, sda=29)
val = (level+7) << 4
i2c.writeto_mem(AXP192_ADDR, Backlight_ADDR,int(val))
}

Image Display

example

import sensor,image,lcd
lcd.init()
lcd.rotation(2)
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
sensor.run(1)
while True:
    img=sensor.snapshot()
    lcd.display(img)
SD

example


import sensor, image, lcd, os
from Maix import I2S, GPIO
from fpioa_manager import fm
from board import board_info
fm.register(board_info.BUTTON_A, fm.fpioa.GPIO1)
but_a=GPIO(GPIO.GPIO1, GPIO.IN, GPIO.PULL_UP)
fm.register(board_info.BUTTON_B, fm.fpioa.GPIO2)
but_b = GPIO(GPIO.GPIO2, GPIO.IN, GPIO.PULL_UP)
is_button_a = 0
is_button_b = 0
 
lcd.init()
lcd.rotation(2)
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
sensor.run(1)
 
path = "/sd/"
ext=".jpg"
cnt=0
img_read = image.Image()
 
#os.mkdir("save")
print(os.listdir())
 
while True:
    if is_button_b == 1:
        lcd.display(img_read)
 
    else :
        img=sensor.snapshot()
        lcd.display(img)
 
    if but_a.value() == 0 and is_button_a == 0:
        print("save image")
        cnt+=1
        fname=path+str(cnt)+ext
        print(fname)
        img.save(fname, quality=95)
        is_button_a=1
 
    if but_a.value() == 1 and is_button_a == 1:
        is_button_a=0
 
    if but_b.value() == 0 and is_button_b == 0:
        fname=path+str(cnt)+ext
        print(fname)
        img_read = image.Image(fname)
        is_button_b=1
 
    if but_b.value() == 1 and is_button_b == 1:
        is_button_b=0

Filter

example


import sensor,image,lcd,gc,time,uos
from fpioa_manager import *
from Maix import I2S, GPIO
fm.register(board_info.BUTTON_A, fm.fpioa.GPIO1)
but_a=GPIO(GPIO.GPIO1, GPIO.IN, GPIO.PULL_UP)
fm.register(board_info.BUTTON_B, fm.fpioa.GPIO2)
but_b = GPIO(GPIO.GPIO2, GPIO.IN, GPIO.PULL_UP)
 
isButtonPressedA = 0
isButtonPressedB = 0
 
lcd.init()
lcd.rotation(2)
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
sensor.set_windowing((224, 224))
sensor.run(1)
cnt=0
while True:
    if but_a.value() == 0 and isButtonPressedA == 0:
        cnt=cnt+1
        isButtonPressedA=1
 
    if but_a.value() == 1 and isButtonPressedA == 1:
        isButtonPressedA=0
    img = sensor.snapshot()
 
    if cnt==1:
        img.negate()
        img.draw_string(10,60, "negate",color=(255,0,0))
    elif cnt==2:
        img.cartoon(seed_threshold=0.05, floating_thresholds=0.05)
        img.draw_string(10,60, "cartoon",color=(255,0,0))
    elif cnt==3:
        img.histeq(adaptive=True, clip_limit=3)
        img.draw_string(10,60, "histeq",color=(255,0,0))
    elif cnt==4:
        img.mode(1)
        img.draw_string(10,60, "mode",color=(255,0,0))
    elif cnt==5:
        thresholds = (90, 100, -128, 127, -128, 127)
        img.binary([thresholds], invert=False, zero=True)
        img.draw_string(10,60, "binary",color=(255,0,0))
    elif cnt==6:
        img.laplacian(1)
        img.draw_string(10,60, "laplacian",color=(255,0,0))
    elif cnt==7:
        img.gamma_corr(gamma = 0.5, contrast = 1.0, brightness = 0.0)
        img.draw_string(10,60, "gamma_corr",color=(255,0,0))
    elif cnt==8:
        img.gaussian(1)
        img.draw_string(10,60, "gaussian",color=(255,0,0))
    elif cnt==9:
        img.histeq()
        img.draw_string(10,60, "histeq",color=(255,0,0))
    elif cnt==10:
        img.lens_corr(strength = 1.8, zoom = 1.0)
        img.draw_string(10,60, "lens_corr",color=(255,0,0))
    elif cnt==11:
       img.linpolar(reverse=False)
       img.draw_string(10,60, "linpolar",color=(255,0,0))
    elif cnt==12:
       img.logpolar(reverse=False)
       img.draw_string(10,60, "logpolar",color=(255,0,0))
    elif cnt==13:
       img.mean(1)
       img.draw_string(10,60, "mean",color=(255,0,0))
    elif cnt==14:
       img.median(1, percentile=0.5)
       img.draw_string(10,60, "median",color=(255,0,0))
    elif cnt==15:
       img.midpoint(1, bias=0.5)
       img.draw_string(10,60, "midpoint",color=(255,0,0))
    elif cnt==16:
       img.bilateral(3, color_sigma=0.1, space_sigma=1)
       img.draw_string(10,60, "bilateral",color=(255,0,0))
    else :
        cnt=0
 
    lcd.display(img)

Advanced

example


import sensor, image, lcd, time
from fpioa_manager import fm
from Maix import I2S, GPIO
 
lcd.init()
lcd.rotation(2)
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
sensor.run(1)
origin = (0,0,0, 0,1,0, 0,0,0)
edge = (-1,-1,-1,-1,8,-1,-1,-1,-1)
sharp = (-1,-1,-1,-1,9,-1,-1,-1,-1)
relievo = (2,0,0,0,-1,0,0,0,-1)
fm.register(board_info.BUTTON_A, fm.fpioa.GPIO1)
but_a=GPIO(GPIO.GPIO1, GPIO.IN, GPIO.PULL_UP)
but_a_pressed = 0
but_b_pressed = 0
cnt=0
while True:
    if but_a.value() == 0 and but_a_pressed == 0:
        cnt=cnt+1
        print("A_push")
        but_a_pressed=1
    if but_a.value() == 1 and but_a_pressed == 1:
        print("A_release")
        but_a_pressed=0
 
    img=sensor.snapshot()
    if cnt==1:
        img.conv3(edge)
        img.draw_string(10,60, "edge",color=(255,0,0))
    elif cnt==2:
        img.conv3(sharp)
        img.draw_string(10,60, "sharp",color=(255,0,0))
    elif cnt==3:
        img.conv3(relievo)
        img.draw_string(10,60, "relievo",color=(255,0,0))
    else :
        cnt=0
    lcd.display(img)

File

example

    
import os
devices = os.listdir("/")
 
if "flash" in devices:
    os.chdir("/flash")
    print("flash")
    print(os.listdir())
if "sd" in devices:
    os.chdir("/sd")
    print("sd")
    print(os.listdir())

WAV Play

example


from fpioa_manager import *
from Maix import I2S, GPIO
import audio
 
fm.register(board_info.SPK_SD, fm.fpioa.GPIO0)
spk_sd=GPIO(GPIO.GPIO0, GPIO.OUT)
spk_sd.value(1)
fm.register(board_info.SPK_DIN,fm.fpioa.I2S0_OUT_D1)
fm.register(board_info.SPK_BCLK,fm.fpioa.I2S0_SCLK)
fm.register(board_info.SPK_LRCLK,fm.fpioa.I2S0_WS)
wav_dev = I2S(I2S.DEVICE_0)
 
def play_wav(fname):
    player = audio.Audio(path = fname)
    player.volume(20)
    wav_info = player.play_process(wav_dev)
    wav_dev.channel_config(wav_dev.CHANNEL_1,
        I2S.TRANSMITTER,resolution = I2S.RESOLUTION_16_BIT,
        align_mode = I2S.STANDARD_MODE)
    wav_dev.set_sample_rate(wav_info[1])
    while True:
        ret = player.play()
        if ret == None:
            break
        elif ret==0:
            break
    player.finish()
 
fm.register(board_info.BUTTON_A, fm.fpioa.GPIO1)
but_a=GPIO(GPIO.GPIO1, GPIO.IN, GPIO.PULL_UP)
but_a_pressed = 0
 
while True:
    if but_a.value() == 0 and but_a_pressed == 0:
        play_wav("reset.wav")
        but_a_pressed=1
    if but_a.value() == 1 and but_a_pressed == 1:
        but_a_pressed=0
 
player.finish()

LCD Draw

example


fimport lcd,math,image
lcd.init()
lcd.rotation(2)
lcd.clear()
x_zero=240//2
y_zero=135//2
x_zero_rot=x_zero
y_zero_rot=y_zero+90
 
def rot(x_in,y_in,theta):
    x_rot = (x_in - x_zero) * math.cos(theta)  - (y_in - y_zero) * math.sin(theta) + x_zero_rot;
    y_rot = (x_in - x_zero) * math.sin(theta) +  (y_in - y_zero) * math.cos(theta) + y_zero_rot;
    return int(x_rot),int(y_rot)
 
def rot2(x_in1,y_in1,x_in2,y_in2,theta):
    x_rot1 = (x_in1 - x_zero) * math.cos(theta)  - (y_in1 - y_zero) * math.sin(theta) + x_zero_rot;
    y_rot1 = (x_in1 - x_zero) * math.sin(theta)  +  (y_in1 - y_zero) * math.cos(theta) + y_zero_rot;
    x_rot2 = (x_in2 - x_zero) * math.cos(theta)  - (y_in2 - y_zero) * math.sin(theta) + x_zero_rot;
    y_rot2 = (x_in2 - x_zero) * math.sin(theta)  +  (y_in2 - y_zero) * math.cos(theta) + y_zero_rot;
    return int(x_rot1),int(y_rot1),int(x_rot2),int(y_rot2)
    
def draw_face(img,theta,cnt):
    img.draw_rectangle(0,0,240,135,color = (255, 255, 0), fill = True)
    if cnt<100:
        res = rot(40,70,theta)  #left_eye
        img.draw_circle(res[0], res[1], 42, color = (0, 0, 0),
            thickness = 2, fill = True)
        img.draw_circle(res[0], res[1], 40, color = (255, 255, 255), 
            thickness = 2, fill = True)
        img.draw_circle(res[0], res[1], 30, color = (0, 0, 0),
            thickness = 2, fill = True)
        res = rot(200,70,theta) #right_eye
        img.draw_circle(res[0], res[1], 42, color = (0, 0, 0), 
            thickness = 2, fill = True)
        img.draw_circle(res[0], res[1], 40, color = (255, 255, 255),
            thickness = 2, fill = True)
        img.draw_circle(res[0], res[1], 30, color = (0, 0, 0), 
            thickness = 2, fill = True)
    else :
        res = rot2(10,70,80,70,theta)
        img.draw_line(res[0], res[1], res[2], res[3], color = (0, 0, 0), 
            thickness = 10)
        res = rot2(170,70,250,70,theta)
        img.draw_line(res[0], res[1], res[2], res[3], color = (0, 0, 0), 
            thickness = 10)
    res = rot2(170,10,240,-20,theta)
    img.draw_line(res[0], res[1], res[2], res[3], color = (0, 0, 0),
            thickness = 15)
    res = rot2(70,10,0,-20,theta)
    img.draw_line(res[0], res[1], res[2], res[3], color = (0, 0, 0), 
            thickness = 15)
 
rot_theta=3.1415/2*3
cnt=0
while True:
    img = image.Image()
    draw_face(img,rot_theta,cnt)
    lcd.display(img)
    cnt+=1
    if cnt>200:
        cnt=0
    rot_theta=rot_theta+0.05

Exit

example


import sensor, image, time
clock = time.clock()
print(clock.fps())
sys.exit()

Microphone

example


## M5StickV Mic Record and Speaker Play
## A button is Play
## B button is Record

from Maix import GPIO, I2S, FFT
import image,lcd,math,time,gc,lcd
from board import board_info
from fpioa_manager import *
import audio

# Button
fm.register(board_info.BUTTON_A, fm.fpioa.GPIO1)
fm.register(board_info.BUTTON_B, fm.fpioa.GPIO2)
but_a=GPIO(GPIO.GPIO1, GPIO.IN, GPIO.PULL_UP)
but_b = GPIO(GPIO.GPIO2, GPIO.IN, GPIO.PULL_UP)

#Microphone I2S Initialize

sample_rate = 22050
sample_points = 4096

fm.register(board_info.MIC_LRCLK, fm.fpioa.I2S0_WS, force=True)
fm.register(board_info.MIC_DAT, fm.fpioa.I2S0_IN_D0, force=True)
fm.register(board_info.MIC_CLK, fm.fpioa.I2S0_SCLK, force=True)

mic_dev = I2S(I2S.DEVICE_0)
mic_dev.channel_config(mic_dev.CHANNEL_0, mic_dev.RECEIVER, align_mode=I2S.STANDARD_MODE)
mic_dev.set_sample_rate(sample_rate)
print(mic_dev)

#Speaker I2s Initialize
fm.register(board_info.SPK_SD, fm.fpioa.GPIO0)
spk_sd=GPIO(GPIO.GPIO0, GPIO.OUT)
spk_sd.value(1)
fm.register(board_info.SPK_DIN,fm.fpioa.I2S1_OUT_D1)
fm.register(board_info.SPK_BCLK,fm.fpioa.I2S1_SCLK)
fm.register(board_info.SPK_LRCLK,fm.fpioa.I2S1_WS)
wav_dev = I2S(I2S.DEVICE_1)
print(wav_dev)

#Record Wav File
def record_wav(fname):
    lcd.draw_string(20,50,"record_wav")
    print("Record Wav File Start")
    player = audio.Audio(path=fname, is_create=True, samplerate=sample_rate)
    queue = []
    for i in range(200):
        tmp = mic_dev.record(sample_points)
        if len(queue) > 0:
            ret = player.record(queue[0])
            queue.pop(0)
        #lcd.draw_string(20,50,"REC",i)
        mic_dev.wait_record()
        queue.append(tmp)
    player.finish()
    lcd.clear()
    print("Record Wav File finish")

#Play Wav File
def play_wav(fname):
    lcd.draw_string(20,50,"play_wav")
    print("Play Wav File Start")
    player = audio.Audio(path = fname)
    player.volume(100)
    wav_info = player.play_process(wav_dev)
    wav_dev.channel_config(wav_dev.CHANNEL_1,
        I2S.TRANSMITTER,resolution = I2S.RESOLUTION_16_BIT,
        align_mode = I2S.STANDARD_MODE)
    wav_dev.set_sample_rate(sample_rate)
    while True:
        ret = player.play()
        if ret == None:
            break
        elif ret==0:
            break
    player.finish()
    lcd.clear()
    print("Play Wav File finish")

lcd.init()
lcd.clear()
lcd.rotation(2)

but_stu_a = 1
but_stu_b = 1

while(True):
    if but_a.value() == 0 and but_stu_a == 1:
        lcd.clear(236, 36, 36)
        play_wav("record_1.wav")
        but_stu_a = 0
    if but_a.value() == 1 and but_stu_a == 0:
        but_stu_a = 1


    if but_b.value() == 0 and but_stu_b == 1:
        lcd.clear(255,255,0)
        record_wav("record_1.wav")
        but_stu_b = 0
    if but_b.value() == 1 and but_stu_b == 0:
        but_stu_b = 1
On This Page