M5StickV MaixPy Getting Started Guide

Driver Installation

Connect the device to a PC, open the device manager and install the FTDI driver for the device. As an example, in a Windows 10 environment, download the driver file that matches the operating system, and unzip it, then install it through the device manager. (Note: In some system environments, it might be necessary to install the driver twice before it takes effect. Unrecognized device names are usually M5Stack or USB Serial. It is recommended for Windows to use the driver files directly in the device manager for installation (custom update), as the executable file installation method might not work properly). Click here to download the FTDI driver

For MacOS users, please check System Preferences -> Security & Privacy -> General -> Allow apps downloaded from -> App Store and identified developers before installing.

EasyLoader

EasyLoader is a simple and fast program burner that comes with a product-related example program. You can burn it to the main controller in simple steps for a series of function verifications.

Download Windows Version Easyloader

Example Description:
Equipped with Maixpy firmware, testing camera, screen graphic display functions, click the HOME key to toggle the back fill light on and off.

Firmware Burning

Users who need to specify the burning file can use Kflash for firmware burning.

Click the download link for the Kflash_GUI burning tool that corresponds to your operating system below.

Software Version	Download Link
Kflash_GUI_Windows	Download
Kflash_GUI_MacOS	Download
Kflash_GUI_Linux	Download

Connect the device to the computer via a Type-C data cable, double-click to open the Kflash_GUI application, select the corresponding device port, development board type (M5StickV), firmware program, and baud rate. Click download to start burning.

Kflash

For users who prefer command line operations, Kflash can also be selected as a firmware burning tool. Click here for details

Serial Debugging Tool

Programming M5StickV requires a serial debugging tool, you can use Putty as the serial debugging tool, click here to visit the Putty resource page, select Putty for your operating system, download, and install.

After running Putty, connect the M5StickV to the computer port via a Type-C data cable,

set the corresponding port number and baud rate in Putty, and click "open" to start the connection. (You can find the port number used by M5StickV through the device manager)

After a successful connection, you will automatically enter the MaixPy interactive interface. At this point, the device is running the default program, you can interrupt its operation by pressing the shortcut key "Ctrl+C" and enter the command line.

Hello World

Enter the following code in the command line, and the M5StickV screen will display "hello world".

import lcd

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

Editing and Running Files

Editing Files

In the interactive interpreter (REPL), we can conveniently enter programs and get the running results immediately, but this is only suitable for verifying short programs. In actual projects, the large code volume forces us to edit the code into individual files.

In MaixPy, there is a built-in open-source editor Micropython Editor(pye) , which makes it very convenient to modify program files.

Use os.listdir() to view files in the current directory,

Use pye("hello.py") to create a file and enter editing mode (if a file with the same name exists, it only enters editing). Shortcut keys and usage instructions can be viewed here

After finishing editing in the editor, press Ctrl+S > Enter to save, press Ctrl+Q to exit editing

Note: This editor requires certain requirements for the serial tool used. It must set the BackSpace key to the DEL function, otherwise pressing BackSpace invokes the same function as Ctrl+H (i.e., character replacement)

Running Files

Use os.chdir() to change the current directory to the file's directory, such as os.chdir("/flash")

Method one: `import`

Then execute import hello

You should see the output hello maixpy

This method is simple and easy to use, but it is worth noting that currently, import can only be used once. If import is used a second time, the file will not execute again. If you need to execute multiple times, it is recommended to use the method below

Method two: `exec()`

Use the exec() function to execute

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

Auto-Run Script at Boot

The system will create a boot.py file in the /flash or /sd directory, which will automatically execute this script at boot. Edit the content of this script to implement auto-start

MaixPy IDE

Download MaixPy IDE

MaixPy IDE can conveniently realize real-time editing, uploading, execution of script programs, as well as real-time monitoring of camera images, file transfer, and other functions. Using MaixPy IDE, because the compression and transmission of data consume some resources, performance will be slightly reduced. However, for developers who do not have stringent performance requirements or are in the debugging stage, this will be a very good development tool.

MaixPy IDE

Install MaixPy IDE

For the Windows platform, you can directly double-click the exe file to run the installation program.

For Linux, grant run permission from the command line, then execute

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

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

Using MaixPy IDE

Run MaixPy IDE, click the toolbar, select the model of the development board.Tool-> Select Board-> M5StickV (Tools->Select Board)

Click the connection button in the lower left corner, and select the correct connection port, then click OK.

<img src=" https://static-cdn.m5stack.com/resource/docs/static/assets/img/get

ting_started_pics/m5stickv/ide_02.webp" width="70%">

Once the connection button turns from green to red, it indicates that the connection has been successfully made. You can edit code in the upper editing box, and click the run button in the lower left corner to execute the code and perform verification.

Video Tutorial

WS2812

The firmware includes a built-in WS2812 RGB LED driver library. Below is a reference example:

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

Description: Use this API to implement short press reset, long press sleep. Pass in True or False, True to start button detection, False to cancel detection.

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

Maixpy Example Programs

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

**example**
```cpp

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

LCD Draw

example

import 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
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)
        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

Ezdata

Easyloader

Home Assistant

IoT Cloud

AWS IoT Core

LoRa & LoRaWAN

TTN

Network

Ai Camera

UnitV2

M5StickV/UnitV

WiFi Camera

TimerCAM

Linux

CM4Stack

CoreMP135

Smart Home

M5AtomEcho

M5Paper

Motor Control

Hobby Kits

M5StickV MaixPy Getting Started Guide

Driver Installation

EasyLoader

Firmware Burning

Kflash

Serial Debugging Tool

Hello World

Editing and Running Files

Editing Files

Running Files

Method one: import

Method two: exec()

Auto-Run Script at Boot

MaixPy IDE

Download MaixPy IDE

Install MaixPy IDE

Using MaixPy IDE

WS2812

PMU

Maixpy Example Programs

Button

LED

PWM

I2C scan

MPU6886

SH200Q

AXP192

Screen Brightness

Image Display

SD

Filter

Advanced

File

WAV Play

LCD Draw

Exit

Microphone

On This Page

Method one: `import`

Method two: `exec()`