M5StickV Maixpy Quick Start

Driver Installation

Connect the device to the PC. If the port cannot be recognized normally, the user can manually install the FTDI driver to fix the problem. Take the win10 environment as an example, download the driver file that matches the operating system, unzip it, and install it through the device manager. (Note: In some system environments, the driver needs to be installed twice for the driver to take effect. The unrecognized device name is usually M5Stack or USB Serial. Windows recommends using the driver file to install directly in the device manager (custom Update), the executable file installation method may not work properly). Click here to download FTDI driver

For MacOS users, please tick System Preferences -> Security and Privacy -> General -> Allow downloadable apps from the following locations -> App Store and Approved Developer Options .

EasyLoader

EasyLoader is a concise and fast program writer, which has a built-in case program related to the product. It can be burned to the main control by simple steps to perform a series of function verification.

Download Windows Version Easyloader

Description:
Equipped with Maixpy firmware, test camera, screen graphics display function, and then press the HOME button to turn on the rear fill light.

Firmware

Users who use an operating system other than Windows or who need to specify a burning file can use Kflash for firmware burning. Click the link below to download the firmware.

  1. Click and download the right Kflash_GUI burning tool base on your operating system.
  1. Connect the device to the computer through the Type-C data cable, double-click to open the burning tool Kflash_GUI application, select the corresponding device port, development board type (M5StickV), firmware program, baud rate. Click to download , start burning.

Kflash

3.For people who used to operate by using shell command, you can choose Kflash as your firmware burning tool. Click for more detail

Serial-Tool

  1. You will need a serial debugging tool for programming M5StickV, you can use Putty in here , to be your serial debugging tool, click here to visit Putty resource page, download and install the exact Putty base on your operating system.
  1. Run Putty, connect M5StickV to your PC, in Putty, set COM number, baud rate, click "open", by now the connect process should start.(you can check the COM number in device manager on your PC)

When connected, it will automatically enter Maixpy UI. Now the device is runing the default code, you can terminate it by "Ctrl+C".

Hello World

Type in the following code, a display "hello world" will show on the screen .

import lcd

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

Edit and Run the Code

Editting

The language shell programm(REPL) is good for instant code validatation, it can be used at short code programming and validation. In real project where we will have massive amount of code, in that case we will need a Code Editor for better orgnization of the code files.

An open source Editor Micropython Editor(pye) is integrated inside MaixPy,which is convenient for us to manage the code.

function os.listdir() is for checking the files in current directory.

With function pye("hello.py"), you can create new files and enter editing mode(if file exists, it will only enter editing mode). Click for more

If editing finished, you can do Ctrl+S > Enter to save the script. Ctrl+Q to exit edit mode.

Notice:This editor has some requirements on the serial tool, key BackSpace has to be set as DEL function,or BackSpace will implement the same function as Ctrl+H(character replacement)

File Execution

Function os.chdir() is used for switching current directory to a certain directory, such as os.chdir("/flash")

Solution 1: import

Run import hello

You can see the output: hello maixpy

In this way, it is simple and handy, but there is something worth your attention, import can only be utilized once, the second time import won't work. If you need to use import mutiple times, please refer to solution 2 below

Solution 2: exec()

Use exec() function:

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

Auto Run after Power On

System will create a boot.py file at directory /flash or /sd , it will run this script after power on. Modifying this file will make the sustem run automatically.

MaixPy IDE

Download MaixPy IDE

MaixPy IDE can easily realize real-time editing, uploading, execution, and real-time monitoring of camera images, file transfer and other functions. Use MaixPy IDE, because data compression and transmission require a part of resources, performance will be reduced, but this is a great development tool for developers who are not demanding in performance or who are in the debugging phase.

MaixPy IDE

Install MaixPy IDE

Windows users can directly double-click the exe file to run the installer.

Linux command line to run permissions, then execute commands

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

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

Use MaixPy IDE

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

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

When the connection button changes from green to red, it has been connected successfully. You can edit the code in the edit box above. Click the Run button in the lower left corner to execute the code and verify it.

Video Tutorial

WS2812

The firmware has a built-in WS2812 RGB LED driver library. The following is a reference routine:

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

Introduction: Incoming True or False , True starts button detection,False cancel the detections, Button short press reset long press All the power is turned off under sleep mode, which should identical to the normal meaning of shutdown, but we adopt the idea from AXP192 datasheet as Sleep Mode.

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

Maixpy example

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
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