Meowbit MicroPython API
Meowbit MicroPython API
Import Meowbit library
from meowbit import *Meowbit String Display
Meowbit support both English and Chinese characters.
Display English
screen.text(text, x=0, y=0, ext=1, color=255)Coordinates refer to top left o text.
ext is text size.
color is color, RGB is supported.
Display Chinese
screen.textCh(text, x=0, y=0, ext=1, color=255)Coordinates refer to top left o text.
ext is text size.
color: RGB is supported.
Sample Program
from meowbit import *
screen.text('hello world')
screen.textCh('你好世界', x=30, y=20, ext=2, color=(0,0,255))Meowbit Display Shapes
Screen Fill
screen.fill(color)Fill screen with color.
color: RGB is supported.
Draw Pixel
screen.pixel(x,y,color)color: RGB is supported.
Draw Line
screen.line(x1, y1, x2, y2, color)color: RGB is supported.
Sample Program
from meowbit import *
screen.fill((100,0,100))
screen.pixel(10,10,(0,255,0))
screen.line(50,50,100,100,(0,0,255))Draw Rectangle
screen.rect(x, y, width, height, color=255, fill=0)Coordinates refer to top left.
color: RGB is supported.
fill = 1 to fill shape, fill = 0 for no fill.
Draw Circle
screen.circle(x, y, r, color=(R, G, B), fill=0)Coordinates refer to center.
color: RGB is supported.
fill = 1 to fill shape, fill = 0 for no fill.
Draw Triangle
screen.triangle(x1, y1, x2, y2, x3, y3, color=255, fill=0)color: RGB is supported.
fill = 1 to fill shape, fill = 0 for no fill.
Draw Polygon
screen.polygon(x, y, sides=3, r=10, th=3, rot=0, color=255, fill=0)Coordinates refer to center.
Sides: no. of side
th: thickness of the border
rot: rotation angle
color: RGB is supported.
fill = 1 to fill shape, fill = 0 for no fill.
Sample Program
from meowbit import *
screen.fill((100,0,100))
screen.pixel(10,10,(0,255,0))
screen.line(50,50,100,100,(0,0,255))Screen Refresh
screen.refresh()Set Screen Auto Sync
screen.sync=valSet to 1 to turn on scren sync, 0 to turn off
Sample Program
from meowbit import *
screen.sync=0
x=0
while 1:
screen.fill(0)
screen.circle(x,40,20,(255,0,0),1)
x+=1
screen.refresh()Meowbit Display Picture
Show bmp
screen.loadBmp(path, x=0, y=0)path: file name
Coordinates refer to top left
Show gif
screen.loadgif(path, x = 0, y = 0)path: file name
Coordinates refer to top left
Sample Program
# 顯示bmp
from meowbit import *
screen.loadBmp('haimian.bmp')# 顯示gif
from meowbit import *
screen.loadBmp('haimian.gif')Meowbit Buttons
Get Button Status
sensor.btnValue(btn)btn: ’a’ , ’b’ , ’up’ , ’down’ , ’left’ , ’right’
Button Triggers
sensor.btnTrig[btn] = fn
sensor.startSchedule()btn: ’a’ , ’b’ , ’up’ , ’down’ , ’left’ , ’right’
fn: function
startSchedule(): enable running in background
Sample Program
from meowbit import *
screen.sync=0
while 1:
screen.fill(0)
screen.text(sensor.btnValue('a'))
screen.refresh()from meowbit import *
import random as r
screen.fill(0)
def drawCircle():
screen.circle(r.randint(0,160),r.randint(0,128),10,(255,0,0),1)
while 1:
sensor.btnTrig['b']=drawCirclefrom meowbit import *
import random as r
screen.fill(0)
def drawCircle():
screen.circle(r.randint(0,160),r.randint(0,128),10,(255,0,0),1)
sensor.btnTrig['b']=drawCircle
sensor.startSchedule()Meowbit LED
Turn On / Off
led1.on()
led2.off()Toggle Switch
led1.toggle()Brightness Control
led1.intensity(brightness)Brightness: 0-255
Sample Program
from meowbit import *
from time import sleep
for i in range(5):
led1.on()
sleep(1)
led1.off()
sleep(1)from meowbit import *
from time import sleep
for i in range(5):
led2.toggle()
sleep(1)from meowbit import *
import time
for i in range(256):
led1.intensity(i)
time.sleep_ms(10)
for i in range(255, 0, -1):
led1.intensity(i)
time.sleep_ms(10)Meowbit Buzzer
Buzzer Tone
buzzer.tone(freq, delay = 0.5)freq: frequency, reference
delay: duration in seconds, -1 for infinite
Buzzer Note
buzzer.note(note, delay = 0.5)note: 0~130
delay: duration in seconds, -1 for infinite
Buzzer Rest
buzzer.rest(rest)delay: duration in seconds, -1 for infinite
Buzzer Melody
buzzer.melody(m, bpm = 120)m: melody, in the format of m+octave:duration, r for rest
for example: “d5:1 b4:1” , “a3:2 r a3:2”
bpm: default 120
These melodies are built-in
CORRECT，NOTICE，ERROR
Buzzer Stop
buzzer.stop()Sample Program
from meowbit import *
def stopBuzzer():
buzzer.stop()
sensor.btnTrig['a'] = stopBuzzer
sensor.startSchedule()
buzzer.tone(262, 1)
buzzer.rest(1)
buzzer.note(60, 1)
buzzer.rest(1)
buzzer.melody("d r d4:4")
buzzer.rest(1)
buzzer.melody(CORRECT)from meowbit import *
while 1:
if sensor.btnValue('a'):
buzzer.tone(240, -1)
else:
buzzer.stop()Meowbit Sensors
Temperature Sensor
sensor.getTemp()Light Sensor
sensor.getLight()Sample Program
from meowbit import *
screen.sync = 0
while 1:
screen.fill(0)
lightValue = sensor.getLight()
tempValue = sensor.getTemp()
screen.text('Temperature:' + str(tempValue), 20, 50)
screen.text('Brightness: ' + str(lightValue), 20, 70)
screen.refresh()Meowbit Accelerometer
Meowbit上有個3軸的陀螺儀，可以檢測加速度和傾斜度等的數值。
Acceleration Value
sensor.accX()
sensor.accY()
sensor.accZ()Unit: g(m/s^2)
Gyro Value
sensor.gyroX()
sensor.gyroY()
sensor.gyroZ()Unit: g(deg/s)
Roll Degree
sensor.roll()Pitch Degree
sensor.pitch()Gesture
sensor.gesture(ges)ges: ‘shake’, ‘freefall’, ‘tilt_up’, ‘tilt_down’, ‘tilt_left’, ‘tilt_right’, 'face_up’, ‘face_down’
Gesture Trigger
sensor.gesTrig[ges] = fnges: ‘shake’, ‘freefall’, ‘tilt_up’, ‘tilt_down’, ‘tilt_left’, ‘tilt_right’, 'face_up’, ‘face_down’
fn: function
startSchedule(): enable trigger to run in background
Sample Program
from meowbit import *
screen.sync = 0
while 1:
screen.fill(0)
screen.text('acc :x/y/z', 20, 10, 1, (168, 233, 74))
screen.text(round(sensor.accX(), 2), 10, 30)
screen.text(round(sensor.accY(), 2), 60, 30)
screen.text(round(sensor.accZ(), 2), 110, 30)
screen.text('gyro :x/y/z', 10, 50, 1, (74, 233, 168))
screen.text(round(sensor.gyroX(), 2), 10, 70)
screen.text(round(sensor.gyroY(), 2), 60, 70)
screen.text(round(sensor.gyroZ(), 2), 110, 70)
screen.text('roll:' + str(round(sensor.roll())), 20, 90, 1, (233, 74, 168))
screen.text('pitch:' + str(round(sensor.pitch())), 20, 110, 1, (233, 168, 74))
screen.text('face_up', 100, 95, 1, (74, 168, 233))
screen.text(sensor.gesture('face_up'), 105, 110)
screen.refresh()GPIO
Initiate GPIO Pin mode
pin = MeowPin(pin, mode)pin: P1-P20
mode:
IN: Digital In
OUT: Digital Out
ANALOG: Analog In
PWM: Analog Out
Digital Read
getDigital()Analog Read
getAnalog()Digital Write
setDigital(val)Analog Write
setAnalog(val)set_pulse_width(duty)Sample Program
from meowbit import *
screen.sync = 0
in_pin = MeowPin('P1', ANALOG)
out_pin = MeowPin('P2', OUT)
while 1:
screen.fill(0)
screen.text(in_pin.getAnalog())
screen.refresh()
if (in_pin.getAnalog() > 2000):
out_pin.setDigital(1)
else:
out_pin.setDigital(0)Last updated