Example 1 bluebit重力遥控小车

Part list:

• 1x micro:bit
• 1x blue:bit-主板
• 2x blue:bit-电机驱动

Description：
通过micro:bit重力感应遥控blue:bit小车
使用方法：按下micro:bit A按键左右前后倾斜，通过2轴重力控制小车

Connection：

小车左电机	AN1->P14 AN2->P13
小车右电机	AN1->P16 AN2->P15

Programs：

• microbit重力遥控端程序

from microbit import *
import radio
radio.on()
radio.config(length=8, queue=3, channel=79, power=7, 
             address=0x44773311, group=0x1B, data_rate=radio.RATE_250KBIT)
    
msg = bytearray(5)
x = 0
y = 0
z = 0
a = 0
while True:
    x = accelerometer.get_x()
    y = accelerometer.get_y()
    z = accelerometer.get_z()
    if button_a.is_pressed():
        a=1 
    else:
        a=0
    
    x = x + 10000;
    msg[0] = int(x / 256)
    msg[1] = x % 256
    y = y + 10000;
    msg[2] = int(y / 256)
    msg[3] = y % 256
    msg[4] = a
    radio.send_bytes(msg)
    sleep(50)