hc05通讯raspberry pi pico代码

在Raspberry Pi Pico上使用HC-05已成功配对，并且你的Pico已经连接了蓝牙串口。以下是一个简单的Python示例，展示了如何使用picofirm库来控制HC-05模块：

import busio
from digitalio import DigitalInOut, Direction
import board
from adafruit_ble import BLERadio
from adafruit_ble.advertising.standard import ProvideServicesAdvertisement
from adafruit_ble.services.nordic import UARTService

# HC-05默认地址和广播名称
ADDR = "xx:xx:xx:xx:xx:xx"  # 用实际的地址替换
NAME = "HC-05"

uart_service = UARTService()
advertisement = ProvideServicesAdvertisement(uart_service)

ble = BLERadio(board.BLE_CENTRAL)
led = DigitalInOut(board.LED)
led.direction = Direction.OUTPUT

# 连接到HC-05
def connect():
    while not ble.connected:
        print("Scanning...")
        led.value = True
        ble.start_advertising(advertisement)
        connection = ble.connect(ADDR)
        if connection is None:
            continue
        led.value = False
        return connection

connection = connect()

if connection is not None:
    uart = connection[UARTService]
    try:
        while True:
            if uart.in_waiting:
                data = uart.readall()
                print("Received:", data.decode())
                # 发送数据
                uart.write(b"Hello from Raspberry Pi Pico!")
    except KeyboardInterrupt:
        pass
    finally:
        connection.disconnect()
        ble.stop_advertising()

这个脚本会在Pico上寻找HC-05，一旦找到就建立连接，然后进行数据收发。请注意将ADDR变量替换为你的HC-05的实际地址。