import sensor
import image
import lcd
import time
import KPU as kpu
from fpioa_manager import *
from Maix import GPIO
# 设置麦克风阵列
fm.register(board_info.MIC_ARRAY_DATA, fm.fpioa.I2S0_IN_D0, force=True)
fm.register(board_info.MIC_ARRAY_WS, fm.fpioa.I2S0_WS, force=True)
fm.register(board_info.MIC_ARRAY_BCK, fm.fpioa.I2S0_SCLK, force=True)
# 初始化LCD
lcd.init()
lcd.rotation(2)
# 初始化麦克风阵列
mic_dev = I2S(I2S.DEVICE_0)
# 设置麦克风阵列参数
sample_rate = 32000
record_time = 5000
samples_per_record = sample_rate * record_time // 1000
mic_dev.sample_rate(sample_rate)
# 初始化KPU
lcd.draw_string(100, 100, "Initializing KPU...")
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
sensor.set_vflip(1)
sensor.run(1)
sensor.skip_frames(30)
lcd.draw_string(100, 100, "Loading Model...")
task = kpu.load(0x300000)
# 循环读取麦克风数据并进行声源定位
while True:
try:
lcd.draw_string(100, 150, "Recording...")
mic_dev.rec(samples_per_record)
lcd.draw_string(100, 150, "Processing...")
pcm_data = mic_dev.record_read(samples_per_record)
pcm_data = bytes([int(i / 256) for i in pcm_data])
a = kpu.forward(task, pcm_data)
output = kpu.get_output(task, 0)
max_index = output.index(max(output))
lcd.draw_string(100, 200, "Sound from direction: %d" % max_index)
except Exception as e:
print(e)
lcd.draw_string(100, 200, "Error occurred!")
continue
# 释放资源
mic_dev.deinit()文章来源：https://www.toymoban.com/news/detail-629969.html
kpu.deinit(task)文章来源地址https://www.toymoban.com/news/detail-629969.html
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