├── libmlx90640.so
├── README.md
└── mlx90640.py


/libmlx90640.so:
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https://raw.githubusercontent.com/JayeGu/Raspberry-MLX90640/HEAD/libmlx90640.so


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/README.md:
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 1 | 1.open the i2c
 2 | 2.set I2C baudrate on /boot/config.txt file
 3 | sudo nano /boot/config.txt
 4 | 
 5 | add the following in the last line 
 6 | dtparam=i2c1_baudrate=1000000
 7 | 
 8 | 3.reboot raspberrypi
 9 | 
10 | 4.python3 mlx90640.py
11 | 


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/mlx90640.py:
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 1 | from ctypes import *
 2 | import numpy as np
 3 | mlx90640 = cdll.LoadLibrary('./libmlx90640.so')
 4 | import matplotlib.pyplot as plt
 5 | import time
 6 | import smbus
 7 | bus=smbus.SMBus(1)
 8 | data = bus.read_word_data(0x33,0x800D)
 9 | bus.write_word_data(0x33,0x800D,data|0x0380)  #设置高帧率模式
10 | # 
11 | # mlx90640 will output 32*24 temperature array with chess mode
12 | #
13 | temp=(c_float*768)()
14 | ptemp=pointer(temp)
15 | mlx90640.get_mlx90640_temp(ptemp)
16 | time.sleep(1)
17 | mlx90640.get_mlx90640_temp(ptemp)
18 | plt.figure(1)
19 | while True:
20 |     mlx90640.get_mlx90640_temp(ptemp)
21 |     img = (temp-np.min(temp))/(np.max(temp)-np.min(temp))*255  #归一化
22 |     img.resize(24,32)   #将一维数组转化为二维数组，便于转化为图片
23 |     #img = img.astype(np.uint8)  #opencv处理的话就要
24 |     plt.clf()
25 |     plt.imshow(img,cmap='jet')  # jet/hsv/ranbow/gunplot等颜色模式可以选择，具体见网址https://blog.csdn.net/lly1122334/article/details/88535217
26 |     plt.text(16,12,str(round(temp[383],2))+'°C')  #显示图像中心的物体温度
27 |     plt.pause(0.001)


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