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96 lines
2.5 KiB
Python
96 lines
2.5 KiB
Python
# This work is licensed under the MIT license.
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# Copyright (c) 2013-2023 OpenMV LLC. All rights reserved.
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# https://github.com/openmv/openmv/blob/master/LICENSE
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#
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# MJPEG Streaming with FIR
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#
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# This example shows off how to do MJPEG streaming to a FIREFOX webrowser
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# (IE and Chrome do not work). Just input your network SSID and KEY and then
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# connect to the IP address/port printed out from ifconfig.
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import sensor
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import network
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import usocket
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import fir
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SSID = "" # Network SSID
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KEY = "" # Network key
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HOST = "" # Use first available interface
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PORT = 8000 # Arbitrary non-privileged port
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# Reset sensor
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sensor.reset()
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sensor.set_framesize(sensor.QQVGA)
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sensor.set_pixformat(sensor.RGB565)
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# Initialize the thermal sensor
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fir.init()
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# Init wlan module and connect to network
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print("Trying to connect... (may take a while)...")
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wlan = network.WINC()
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wlan.connect(SSID, key=KEY, security=wlan.WPA_PSK)
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# We should have a valid IP now via DHCP
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print(wlan.ifconfig())
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# Create server socket
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s = usocket.socket(usocket.AF_INET, usocket.SOCK_STREAM)
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# Bind and listen
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s.bind((HOST, PORT))
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s.listen(5)
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# Set server socket to blocking
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s.setblocking(True)
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# Set timeout to 1s
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s.settimeout(1.0)
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print("Waiting for connections..")
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client, addr = s.accept()
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print("Connected to " + addr[0] + ":" + str(addr[1]))
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# Read request from client
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data = client.recv(1024)
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# Should parse client request here
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# Send multipart header
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client.send(
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"HTTP/1.1 200 OK\r\n"
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"Server: OpenMV\r\n"
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"Content-Type: multipart/x-mixed-replace;boundary=openmv\r\n"
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"Cache-Control: no-cache\r\n"
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"Pragma: no-cache\r\n\r\n"
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)
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# Start streaming images
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while True:
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image = sensor.snapshot()
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# Capture FIR data
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# ta: Ambient temperature
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# ir: Object temperatures (IR array)
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# to_min: Minimum object temperature
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# to_max: Maximum object temperature
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ta, ir, to_min, to_max = fir.read_ir()
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# Scale the image and belnd it with the framebuffer
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fir.draw_ir(image, ir)
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# Draw ambient, min and max temperatures.
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image.draw_string(0, 0, "Ta: %0.2f" % ta, color=(0xFF, 0x00, 0x00))
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image.draw_string(0, 8, "To min: %0.2f" % to_min, color=(0xFF, 0x00, 0x00))
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image.draw_string(0, 16, "To max: %0.2f" % to_max, color=(0xFF, 0x00, 0x00))
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cimage = image.compressed(quality=90)
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client.sendall(
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"\r\n--openmv\r\n"
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"Content-Type: image/jpeg\r\n"
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"Content-Length:" + str(cimage.size()) + "\r\n\r\n"
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)
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client.sendall(cimage)
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client.close()
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