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    "data": {
        "title": "ZP-0139",
        "rev_id": 13166,
        "updated_at": "2023-05-18T08:38:47+00:00",
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            {
                "title": "ZP-0139",
                "rev_id": 13166,
                "heading_path": "",
                "chunk_index": 0,
                "content": "# ZP-0139",
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            {
                "title": "ZP-0139",
                "rev_id": 13166,
                "heading_path": "Aluminum Case With ICE Tower Cooler For Raspberry Pi 4B",
                "chunk_index": 1,
                "content": "-   Purchase URL \\[ <https:\/\/52pi.com\/products\/raspberry-pi-4-model-b-aluminum-brick-case-black-enlosure-shell-with-4010-low-profile-ice-tower-cooling-fan-for-rpi-4b> \\]",
                "char_count": 169,
                "token_estimate": 43
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            {
                "title": "ZP-0139",
                "rev_id": 13166,
                "heading_path": "Descritions",
                "chunk_index": 2,
                "content": "It is aluminum case with ICE tower cooler for Raspberry Pi 4 model B ONLY. It can protect the Raspberry Pi well and dissipate heat well through adjustable-speed fan. We strongly recommend using the official Raspberry Pi operating system, which can directly configure the fan to adjust the speed according to the CPU temperature through the raspi-config command.\n\nOther operating systems may require you to write software yourself and send PWM signals to the fan through GPIO pins to control fan’s speed.",
                "char_count": 503,
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            {
                "title": "ZP-0139",
                "rev_id": 13166,
                "heading_path": "Features",
                "chunk_index": 3,
                "content": "-   Easy to assemble\n-   Acrylic Top Cover\n-   ICE Tower Cooler\n-   Adjustable Speed Fan\n-   Precise Positioning\n-   Beautiful and Stable\n-   For Raspberry Pi 4 model B Only",
                "char_count": 173,
                "token_estimate": 44
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            {
                "title": "ZP-0139",
                "rev_id": 13166,
                "heading_path": "Gallery",
                "chunk_index": 4,
                "content": "-   Product Outlook\n\n<img src=\"ZP-0139主图.jpg\" title=\"ZP-0139主图.jpg\" width=\"800\" alt=\"ZP-0139主图.jpg\" \/>\n\\* Features <img src=\"Zp-0139-1.jpg\" title=\"Zp-0139-1.jpg\" width=\"800\" alt=\"Zp-0139-1.jpg\" \/>\n[left\\|800px](File:Zp-0139-2.jpg \"wikilink\")\n[left\\|800px](File:Zp-0139-3.jpg \"wikilink\")\n[left\\|800px](File:Zp-0139-4.jpg \"wikilink\")\n[left\\|800px](File:Zp-0139-5.jpg \"wikilink\")\n===Dimension=== <img src=\"Zp-0139-6.jpg\" title=\"Zp-0139-6.jpg\" width=\"800\" alt=\"Zp-0139-6.jpg\" \/>",
                "char_count": 474,
                "token_estimate": 126
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            {
                "title": "ZP-0139",
                "rev_id": 13166,
                "heading_path": "Gallery > Package List",
                "chunk_index": 5,
                "content": "[left\\|800px](File:Zp-0139-7.jpg \"wikilink\")\n===How to assemble=== [left\\|800px](File:Zp-0139-安装1.jpg \"wikilink\")\n[left\\|800px](File:Zp-0139-安装2.jpg \"wikilink\")",
                "char_count": 160,
                "token_estimate": 45
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            {
                "title": "ZP-0139",
                "rev_id": 13166,
                "heading_path": "Package Includes",
                "chunk_index": 6,
                "content": "-   1 x Aluminum case\n-   1 x Acrylic Top cover\n-   1 x Aluminum bottom cover\n-   1 x ICE Tower cooler\n-   2 x ICE Tower bracket\n-   4 x Copper pillar\n-   2 x M2.5 screws for ICE tower brackets\n-   4 x M2.5 Flat head screw\n-   2 x Thermal Pad\n-   1 x hex wrench\n-   4 x Hexagon socket head screw for Top cover\n-   2 x Rubber anti-slipper pad\n-   1 x Instructions",
                "char_count": 362,
                "token_estimate": 91
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            {
                "title": "ZP-0139",
                "rev_id": 13166,
                "heading_path": "How to assemble",
                "chunk_index": 7,
                "content": "-   1\\. Fix the bracket of ICE Tower Cooler as following figure\n-   2\\. After peeling off the protect films on Thermal pad, Paste Thermal pad on Raspberry Pi 4B’s CPU and fix the ICE Tower Cooler with copper pillars.\n-   3\\. Connect fan cable from ice tower cooler to Raspberry Pi on GPIO Pins.\n    -   Connect the red wire from Fan to 5V Pin on Raspberry Pi 4B’s GPIO Pin\n    -   Connect the black wire from fan to GND Pin on Raspberry Pi 4B’s GPIO Pin\n    -   Connect the Blue wire from fan to GPIO14 Pin on Raspberry Pi 4B’s GPIO Pin.\n-   4\\. Insert Raspberry Pi 4B and ICE Tower Cooler into the case.\n-   5\\. Peeling off the protect film from Acrylic Top Cover and fix it with hexagon socket screws.\n-   6\\. Paste the rubber anti-slipper pad on the bottom of the case.",
                "char_count": 772,
                "token_estimate": 193
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            {
                "title": "ZP-0139",
                "rev_id": 13166,
                "heading_path": "How to configure PWM Fan",
                "chunk_index": 8,
                "content": "We are assume that you are using Raspberry Pi OS (Official).\n\n-   1\\. Press Ctrl+ ALT + T or click terminal Icon to open a terminal and typing: “sudo raspi-config”\n\n<img src=\"0138Step1.png\" title=\"0138Step1.png\" width=\"800\" alt=\"0138Step1.png\" \/>\n\\* 2. Navigate to **4 Performance Options** <img src=\"0138Step2.png\" title=\"0138Step2.png\" width=\"800\" alt=\"0138Step2.png\" \/>\n\\* and navigate to **P4 Fan** and select YES. <img src=\"0138Step3.png\" title=\"0138Step3.png\" width=\"800\" alt=\"0138Step3.png\" \/>\n\\* Keep **14** as default. <img src=\"0138Step4.png\" title=\"0138Step4.png\" width=\"800\" alt=\"0138Step4.png\" \/>\n\\* select yes, input a temperature in degrees should the fan turn on, Recommend setting to **60** degrees. <img src=\"0138Step5.png\" title=\"0138Step5.png\" width=\"800\" alt=\"0138Step5.png\" \/>\n\\* select yes and reboot your Raspberry Pi. <img src=\"0138Step6.png\" title=\"0138Step6.png\" width=\"800\" alt=\"0138Step6.png\" \/>\n<img src=\"0138Step7.png\" title=\"0138Step7.png\" width=\"800\" alt=\"0138Step7.png\" \/>\n<img src=\"0138Step8.png\" title=\"0138Step8.png\" width=\"800\" alt=\"0138Step8.png\" \/>\n\\* If you are using other OS on Raspberry Pi, please refer to how to generate PWM signal in your OS.",
                "char_count": 1189,
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            {
                "title": "ZP-0139",
                "rev_id": 13166,
                "heading_path": "How to configure PWM Fan > Demo Code",
                "chunk_index": 9,
                "content": "-   Here is a demo code, it will help you to control the fan speed according to the temperature of CPU.\n\n<!-- -->\n\n#File Name: fan_control.py\n    #!\/usr\/bin\/python3\n\nimport RPi.GPIO as GPIO\n    import time\n    import subprocess\n\nGPIO.setmode(GPIO.BCM)\n    GPIO.setwarnings(False)\n    GPIO.setup(14, GPIO.OUT)\n    pwm = GPIO.PWM(14,100)\n\nprint(\"\\nPress Ctrl+C to quit \\n\")\n    dc = 0\n    pwm.start(dc)\n\ntry:\n        while True:\n            temp = subprocess.getoutput(\"vcgencmd measure_temp|sed 's\/[^0-9.]\/\/g'\")\n            if round(float(temp)) >= 45:\n                dc = 100\n                pwm.ChangeDutyCycle(dc)\n                print(\"CPU Temp:\",float(temp),\" Fan duty cycle:\",dc)\n                time.sleep(180.0)\n            if round(float(temp)) >= 40:\n                dc = 85\n                pwm.ChangeDutyCycle(dc)\n                print(\"CPU Temp:\",float(temp),\" Fan duty cycle:\",dc)\n                time.sleep(120.0)\n            else:\n                dc = 70\n                pwm.ChangeDutyCycle(dc)\n                print(\"CPU Temp:\",float(temp),\" Fan duty cycle:\",dc)\n                time.sleep(60.00)",
                "char_count": 1112,
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            {
                "title": "ZP-0139",
                "rev_id": 13166,
                "heading_path": "How to configure PWM Fan > Demo Code",
                "chunk_index": 10,
                "content": "except KeyboardInterrupt:\n        pwm.stop()\n        GPIO.cleanup()\n    print(\"Ctrl + C pressed -- Ending program\")\n\n-   Save it and execute it in a terminal:\n\n<!-- -->\n\npython3 fan_control.py",
                "char_count": 192,
                "token_estimate": 48
            },
            {
                "title": "ZP-0139",
                "rev_id": 13166,
                "heading_path": "Keywords",
                "chunk_index": 11,
                "content": "-   Aluminum Breck case with Ice Tower Cooler for Raspberry Pi 4B, ICE tower cooler case, Raspberry Pi 4B aluminum case.",
                "char_count": 120,
                "token_estimate": 30
            }
        ]
    }
}