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    "data": {
        "title": "EP-0163",
        "rev_id": 13013,
        "updated_at": "2023-04-18T07:38:53+00:00",
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            {
                "title": "EP-0163",
                "rev_id": 13013,
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                "chunk_index": 0,
                "content": "# EP-0163",
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            {
                "title": "EP-0163",
                "rev_id": 13013,
                "heading_path": "Ultra Thin Ice Tower Cooler for Raspberry Pi 4B",
                "chunk_index": 1,
                "content": "<figure>\n<img src=\"Ultrathin_main.jpg\" title=\"Ultrathin_main.jpg\" width=\"320\" alt=\"Ultrathin_main.jpg\" \/>\n<figcaption aria-hidden=\"true\">Ultrathin_main.jpg<\/figcaption>\n<\/figure>\n\n-   Purchase URL \\[ <https:\/\/52pi.com\/products\/52pi-ultra-thin-ice-tower-cooler-cooling-fan-for-raspberry-pi-4-model-b-cpu-fan> \\]",
                "char_count": 310,
                "token_estimate": 78
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            {
                "title": "EP-0163",
                "rev_id": 13013,
                "heading_path": "Description",
                "chunk_index": 2,
                "content": "This is an ultra-thin ice tower cooler that only supports Raspberry Pi 4B. It includes ultra-thin fans and supports fan speed regulation. The speed can be controlled by programming the GPIO pins of the Raspberry Pi, and the heat sink is ultra-thin.",
                "char_count": 248,
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            {
                "title": "EP-0163",
                "rev_id": 13013,
                "heading_path": "Features",
                "chunk_index": 3,
                "content": "-   Ultra Thin\n-   Support fan speed regultion\n-   Support Raspberry Pi 4B ONLY\n-   Good Heat dissipation effect\n-   4010 Fan with PWM adjustable speed feature",
                "char_count": 159,
                "token_estimate": 40
            },
            {
                "title": "EP-0163",
                "rev_id": 13013,
                "heading_path": "Gallery",
                "chunk_index": 4,
                "content": "NOTE: Raspberry Pi 4B is not included in the package, need additional purchase.\n\n-   Product Outlook",
                "char_count": 100,
                "token_estimate": 25
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            {
                "title": "EP-0163",
                "rev_id": 13013,
                "heading_path": "Gallery",
                "chunk_index": 5,
                "content": "|                                                                                                                       |                                                                                                                       |                                                                                                                       |\n|-----------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------|\n| <figure>\n <img src=\"Ultrathin_ice_tower01.jpg\" title=\"Ultrathin_ice_tower01.jpg\" width=\"320\" alt=\"Ultrathin_ice_tower01.jpg\" \/>\n <figcaption aria-hidden=\"true\">Ultrathin_ice_tower01.jpg<\/figcaption>\n <\/figure>                                                                                                              | <figure>",
                "char_count": 1055,
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            {
                "title": "EP-0163",
                "rev_id": 13013,
                "heading_path": "Gallery",
                "chunk_index": 6,
                "content": "<img src=\"Ultrathin_ice_tower02.jpg\" title=\"Ultrathin_ice_tower02.jpg\" width=\"320\" alt=\"Ultrathin_ice_tower02.jpg\" \/>\n                                                                                                                         <figcaption aria-hidden=\"true\">Ultrathin_ice_tower02.jpg<\/figcaption>\n                                                                                                                         <\/figure>                                                                                                              | <figure>\n                                                                                                                                                                                                                                                 <img src=\"Ultrathin_ice_tower03.jpg\" title=\"Ultrathin_ice_tower03.jpg\" width=\"320\" alt=\"Ultrathin_ice_tower03.jpg\" \/>",
                "char_count": 918,
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            },
            {
                "title": "EP-0163",
                "rev_id": 13013,
                "heading_path": "Gallery",
                "chunk_index": 7,
                "content": "<figcaption aria-hidden=\"true\">Ultrathin_ice_tower03.jpg<\/figcaption>\n                                                                                                                                                                                                                                                 <\/figure>                                                                                                              |",
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            {
                "title": "EP-0163",
                "rev_id": 13013,
                "heading_path": "Gallery",
                "chunk_index": 8,
                "content": "-   Compare with other products\n\nCompare with other products from Dimention <img src=\"Ep-0163-12.jpg\" title=\"Ep-0163-12.jpg\" width=\"800\" alt=\"Ep-0163-12.jpg\" \/>\n\\* Structure of the heat dissipation system <img src=\"Ep-0163-10.jpg\" title=\"Ep-0163-10.jpg\" width=\"800\" alt=\"Ep-0163-10.jpg\" \/>\n\\* Benchmark by using sysbench on Raspberry Pi 64Bit OS. <img src=\"Ep-0163-11.jpg\" title=\"Ep-0163-11.jpg\" width=\"800\" alt=\"Ep-0163-11.jpg\" \/>\n\\* Heat Dissipation <img src=\"Ep-0163-9(1).jpg\" title=\"Ep-0163-9(1).jpg\" width=\"800\" alt=\"Ep-0163-9(1).jpg\" \/>\n\\* Fast Cooling Effect <img src=\"Fast_cooling_effect.jpg\" title=\"Fast_cooling_effect.jpg\" width=\"800\" alt=\"Fast_cooling_effect.jpg\" \/>\n\\* Details <img src=\"Ultrathin_ice_tower04.jpg\" title=\"Ultrathin_ice_tower04.jpg\" width=\"800\" alt=\"Ultrathin_ice_tower04.jpg\" \/>\n\\* Other side <img src=\"Ultrathin_ice_tower05.jpg\" title=\"Ultrathin_ice_tower05.jpg\" width=\"800\" alt=\"Ultrathin_ice_tower05.jpg\" \/>\n\\* Wiring <img src=\"Ultrathin_icetower_assembling.jpg\" title=\"Ultrathin_icetower_assembling.jpg\" width=\"800\" alt=\"Ultrathin_icetower_assembling.jpg\" \/>",
                "char_count": 1090,
                "token_estimate": 273
            },
            {
                "title": "EP-0163",
                "rev_id": 13013,
                "heading_path": "How to assemble",
                "chunk_index": 9,
                "content": "-   1\\. Fix the bracket to ICE tower cooler with M2.5 screws.\n-   2\\. Peel off the protect film of thermal pad and paste it on top of CPU and Memory chip.\n-   3\\. Fix the copper pillar to the bracket.\n-   4\\. Fix ICE tower cooler to Raspberry Pi 4B with M2.5 nuts.\n-   5\\. Connect Red wire to Raspberry Pi's GPIO on 5V\n-   6\\. Connect Black wire to Raspberry Pi's GPIO on GND\n-   7\\. Connect Blue wire to Raspberry Pi's GPIO on TXD\n\n<img src=\"Ep-0163-14.jpg\" title=\"Ep-0163-14.jpg\" width=\"800\" alt=\"Ep-0163-14.jpg\" \/>",
                "char_count": 517,
                "token_estimate": 130
            },
            {
                "title": "EP-0163",
                "rev_id": 13013,
                "heading_path": "Package Includes",
                "chunk_index": 10,
                "content": "-   1 x Ultra Thin ICE Tower Cooler\n-   4 x M2.5 Screws\n-   4 x Copper Pillar\n-   1 x Screw driver\n-   4 x Thermal Pad\n-   1 x Acrylic panel\n\n<img src=\"Ultrathin_list.jpg\" title=\"Ultrathin_list.jpg\" width=\"800\" alt=\"Ultrathin_list.jpg\" \/>",
                "char_count": 238,
                "token_estimate": 60
            },
            {
                "title": "EP-0163",
                "rev_id": 13013,
                "heading_path": "How to control fan speed",
                "chunk_index": 11,
                "content": "-   Default OS: Raspberry Pi OS\n-   GPIO 14 is connected to fan pwm controller pin, you can just testing by using this code and modify it as you well.\n-   Create a file named fan_control.py\n-   Copy and paste following code\n\n<!-- -->\n\n    import RPi.GPIO as GPIO\n    import time\n    import subprocess as sp\n\n    # initializing GPIO, setting mode to BOARD.\n\n    # Default pin of fan is physical pin 8, GPIO14\n\n    Fan = 8\n    GPIO.setmode(GPIO.BOARD)\n    GPIO.setup(Fan, GPIO.OUT)\n\n    p = GPIO.PWM(Fan, 50)\n    p.start(0)\n\n    try:\n        while True:\n            temp = sp.getoutput(\"vcgencmd measure_temp|egrep -o '[0-9]*\\.[0-9]*'\")\n            # print(temp)\n\n            if float(temp) < 48.0:\n                p.ChangeDutyCycle(0)\n            elif float(temp) > 48.0 and float(temp) < 60.0:\n                p.ChangeDutyCycle(100)\n                time.sleep(0.1)\n            elif float(temp) > 60.0:\n                p.ChangeDutyCycle(100)\n                time.sleep(0.1)\n\n    except KeyboardInterrupt:\n        pass\n    p.stop()\n    GPIO.cleanup()\n\n-   Save it and test it\n\n<!-- -->\n\n    python3  fan_control.py",
                "char_count": 1112,
                "token_estimate": 278
            },
            {
                "title": "EP-0163",
                "rev_id": 13013,
                "heading_path": "Keywords",
                "chunk_index": 12,
                "content": "-   ICE tower cooler, ultra thin ice tower cooler, ice tower for raspberry pi 4B",
                "char_count": 80,
                "token_estimate": 20
            }
        ]
    }
}