{ "ok": true, "data": { "title": "ZP-0138", "rev_id": 12991, "updated_at": "2023-04-18T07:11:14+00:00", "chunk_count": 11, "chunks": [ { "title": "ZP-0138", "rev_id": 12991, "heading_path": "", "chunk_index": 0, "content": "# ZP-0138", "char_count": 9, "token_estimate": 3 }, { "title": "ZP-0138", "rev_id": 12991, "heading_path": "Aluminum Brick Case", "chunk_index": 1, "content": "
\n\"Zp-0138-7.jpg\"\n
Zp-0138-7.jpg<\/figcaption>\n<\/figure>\n\n- Purchase URL \\[ \\]", "char_count": 329, "token_estimate": 83 }, { "title": "ZP-0138", "rev_id": 12991, "heading_path": "Descriptions", "chunk_index": 2, "content": "It is aluminum Brick Case which is supporting Raspberry Pi 4 model B ONLY. It can protect the Raspberry Pi well and dissipate heat well through adjustable-speed fan.\n\nWe 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.\n\n NOTE: Raspberry Pi 4B is not included in the package, require additional purchase.", "char_count": 593, "token_estimate": 149 }, { "title": "ZP-0138", "rev_id": 12991, "heading_path": "Features", "chunk_index": 3, "content": "- Easy to assemble\n- Acrylic Top Cover\n- Ultra-Quiet Cooling Fan\n- Adjustable Speed (PWM)\n- Precise Positioning\n- Beautiful and Stable\n- Support Raspberry Pi 4 model B Only", "char_count": 186, "token_estimate": 47 }, { "title": "ZP-0138", "rev_id": 12991, "heading_path": "Galley", "chunk_index": 4, "content": "- Product Outlook\n\n\"Zp-0138-7.jpg\"\n\\* Features \"Zp-0138-1new.jpg\"\n\"Zp-013822-2.jpg\"\n\"Zp-0138-3.jpg\"\n\n- Cooling System detials\n\n\"Zp-0138-5.jpg\"\n\\* Pinout of Fan connection \"Zp-0138-6.jpg\"\n\\* Dimentions \"Zp-0138-8.jpg\"", "char_count": 692, "token_estimate": 173 }, { "title": "ZP-0138", "rev_id": 12991, "heading_path": "Package Includes", "chunk_index": 5, "content": "- 1 x Aluminum Brick case\n- 1 x Acrylic Top cover\n- 1 x Aluminum bottom cover\n- 1 x 3510 Ultra-Quiet Cooling Fan\n- 4 x Copper pillar\n- 2 x M2.5 Nut\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": 328, "token_estimate": 82 }, { "title": "ZP-0138", "rev_id": 12991, "heading_path": "How to assemble", "chunk_index": 6, "content": "- 1\\. Fix 3510 Ultra-quiet Cooling Fan as following figure\n- 2\\. Conect fan cable to GPIO Pin:\n\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\n- 3\\. Insert Raspberry Pi 4B and 3510 Ultra-Quiet Cooling Fan into the case, and fix it with M2.5 Flat head screws.\n- 4\\. Fix the aluminum bottom cover to case with M2.5 flat head screws.\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.\n\n\"0138安装1.jpg\"", "char_count": 773, "token_estimate": 201 }, { "title": "ZP-0138", "rev_id": 12991, "heading_path": "How to configure PWM Fan", "chunk_index": 7, "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\"0138Step1.png\"\n\\* 2. Navigate to **4 Performance Options** \"0138Step2.png\"\n\\* and navigate to **P4 Fan** and select YES. \"0138Step3.png\"\n\\* Keep **14** as default. \"0138Step4.png\"\n\\* select yes, input a temperature in degrees should the fan turn on, Recommend setting to **60** degrees. \"0138Step5.png\"\n\\* select yes and reboot your Raspberry Pi. \"0138Step6.png\"\n\"0138Step7.png\"\n\"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, "token_estimate": 298 }, { "title": "ZP-0138", "rev_id": 12991, "heading_path": "How to configure PWM Fan > Demo Code", "chunk_index": 8, "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, "token_estimate": 278 }, { "title": "ZP-0138", "rev_id": 12991, "heading_path": "How to configure PWM Fan > Demo Code", "chunk_index": 9, "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-0138", "rev_id": 12991, "heading_path": "Keywords", "chunk_index": 10, "content": "- Aluminum breck case for Raspberry Pi 4B, aluminum case for raspberry pi 4B, breck case.", "char_count": 91, "token_estimate": 23 } ] } }