{"product_id":"clusterctrl-stack","title":"ClusterCTRL: Stack [Discontinued]","description":"\u003cp\u003eThe ClusterCTRL: Stack (controller and passive backplane) is a simple way to both power and control cooling for a stack of 5 \u003ca href=\"https:\/\/thepihut.com\/products\/raspberry-pi-4-model-b\" target=\"_blank\"\u003eRaspberry Pi boards\u003c\/a\u003e (not included).\u003c\/p\u003e\n\u003cp\u003eThe entire stack of Raspberry Pi can be powered by a single 12-24V PSU with a 5.5mm jack and 2.1\/2.5mm pin (not included - see notes below on power) via the onboard 10A 5.1V DC-DC regulator - providing 2A per Raspberry Pi.\u003c\/p\u003e\n\u003cp\u003eThe main board includes a 6-pin header for monitoring each Raspberry Pi, and includes connectors for 2 independently controlled fans. The USB-A connector is intended for 5V power only to run a low-power switch or similar.\u003c\/p\u003e\n\u003cp\u003eConnecting the ClusterCTRL Controller (via the Micro USB connector) you can use the \"clusterctrl\" tool which allows the following:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eControl power for each Raspberry Pi individually\u003c\/li\u003e\n\u003cli\u003eGanged FAN On\/Off (when \"off\" the individual fans are still controlled via GPIO as above)\u003c\/li\u003e\n\u003cli\u003eMeasures both the voltage supplied to the Raspberry Pi and the 12-24V input voltage\u003c\/li\u003e\n\u003cli\u003eConfigure power-on state (each individual Pi can be set on\/off by default)\u003c\/li\u003e\n\u003cli\u003eA single Controller Pi can control many ClusterCTRL devices (Stack\/Triple\/Single\/etc)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eController\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePowered by 12-24V PSU.\u003c\/li\u003e\n\u003cli\u003e20 pin header for Power (2x5V and 2xGND for each Pi).\u003c\/li\u003e\n\u003cli\u003e6 pin header for monitoring of Raspberry Pi (1 GPIO pin per Pi).\u003c\/li\u003e\n\u003cli\u003eOnboard 10 Amp 5.1V DC-DC regulator (2 Amp allowance per Pi).\u003c\/li\u003e\n\u003cli\u003eConnectors for 2 independently controlled fans.\u003c\/li\u003e\n\u003cli\u003eMicro USB for ClusterCTRL allows controlling individual Pi power, fan, auto power on, voltages, etc.\u003c\/li\u003e\n\u003cli\u003eUSB Type-A connector 5V (ONLY) power output, can be used to power a 5V switch for example.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePassive backplane\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eConnects between the ClusterCTRL Stack Controller to each Raspberry Pi.\u003c\/li\u003e\n\u003cli\u003e20+6 pin connectors for ClusterCTRL Stack Controller.\u003c\/li\u003e\n\u003cli\u003e20 pin connector for each of the five regular-sized Raspberry Pi (B+\/2\/3\/3+\/4).\u003c\/li\u003e\n\u003cli\u003eConnects GPIO BCM18 of each Raspberry Pi to the Controllers monitor header.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eUsage\u003c\/h2\u003e\n\u003cp\u003eAs supplied the Controller can be used standalone - once power is applied to the ClusterCTRL Stack each Raspberry Pi will be powered on in 1-second intervals. The GPIO (BCM18) pin from each Raspberry Pi is monitored, when this is set high the corresponding FAN is turned on (P1\/P2 = FAN1 and P3\/P4\/P5 = FAN2) as required to cool the Pi.\u003c\/p\u003e\n\u003cp\u003eYou can use any software on the Raspberry Pi nodes (Raspbian\/Ubuntu\/etc.). To control the nodes you will need to \u003ca href=\"https:\/\/8086.support\/?action=faq\u0026amp;cat=23\u0026amp;id=120\u0026amp;artlang=en\" target=\"_blank\"\u003einstall the clusterctrl software\u003c\/a\u003e. Currently, this needs to be manually installed - see the \u003ca href=\"https:\/\/8086.support\/?action=faq\u0026amp;cat=23\u0026amp;id=120\u0026amp;artlang=en\" target=\"_blank\"\u003eFAQ entry\u003c\/a\u003e for manual installation steps.\u003c\/p\u003e\n\u003cp\u003eTo enable the fans to be turned on\/off automatically when a Raspberry Pi requires cooling add the following to \/boot\/config.txt on each Raspberry Pi (in the example below it will turn the FAN on at 75C and off at 65C).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003edtoverlay=gpio-fan,gpiopin=18,temp=75000\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eConnecting the ClusterCTRL Controller (via the Micro USB connector) you can use our \"clusterctrl\" tool which allows you to.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eControl power for each Raspberry Pi individually.\u003c\/li\u003e\n\u003cli\u003eGanged FAN On\/Off (when \"off\" the individual fans are still controlled via GPIO as above).\u003c\/li\u003e\n\u003cli\u003eMeasures both the voltage supplied to the Raspberry Pi and the 12-24V input voltage.\u003c\/li\u003e\n\u003cli\u003eConfigure power-on state (each individual Pi can be set on\/off by default).\u003c\/li\u003e\n\u003cli\u003eA single Controller Pi can control many ClusterCTRL devices (Stack\/Triple\/Single\/etc).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e8086 recommend using two 70mm fans for cooling, one for the ClusterCTRL Stack Controller+P1+P2 (FAN1) and the other for P3\/P4\/P5 (FAN2). However, users may wish to utilise different fan options.\u003c\/p\u003e\n\u003ch2\u003eWhat comes with the ClusterCTRL Stack\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eClusterCTRL Stack Backplane\u003c\/li\u003e\n\u003cli\u003eClusterCTRL Stack Controller\u003c\/li\u003e\n\u003cli\u003e4x M2.5 12 mm F-F spacer\u003c\/li\u003e\n\u003cli\u003e24x M2.5 25 mm M-F spacer\u003c\/li\u003e\n\u003cli\u003e8x M2.5 6 mm screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote\u003c\/strong\u003e: \u003ca href=\"https:\/\/thepihut.com\/products\/raspberry-pi-4-model-b\" target=\"_blank\"\u003eRaspberry Pi boards\u003c\/a\u003e and \u003ca href=\"https:\/\/thepihut.com\/products\/4-piece-raspberry-pi-4-heatsink-set\"\u003eheatsinks\u003c\/a\u003e not included.\u003c\/p\u003e\n\u003ch2\u003eWhat do I need to use the ClusterCTRL Stack?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e12-24 Volt Power Supply with 5.5 mm 2.1\/2.5mm barrel jack (60 Watt recommended minimum)\u003c\/li\u003e\n\u003cli\u003e5x \u003ca href=\"https:\/\/thepihut.com\/products\/raspberry-pi-4-model-b\" target=\"_blank\"\u003eRaspberry Pi\u003c\/a\u003e (Pi2\/3\/3+\/4)\u003c\/li\u003e\n\u003cli\u003e2x 5V fans and \u003ca href=\"https:\/\/thepihut.com\/products\/4-piece-raspberry-pi-4-heatsink-set\" target=\"_blank\"\u003eheatsinks\u003c\/a\u003e (optional)\u003c\/li\u003e\n\u003cli\u003eController Pi (can be one of the stack) (optional)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/thepihut.com\/products\/usb-to-micro-usb-cable-0-5m\" target=\"_blank\"\u003eUSB Cable to connect to controller\u003c\/a\u003e (optional)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/thepihut.com\/products\/tp-link-5-port-gigabit-network-switch\" target=\"_blank\"\u003eGigabit Ethernet Switch\u003c\/a\u003e (optional)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen choosing a power supply for the Stack searching for laptop\/monitor power supplies with an output of 12\/19 Volts and more than 60 Watts of power should help (ensuring they're 5.5mm jack with 2.1\/2.5mm pin).\u003c\/p\u003e\n\u003cp\u003eDue to the backplane being a fixed size you can only add an additional board under the last Pi.\u003c\/p\u003e\n\u003ch2\u003eCases\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/pinshape.com\/items\/98243-3d-printed-clusterctrl-stack-frame-case\" target=\"_blank\"\u003eSTL files for a 3D printed case are available on Pinshape\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"8086","offers":[{"title":"Default Title","offer_id":39576904171715,"sku":"103406","price":74.6,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0176\/3274\/products\/clusterctrl-stack-8086-103406-28312261329091.jpg?v=1646604372","url":"https:\/\/thepihut.com\/products\/clusterctrl-stack","provider":"The Pi Hut","version":"1.0","type":"link"}