{"product_id":"chronopi-10-real-time-clock-ultra-precise-discontinued","title":"ChronoPi 1.0 Real Time Clock (Ultra-Precise) [discontinued]","description":"\u003cp\u003eThe ChronoPi is a real-time clock accessory for your Raspberry Pi (all current models with GPIO headers supported). The RTC \u003cstrong\u003ecomes with\u003c\/strong\u003e the required CR1220 battery.\u003c\/p\u003e\n\u003cp\u003eIf your Raspberry Pi project needs to know the time and date, may be turned on and off frequently, is unable to access internet time servers, the ChronoPi is the perfect solution.\u003c\/p\u003e\n\u003cp\u003eBased on the same super-accurate clock chip as our popular ChronoDot, the ChronoPi is temperature-compensated and keeps time within a few seconds per month over a wide range of temperatures. Other RTC chips may drift several minutes per month, depending on ambient temperature!\u003c\/p\u003e\n\u0026lt;\u0026gt;\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eLithium Battery Shipping:\u003c\/strong\u003e\u003c\/span\u003e Due to courier restrictions, this product can only be shipped within England\/Wales. With this item in your cart your shipping options will be limited and may cost more than our usual rates. Why?\u0026lt;\u0026gt;\n\u003cp\u003eApplications that may benefit from accurate timekeeping include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSecurity cameras or intrusion logging systems\u003c\/li\u003e\n\u003cli\u003ePunch clock systems for work start and stop times\u003c\/li\u003e\n\u003cli\u003eCapturing satellite signals with software-defined radio\u003c\/li\u003e\n\u003cli\u003eRecording television broadcasts\u003c\/li\u003e\n\u003cli\u003eWeather \u0026amp; news display mirror with alarm clock function\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSince the ChronoPi needs to measure the temperature in order to compensate for temperature drift, it can also provide a handy temperature measurement.\u003c\/p\u003e\n\u003cp\u003eOn updated versions of Raspbian, the operating system can automatically read this temperature from the command line. We've also included a bonus LED connected to GPIO4. This provides instant access to a user-controlled LED on your Raspberry Pi...debug your programs and verify GPIO operation without your breadboard and wires.\u003c\/p\u003e\n\u003cp\u003eWe've designed the ChronoPi to not interfere with any Raspberry Pi's LCD connectors, and to provide plenty of room for most aftermarket RPi CPU heatsinks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specification\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eController: Maxim DS3231SN\u003c\/li\u003e\n\u003cli\u003eFunction: Temperature-compensated RTC\u003c\/li\u003e\n\u003cli\u003eAccuracy: ± 3.5ppm at -40C to +85C (~1 minute per year)\u003c\/li\u003e\n\u003cli\u003ePower Supply: 2.3 to 5.5 V DC\u003c\/li\u003e\n\u003cli\u003eCurrent: 200uA (active), 840nA (timekeeping)\u003c\/li\u003e\n\u003cli\u003eDimensions: 23mm x 13.5mm x 12.5mm\u003c\/li\u003e\n\u003cli\u003ePin Spacing: 0.1 inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDownloads\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eChronoPi Documentation\u003c\/p\u003e","brand":"Macetech","offers":[{"title":"Default Title","offer_id":48623969173722,"sku":"fma1789680433774","price":14.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0824\/8318\/3834\/files\/chronopi-10-real-time-clock-ultra-precise-discontinued_1.jpg?v=1789680461","url":"https:\/\/memoryfoamwear.shop\/products\/chronopi-10-real-time-clock-ultra-precise-discontinued","provider":"My Store","version":"1.0","type":"link"}