{"product_id":"adalogger-featherwing-rtc-sd-add-on-for-all-feather-boards","title":"Adalogger FeatherWing - RTC + SD Add-on For All Feather Boards","description":"\u003cp\u003eThis is the \u003cb\u003eAdalogger FeatherWing\u003c\/b\u003e: it adds both a battery-backed Real Time Clock and micro SD card storage to any Feather main board.\u003c\/p\u003e\n\u003cp\u003eUsing our \u003ca rel=\"noopener noreferrer\" href=\"https:\/\/shop.pimoroni.com\/products\/feather-stacking-headers-12-pin-and-16-pin-female-headers\" target=\"_blank\"\u003eFeather Stacking Headers\u003c\/a\u003e or \u003ca rel=\"noopener noreferrer\" href=\"https:\/\/shop.pimoroni.com\/products\/feather-header-kit-12-pin-and-16-pin-female-header-set\" target=\"_blank\"\u003eFeather Female Headers\u003c\/a\u003e you can connect a FeatherWing on top of your Feather board and let the board take flight!\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/shop.pimoroni.com\/search?type=product\u0026amp;q=feather\" target=\"_blank\"\u003eCheck out our range of Feather boards here.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eThis FeatherWing will make it real easy to add datalogging to any of our existing Feathers. You get both an I2C real time clock (PCF8523) with 32KHz crystal and battery backup, and a microSD socket that connects to the SPI port pins (+ extra pin for CS). Tested and works great with any of our Feathers, based on ATmega32u4, ATSAMD21, or ESP8266.\u003c\/p\u003e\n\u003cp\u003eWe recommend the Arduino's default SD library to talk to the microSD card socket. On ESP8266, the SD CS pin is on GPIO 15, on Atmel M0 or 32u4 it's on GPIO 10. You can cut the trace to the default pin and change this to any pin. To use the RTC, \u003ca rel=\"noopener noreferrer\" href=\"https:\/\/github.com\/adafruit\/RTClib\" target=\"_blank\"\u003euse Adafrutis RTClib library\u003c\/a\u003e. \u003ca rel=\"noopener noreferrer\" href=\"https:\/\/shop.pimoroni.com\/products\/ds3231-precision-rtc-featherwing-rtc-add-on-for-feather-boards\" target=\"_blank\"\u003eIf you need a precision RTC, check out the DS3231 FeatherWing\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes not come with a micro SD card. A CR1220 coin cell is required to use the RTC battery-backup capabilities!\u003c\/strong\u003e We don't include one by default, to make shipping easier for those abroad, but you can use any CR1220 you have handy. If you're not using the RTC part of the featherwing, a battery is not required.\u003c\/p\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":16853702663,"sku":"ADA2922","price":8.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/2922.jpg?v=1456852547","url":"https:\/\/shop.pimoroni.com\/en-eu\/products\/adalogger-featherwing-rtc-sd-add-on-for-all-feather-boards","provider":"Pimoroni Ltd","version":"1.0","type":"link"}