{"title":"Adalogger FeatherWing - RTC + SD Add-on For All Feather Boards","handle":"adalogger-featherwing-rtc-sd-add-on-for-all-feather-boards","url":"/products/adalogger-featherwing-rtc-sd-add-on-for-all-feather-boards","description":"Add datalogging capability to any Feather board with the Adalogger FeatherWing. This add-on combines a battery-backed real-time clock (PCF8523) with a microSD card socket, giving your project accurate timestamps and local data storage in one compact wing.\n\nThe RTC communicates over I2C with a 32 KHz crystal for reliable timekeeping, while the microSD socket connects via SPI for fast data read/write. Tested and compatible with all Adafruit Feather boards. Attach it using Feather Stacking Headers to stack multiple FeatherWings together.\n\nKey Features\n\n\nPCF8523 Real-Time Clock – I2C RTC with 32 KHz crystal for accurate timekeeping\n\nBattery Backup – CR1220 coin cell keeps the RTC running when power is removed\n\nMicroSD Card Socket – SPI-connected storage for datalogging and file storage\n\nUniversal Feather Compatibility – Works with all Adafruit Feather main boards\n\nArduino & CircuitPython Support – Libraries and example code available for both platforms\n\n\nIdeal For\n\nEnvironmental and sensor datalogging\nTime-stamped data collection projects\nPortable field recording devices\nAny Feather project needing local storage and accurate time\n\n\nPackage Contents\n\n1× Adalogger FeatherWing (assembled and tested)\n\n\n\nNote: MicroSD card and CR1220 coin cell battery are not included. The battery is only needed for RTC backup. For higher-precision timekeeping, consider the DS3231 Precision RTC FeatherWing.\n\n\nResources\n\nAdafruit Adalogger FeatherWing Learn Guide\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":11020,"title":"Default Title","sku":"AF-2922","price":17.94,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}