Adafruit PCF8523 Real Time Clock by lady ada published October 29, 2017, last edited October 29, 2017 posted in Adafruit Products CircuitPython Breakout Boards/ Clocks Save New Favorite × Please sign in to include this guide in your list of favorites. You will be redirected back to this guide once you sign in, and can then save this guide as one of your favorites. Download Overview Pinouts Assembly Real Time Clock RTC with Arduino RTC with CircuitPython Python Docs Downloads Single page Feedback? Corrections? Featured Products view all Adafruit PCF8523 Real Time Clock Breakout Board $4.95 Add to Cart Adafruit PCF8523 Real Time Clock Assembled Breakout Board $6.95 Add to Cart Adafruit PiRTC - PCF8523 Real Time Clock for Raspberry Pi $7.50 Add to Cart CR1220 12mm Diameter - 3V Lithium Coin Cell Battery $0.95 Add to Cart 37 Beginner Product guide Python Docs Page last edited August 11, 2018 Text editor powered by tinymce. RTC with CircuitPython Downloads