SKU: 17234798136

Adafruit PiRTC - PCF8523 Real Time Clock for Raspberry Pi 3386

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Description

Adafruit PiRTC - PCF8523 Real Time Clock for Raspberry Pi 3386This is a great battery backed real time clock (RTC) that allows your Raspberry Pi project to keep track of time if the power is lost. Perfect for data logging, clock building, time stamping, timers and alarms, etc. Equipped with PCF8523 RTC, it works great with the Raspberry Pi and has native kernel support. Works perfectly with any Raspberry Pi (or similar single board linux computer) including the Pi 1, Pi 2, Pi 3, Pi Zero, A+, B+, Pi 4, etc. Fully


This is a great battery-backed real time clock (RTC) that allows your Raspberry Pi project to keep track of time if the power is lost. Perfect for data-logging, clock-building, time-stamping, timers and alarms, etc. Equipped with PCF8523 RTC, it works great with the Raspberry Pi and has native kernel support.

Works perfectly with any Raspberry Pi (or similar single board linux computer) including the Pi 1, Pi 2, Pi 3, Pi Zero, A+, B+, Pi 4, etc.

  • Fully assembled & tested PCB plugs directly into your Pi's GPIO pins - No soldering required!
  • Will keep time for 5 years or more

Note: This product does not come with a CR1220 coin cell battery. We recommend you purchase a coin cell battery to use with this product.

The PCF8523 is simple and inexpensive but not a high precision device. It may lose or gain a second or two per day. For a high-precision, temperature compensated alternative, please check out the DS3231 precision RTC.

For setting up your Raspberry Pi to use the PiRTC, check out our detailed tutorial!

 

Technical Details

Product Dimensions: 21.0mm x 20.0mm x 12.0mm / 0.8" x 0.8" x 0.5"

Product Weight: 2.2g / 0.1oz

 

[Description provided by Adafruit]

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SKU: 17234798136

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Val
Charlottesville, US
★★★★★ 5
great
Size: 7 Fl Oz (Pack of 1), Style: SPF 50
works great on pale skin! doesn’t leave white residue
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Reviewed in the United States on June 3, 2026
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CindyReg
Grantham, US
★★★★★ 5
Perfect size and amount for family travel
Size: 3 Fl Oz (Pack of 6), Style: SPF 50
My usual brand raised its prices, leaving me in a bind to find a cheaper alternative that works well and is suitable for our family trips. I stumbled upon this brand and decided to give it a try. The travel-sized multi-pack is priced reasonably, and I received it promptly. I’ve decided to make this brand my go-to for travel products.
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Reviewed in the United States on May 23, 2026
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Chris R
Cuba, US
★★★★★ 5
WWI survivor tries to rebuild his life as a mystery writing detective, twisty, fun, interesting!
Format: Kindle
Marius Quin is a complicated man, who does not take himself too seriously. Sent off to WWI at 18, leaving behind the woman he still loves, he survived the horrors of the trenches. After the war he spent a few years in Europe trying to recover before returning to England and becoming a mystery writer. He still has some rough edges, but he is quick witted, curious and when he has the chance to team up with the love of his life, Lady Bella, to look into a murder, he jumps at the chance to spend time with her and solve the mystery. The plots in the books so far have all been very interesting and twisty, with detailed historical settings and interesting supporting characters. Add the underlying draw for Marius to be with Bella, his best friend, whom he shattered by leaving and disappearing for years instead of marrying her. Throw in his post war PTSD and his drive to do the right thing, and you have a great read in every book!
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Reviewed in the United States on December 9, 2025
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Adalai
Charlottesville, US
★★★★★ 4
Slightly torn but invested for what's next
Format: Paperback
This is my first Benedict Brown book. I don't know what it was that it was difficult for me to "get into" this book. It almost felt dragged out in some parts instead of getting to the point. And other times it felt like the author was trying too hard, if that makes sense. Each time I picked it up, it took a bit to warm up to it then I couldn't put it down. Then again, I'd stop and have to start that process all over again and I have no idea why. It is funny in parts. Definitely a cozy mystery, none of the blood and gore. I did enjoy the twist, although it was in the back of my mind from the onset. I wouldn't say I won't read the next one, sometimes the first book in a series is not always the best....oddly I've found myself endeared to Marius and feel invested in knowing what adventure he'll face next!
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Reviewed in the United States on February 16, 2026
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Jake's mom
Lake Worth, US
★★★★★ 5
Great new 1920's British Mystery Series
Format: Kindle
This is a 1920’s British mystery along the lines of Agatha Christie’s classic novels. It is the first book in the series and features a mystery writer – Marius Quin. The book begins with Quin having successfully published his first novel, but having problems meeting his publisher’s demand for a second. Depressed when he leaves his publisher’s office, he accidentally meets an old love of his, Bella, a woman he had wanted to marry ten years before but, because he was leaving to fight in WWI, he didn’t propose. It is Bella who invites him to a New Year’s Eve weekend party at Everham Hall, home of a famous film actor. During the weekend, one of their party is killed and so begins the hunt for the murderer, with Marius and Bella investigating. There are plot twists and turns until the denouement when the killer is revealed. I really like both of the main characters (Marius Quin and Bella), and I’m a fan of that time period and of country manor mysteries. I’ve enjoyed Benedict Brown's Lord Edgington novels and find this new series equally appealing.
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Reviewed in the United States on November 5, 2023

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