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BREAKOUT BOARDS

CLOCKS

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Adafruit PCF8523 Real Time Clock

Tick tock, got a clock?

This is a great battery-backed real time clock (RTC) that allows your microcontroller project to keep track of time even if it is reprogrammed, or if the power is lost. Perfect for datalogging, clock-building, time stamping, timers and alarms, etc. Equipped with PCF8523 RTC - it can run from 3.3V or 5V power & logic!

Metro Minimalist Clock

What time is it? Metro Mini time! Build this stylish, minimalist clock.

It's a clock. Made of love. And a Metro mini, a realtime clock module, and a 7-segment display backpack.

DS3231 Precision RTC FeatherWing

A clockwork FeatherWing

This is the DS3231 Precision RTC FeatherWing: it adds an extremely accurate I2C-integrated Real Time Clock (RTC) with a Temperature Compensated Crystal Oscillator (TCXO) to any Feather main board. This RTC is the most precise you can get in a small, low power package.

Adafruit DS3231 Precision RTC Breakout

Repent and temperature-compensate your oscillator, said the tick-tock man!

The datasheet for the DS3231 explains that this part is an "Extremely Accurate I²C-Integrated RTC/TCXO/Crystal". And, hey, it does exactly what it says on the tin! This Real Time Clock (RTC) is the most precise you can get in a small, low power package.

Adafruit Si5351 Clock Generator Breakout

Generate ALL the frequencies!

Never hunt around for another crystal again, with the Si5351A clock generator breakout from Adafruit! This chip has a precision 25MHz crystal reference and internal PLL and dividers so it can generate just about any frequency, from <8KHz up to 150+ MHz.

NeoPixel 60 Ring Wall Clock

A simple clock using the NeoPixel 60 Ring

Create your own colorful ring of time using a NeoPixel 60 Ring, an Arduino (or compatible) and a Real-Time-Clock module. It'll even keep the time when unplugged!

Adding a Real Time Clock to BeagleBone Black

Never lose track of real time again!

by Justin Cooper

The BeagleBone black does not include a battery-backed real time clock to keep track of time between reboots. Fortunately, there is the DS1307 RTC breakout to help us out!

DS1307 Real Time Clock Breakout Board Kit

Real time clock mini-breakout board

by Tyler Cooper

This is a great battery-backed real time clock (RTC) that allows your microcontroller project to keep track of time even if it is reprogrammed, or if the power is lost. Perfect for datalogging, clock-building, time stamping, timers and alarms, etc. The DS1307 is the most popular RTC, and works best with 5V-based chips such as the Arduino.

Adding a Real Time Clock to Raspberry Pi

Keep time at all times with a real time clock

To keep costs low, the Raspberry Pi does not include a Real Time Clock module. Instead, users are expected to have it always connected to WiFi or Ethernet and keep time by checking the network. Since we want to include an external module, we'll have to wire one up. We'll go with the easy-to-use and low-cost DS1307.