Macetech ChronoDot High Precision Real Time Clock

52110

$15.50 USD
Qty
Price
1
$15.50 ea.

The ChronoDot RTC is an extremely accurate real time clock module, based on the DS3231 temperature compensated RTC (TCXO).


Description [Hide]

The ChronoDot was one of the first handy, easy-to-use "RTC" (real time clock) modules. It's based on the DS3231 temperature compensated RTC by Maxim semiconductor. It includes a CR2016 battery which should last at least 8 years if the I2C interface is only used while the device has 5V power available. No external crystal or tuning capacitors are required.

The DS3231 has an internal crystal and a switched bank of tuning capacitors. The temperature of the crystal is continuously monitored, and the capacitors are adjusted to maintain a stable frequency. Other RTC solutions may drift minutes per month, especially in extreme temperature ranges, where the ChronoDot will drift less than a minute per year. This makes the ChronoDot very well suited for time critical applications that cannot be regularly synchronized to an external clock. Here is a live demo of a DS3231 chip that has been keeping time since it was last synchronized in 2005: DS3231 Web Demo

The ChronoDot will plug into a standard solderless breadboard and also has mounting holes for chassis installation, and is ideal for using with a "EMSL Bulb-Dial" clock.

The I2C interface is very straightforward and virtually identical to the register addresses of the popular DS1337 and DS1307 RTCs, which means that existing code for the Arduino, Basic Stamp, Cubloc, and other controllers should work with no modification.

Summary:

  • Very accurate clock (1 minute per year)
  • Comes with backup battery
  • I2C interface
  • Pre-soldered with breadboard-friendly pins

Documentation [Hide]

You Might Also Like [Hide]

Breadboard Jumper Wire Bundle

21035

This 70-piece flexible wire jumper kit is sure to replace your old-style solid-wire jumpers. These are more flexible, robust, and easy to use!

$6.00 USD


Bulbdial Clock Kit (With Case)

13104

This kit from Evil Mad Science works like an indoor sundial, but with three shadows of different length. This version comes with your choice of laser-cut Acrylic case.

$85.00 USD


Arduino USB Board (Uno R3)

50450

The Arduino Uno is the all-new replacement for the favourite and popular Arduino Duemilanove. Now shipping R3!

$29.45 USD


Arduino Pro Mini 328 - 5V/16MHz

50725

You need to wedge an Arduino into a really tiny spot? Simple - just use a SMD '328 IC. Oh... you want a reset, and voltage regulator too? Why didn't you say so!

$9.95 USD


VS-19 Pico Linear Servo

22090

The VS-19 Pico Linear Servo is a tiny linear actuator with 2cm of travel. The uses for this linear motor are endless, we'll leave it to you to find a killer application for it.

$9.85 USD


Seeed Grove - RTC

29124

Grove Real Time Clock Calendar module.

$6.90 USD


SparkFun DC/DC Converter

50515

Need a tidy DC-to-DC converter? This SparkFun breakout board offers 6 amperes of conversion, taking any DC voltage between 4.5-14VDC, and turning it to a selectable voltage between 0.59 and 5.5VDC.

$21.95 USD


Audio Op-Amp

LM386

A little 8 pin DIP that can be hacked into a light or line following robot known as the "Herbie".

$0.75 USD


2 Position Terminal Block 0.137 Spacing

TBLK2-137

Want to lock down heavier gauge wires down semi-permanent fashion? Here's a 2-position terminal block with 0.137" (3.5mm) spacing.

$1.25 USD


Regular Motor 2

RM2

Need more power out of your gear motor? This is a high-power motor that fits in the same form factor as used by the GM2/3/8/9 style gear motors.

$2.25 USD


Currency


Login

Email:

Password:

Remember Me

Forgot Your Password?

Don't Have an Account?
Sign Up!