Content for DS3231

DS3231

The DS3231 is a low-cost, extremely accurate I²C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input, and maintains accurate timekeeping when main power to the device is interrupted. The integration of the crystal resonator enhances the long-term accuracy of the device as well as reduces the piece-part count in a manufacturing line. The DS3231 is available in commercial and industrial temperature ranges, and is offered in a 16-pin, 300-mil SO package. The RTC maintains seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with an active-low AM/PM indicator. Two programmable time-of-day alarms and a programmable square-wave output are provided. Address and data are transferred serially through an I²C bidirectional bus. A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failures, to provide a reset output, and to automatically switch to the backup supply when necessary. Additionally, the active-low RST pin is monitored as a pushbutton input for generating a µP reset.

One MAN Clock

“We old timers know this as a MAN. Monsanto and Fairchild may have been first to use the acronym MAN for multi-segment alpha numeric led chip. The 7 segment display you often see. I see some interesting ways to produce …

Making an Alarm Clock That Asks Questions Randomly

“Do you usually have trouble getting up? Set more than a dozen alarm clocks in the morning, but still can’t wake up and turn them off in a daze. When you waking up and find out that you are …

Stranger Board

“Stranger Things themed desktop board / word clock A desktop version of Joyce Byers Christmas lights that you can connect to using your phone and send custom messages. As a bonus it spells the time at each minute. The project is …

Digital Clock using Arduino Nano

“Digital Clock with Hour/ Minute/Second Display, Alarm and Hour chime using Arduino Nano and RTC DS3231. Iam a first time user of Arduino, and I actually made this project to learn programming of micro controllers. Though several digital clocks …

Pico Solar System

“Hardware - Raspberry Pi Pico - Precision RTC Module (DS3231) - Pico Display Pack Software MicroPython The software is written in MicroPython 1.15 and uses a custom build from Pimorony which includes drivers for the display. Download it from the official Pimorony …

Kinetic & Digital Clock (Arduino + 3D Print)

“This is a seven segment clock where instead of LEDs we have segments moving on the Z-axis of the viewing pane, the difference in depth by these segments will allow the viewer to see the time against the white on …

Led Matrix Clock using Arduino And RTC Module

“Today iam going to show you how to make led matrix clock With Arduino & Rtc. this is a simple project does not require high knowledge Today iam going to show you how to make led matric clock With Arduino & RTC …

Local Weather Station

“A weather station that can show local atmospheric pressure, temperature humidity and UV index without any internet connection. For a long time, I wanted to make a weather station without using the internet. It is great to measure the weather …

DIY Arduboy GT

“Homemade Arduboy using custom PCB, modules and all through hole parts that stands out. 1.54” OLED display, silent buttons and RTC FTW For the Arduboy contest I took the opportunity to design a custom PCB for a homemade Arduboy …

Project  MonKlock

MonKlock

“Cistercian Monk’s cypher digital clock. The Cistercians, a Monk order from the 13th century, created a number cypher that was able to map from 0 to 9999 using a single digit. This clock uses a 5x7 LED display to …