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.

Arduino LED clock with DS3231 RTC module

“Arduino LED clock with the DS3231 RTC clock and contrlled by a rotary encoder. Finally I was able to complete the Arduino LED clock with DS 3231 RTC module. This is checked few days and I found the clock is …

Project  LumiClock

LumiClock

“This is a clock based project. The title of which embodies the main means of displaying the time. The “Lumi”, being an abbreviation for Luminous. Utilising lumious paper in conjunction with UV LED’s to display the time which fades …

Homemade IV-22 VFD Clock!

“Glowing retro tubes made in the Soviet Union? 80’s electro-style? Sign me up! (or sign us up comrade?) Many of you probably know how these things go: you start with making a nixie clock and you end up with …

SG-2.0 Wireless Weather Station

“In this paper we have presented how to implement a Weather Station[1] to monitor various parameters: - Temperature (indoor + outdoor); - Humidity (indoor + outdoor); - Pressure; - Altitude; The practical project is based on the Arduino Nano Interface[2] and involves the use …

Project  O-Clock

O-Clock

“This clock uses side glow fiber optics to tell the time in a colorful way. Red/Green/Blue = Hour/Minute/Second. The light comes frn an LED strip that makes the fiber glow. But it also emits light at the …

Powering a ProMini logger for One Year on a Coin Cell

“The EDU build we released in 2020 provides remarkable flexibility for courses in environmental monitoring. However an instructor still needs to invest about five days ordering parts, testing components, and preparing kits for a 15-20 seat course being run remotely …

DIY Arduino IN-1 (ИН-1) Nixie Tube Clock

“This is another one of the many unusual clocks you can see in some of my previous projects. IN-1 nixie tubes are relatively cheap. Nixie tube is an electronic device used for displaying numerals or other information using glow …

Pico Railway Clock

“Reinvigorating a handsome old clock and making it super-accurate, without any internet. Uses a Raspberry Pi Pico, a radio antenna and a couple of components to emulate a signal from a Mother clock. The DCF77 signal is a radio signal …

AIM65 lookalike computer from scratch

“AIM65 is a legendary single board computer from the 70s. I build on from scratch using Arduino standard components. The idea The Rockwell AIM 65 was one of the early 6502 based computers of the 70s. It had a 20 …

Project  Lcd-Meter

Lcd-Meter

“Measuring temperature and humidity featuring LC display and webserver upload using Arduino with Ethernet shield, LCD and realtime clock This project consists of two parts: an Arduino-based module to measure temperature and humidity and sending these data to a webserver …