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.

Modular Display Clock

“This project makes use of a previous project Modular Display Element to make a digital clock, using four of the modules connected together and controlled by a Microbit and an RTC. Supplies: - Microbit V2 (preferred due to built in speaker …

Cyclotron Clock

“3D Printed ESP32 WROOM 32D Perpetual Timepiece Using a wooden base, 3D printed parts and an ESP32 WROOM 32D module to display the time on four 28BYJ-48 Stepper Motor driven “perpetual rotating” digits. Time is stored on a RTC …

Analumi_Clock V3

“Part of the process of making the Analumi-Clock was experimenting with different display mediums. In this version the display medium was a 3D printed photo luminescent transluscent disc. The intention was this would to be lit from the back using …

Automatic Pill or Medication Dispenser

“I created this pill or medication dispenser because my wife has to take several tablets in the morning and evening and was getting confused with which tablets she had taken and therefore not always taking the right medication at the …

How to Make a Neopixel Rainbow Clock

“I know making a clock sounds a little irrelevant, especially nowadays because we all have smartphones and no one is going to use or look into the clock for time, but it is good when you are doing some work …

Raspberry Pi Pico Thermometer & Clock

“Dear friends welcome to another tutorial! Today we are going see how to build this low-cost real-time clock and thermometer with a color TFT display using CircuitPython on a Raspberry Pi Pico board. 6 years ago, I built a similar …

Digital Clock With 7-segment LED Display

“The most common 7-segment application is making the digital clock. There are various commercial 7-segment parts available but their size is not big enough to make a wall mount type of digital clock. Thats why Im using the small square …

Project  Mini-Deck

Mini-Deck

“A mini folding cyberdeck based around a Raspberry Pi Zero 2 W, a Zero4U USB Hub, a DreamGear MiniKey, and an Adafruit Mini PiTFT 1.3” This is a little project I’ve been working on and off for a …

Wi-Fi programmable room thermostat with air quality monitor

“Wireless programmable via Wi-Fi room thermostat with air quality monitor and other useful features. Story A commercially available wireless room thermostat works in the autonomous heating system of my apartment. The system, of course, functions without it: the thermostat was …

Arduino matrix scrolling weather station and Clock with BME

“How to make a scrolling weather station that displays the temperature, air humidity and relative atmospheric pressure, and Time. Story From one of my previous projects (Bluetooth-controlled scrolling text), I have a finished 8x56 LEDs matrix consisting of 7pcs MAX7219 …