Content for DS3231

The Companion IC

“The Companion IC is a very cool looking Clock + Ohmmeter + Capacitance Meter + Diode Tester! Turn it on by pressing Pin 1 of the IC! Keep this at your work bench for a quick test of components and checking time. Can …

EtchABot: A Versatile CNC Etch A Sketch

“The EtchABot uses an Arduino to turn an Etch A Sketch into a self-erasing CNC (Computer Numerical Control) drawing machine. It’s far from the first motorized Etch A Sketch on the internet. Other projects have used stepper motors to …

Raspberry Pi Barometer Weather Clock

“In this instructable I’ll show you how to build a basic Thermometer / Barometer clock using a Raspberry Pi 2 with a BMP180 I2C sensor displaying on an Adafruit 4 digit 7 segment I2C display. The Pi also uses a …

LCD clock with 4” display

“The clock is built on a 4” (101 mm) LCD displays OD-103 manufactured by Orient Display. The LCD provides high contrast of digits and easy reading from a large distance. The unit runs on batteries and can also be …

DIY Arduino Dot Matrix Wrist Watch

“Wrist watches are amazing and fancy fashion accessories for men and women. Makers always like to use something different. My diy arduino dot matrix wrist watch is the final output after one month working. The watch shows time, date and …

Big, auto dim, room clock (using arduino and WS2811)

“First Hello instructables. This is my first contact with : Instructables, Arduino, Programmable LED’s, So please don’t trow rocks at me for noobish mistakes. Keeping that in mind I’m waiting to read your comments with grate interest and …

Synchronise DS3221 RTC with PC via Arduino

“I wanted to make a data logger for a project with an Arduino and I also needed the real time. So I used DS3231RTC (real time clock). I wanted to synchronise this RTC with my PC. I searched for some …