Tag Archives: DS3231

Real Time Clock and Temperature Monitor using DS3231 Module

The DS3231 is a very low power RTC chip, it has the ability to keep time with incredible accuracy such that even after power has been disconnected from your product, it can run for years on a connected coin cell battery. This module has the ability to communicate via I2C or SPI but for this tutorial we will be using the I2C mode for communications between our arduino and the DS3231. The module also comes with a quite accurate temperature sensor which we will be using to get temperature readings. The collected temperature and clock data is then displayed on the 16×2 LCD via the Arduino.

Real Time Clock and Temperature Monitor using DS3231 Module – [Link]

Arduino Weather Station With E-Ink Display

Arduino Uno home weather station with e-ink display The hardware used for this project is:

  • Waveshare 4.3 e-ink display
  • Arduino Uno
  • Adafruit BME280 combined temperature, humidy and atmospheric pressure
  • DS3231 based hardware clock

Arduino Weather Station With E-Ink Display – [Link]

Real Time Clock On 20×4 I2C LCD Display with Arduino

Sometimes it may be necessary to use a display while making a hardware project, but the size and the type of the display may vary according to the application. In a previous project, we used a 0.96″ I2C OLED display, and in this project we will have an I2C 20×4 character display.

This tutorial will describe how to use 20 x 4 LCD display with Arduino to print a real-time clock and date.

Real Time Clock On 20×4 I2C LCD Display with Arduino – [Link]

Thermohygrometer with clock and LCD display on Arduino UNO

techrm @ instructables.com has a tutorial on a nice thermohydrometer:

These 7 steps will drive you through the “construction” of a thermo-hygrometer with clock on Arduino UNO.

Data and time, humidity and temperature will be shown on a LCD 16×2 display .If you have purchased a LCD display and want to know how to properly solder a pin header to it, take a look at our tutorial “Yet another tutorial on how to solder”.

Each step of this tutorial is independent from the others. So, if you are looking for an easy way to make your DS3231 work (for example) this tutorial is also suitable for you.

Thermohygrometer with clock and LCD display on Arduino UNO – [Link]

Adjusting clock with alarm, hygrometer & thermometer on 1.8″ ST7735 display

pb300160-600

Nicu Florica blogged about his adjusting clock with alarm, hygrometer and thermometer on 1.8″ ST7735 display:

I use feature from article Another adjusting clock with alarm & thermometer using DS3231 on 1.8″ ST7735 display and change reading internal temperature of DS3231 with DHT22 sensor (AM2302), but you can use a cheaper and not very precise DHT11 sensor.
By using educ8stv_rtctft160_alarm_dht.ino or much better educ8stv_rtctft160_alarm_eeprom_dht.ino sketch, on display you can see: name of day, date, hour clock, hour alarm, temperature and humidity

Adjusting clock with alarm, hygrometer & thermometer on 1.8″ ST7735 display – [Link]

Plotclock with a DS3231 Real Time Clock and an Arduino UNO

educ8s.tv uploaded a new video. This time is a plotter clock using DS3231 and Arduino.

Hey guys, I am Nick and welcome to educ8s.tv a channel that is all about DIY electronics projects with Arduino, Raspberry Pi, ESP8266 and other popular boards. Today we are going to build this Plot Clock, a device that does not use a display to tell the time, but it writes the time using a whiteboard marker. Let’s see it in action. Every minute, it erases the previous time, so it has a clear surface to write on, and then it writes the current time with the marker. Impressive isn’t it? The brains of this project is an Arduino Uno. I am also using a DS3231 Real Time clock module in order to keep the time. Let’s now see how to build this project.

Plotclock with a DS3231 Real Time Clock and an Arduino UNO [Link]

DIY Arduino ProMini Data Logger

New Dupont-jumper build of the basic data logger build for 2016
New Dupont-jumper build of the basic data logger build for 2016

Ed Mallon has details on his DIY ProMini data logger:

Typical pro-mini loggers built with this design sleep at 0.25mA, before extra sensors are added. At that current draw, the logger should deliver approximately six months of operation on three brand new AA batteries with a 15min duty cycle; depending on sensor load.

DIY Arduino ProMini Data Logger – [Link]

Arduino Touch Screen Music Player and Alarm Clock Project

speaker

Dejan Nedelkovski build an Arduino-powered MP3 Music Player plus Alarm Clock. The player has a 3.2″ TFT display and the home screen displays time, date and temperature along with touch control buttons.

In this project I will show you how you can make an Arduino Touch Screen MP3 Music Player and Alarm Clock. You can watch the following video or read the written tutorial below.

Arduino Touch Screen Music Player and Alarm Clock Project – [Link]

Chronio – Low power Arduino based (smart)watch

chronio

Max.K @ hackaday.io designed his own impressive watch based on Atmega328p with Arduino bootloader, Maxim DS3231 (<2min per year deviation),  96×96 pixel Sharp Memory LCD (LS013B4DN04) and it’s powered by a CR2025 160mAh coin cell battery.

Chronio is an Arduino-based 3D-printed Watch. By not including fancy Wifi and BLE connectivity, it gets several months of run time out of a 160mAh button cell. The display is an always-on 96×96 pixel Sharp Memory LCD. If telling the time is not enough, you can play a simplified version of Flappy Bird on it.

Chronio – Low power Arduino based (smart)watch – [Link]

RELATED POSTS

Real time clock and temperature monitor with a DS3231 and a Color TFT

In this video educ8s.tv is building a Real Time clock and temperature monitor with a big 3.2″ Color TFT display. They are using a DS3231 Real Time clock module to get the time, the date and the temperature. The heart of the project is the powerful Arduino Due board, which can drive the display and update it without any visible flickering at all! Impressive. Let’s start!

A few weeks ago, I tested this 3.2” color TFT display for Arduino with both Arduino Mega and Due. The display works fine and I built a simple project with it. It is a temperature monitor and a real time clock. As you can see at the top, we can see the current date and time, we can see the temperature right now, and at the bottom the Arduino records the minimum and the maximum temperature that it has measured. I also tried to design a basic user interface just with simple shapes. As you can see everything works fine, and it is a very easy and useful project to build. Let’s see how to do it!

Real time clock and temperature monitor with a DS3231 and a Color TFT – [Link]