Tag: RTC

Off-air awfully accurate drop-in RTC & calendar on I²C This RTC & Calendar board is built around Micro Crystal’s type RV-3029-C2 integrated circuit. The ‘3029 is a real-time-clock/calendar (RTC) cheerfully communicating via the I2C protocol. It offers good precision out of...

This application note describes implementing a simple circuit for the FT930/FT931RTC external power supply switch. The Texas Instruments SN74AUC2G53 Single-Pole Double-Throw (SPDT) analog switch is used to select the power supplied by the 1.5V battery or by the 1.2V internal LDO. You...

Copperhill Technologies announced the release of its PiCAN3 CAN-Bus Board for the Raspberry Pi 4, adding Controller Area Network capabilities plus a real-time clock to the new Raspberry CPU. The PiCAN3 board with SMPS (Switch Mode Power Supply) provides CAN-Bus capabilities for the...

More than 35 percent smaller than the tiniest RTC alternatives, the MAX31341B nanoPower real-time clock (RTC) from Maxim Integrated Products operates at less than 180nA. By Julien Happich @ eenewsembedded.com The 2x1.5mm device offloads the central microcontroller from timekeeping,...

Dilshan Jayakody designed and build a programmable light controller that is able to turn ON and OFF a LED at predetermined time of each day. All the design files and source code related to this project are available at https://github.com/dilshan/programmable-light. The complete...

Simple LED matrix Clock based on the popular ESP8266 with Real Time Clock module and time synchronization over WiFi from an NTP server. One note on the RTC module, apparently it also has the ability to charge the battery, however that's not a good idea when using a CR2032. One possible...

Hi guys, in one of our previous tutorials, we built a real-time clock with temperature monitor using the DS3231 and the 16×2 LCD display shield. Today, we will build an upgrade to that project by replacing the 16×2 LCD display with an ST7735 based 1.8″ colored TFT display. Apart...

Hi guys, in one of our previous tutorials, we made a real time clock, using the DS3231 RTC Module and the 1602 LCD display module. For this tutorial, we will be building something similar using the DS1302 RTC module and the Nokia 5110 display module. Unlike the 1602 LCD module which was...