micro:bit EduFun Mini Project Kit - RTC

10 pc(s)
DEV-02686

$18.00

SGBotic has created a series of Micro:Bit EduFun Mini Project Kits with the aim of making advance devices available to micro:bit inventors. Much efforts have been devoted to designing the makecode's Block packages to remove the complexity of using these devices, making it easier for inventors...
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SGBotic has created a series of Micro:Bit EduFun Mini Project Kits with the aim of making advance devices available to micro:bit inventors. Much efforts have been devoted to designing the makecode's Block packages to remove the complexity of using these devices, making it easier for inventors to incorporate into their projects.

This Real Time Clock (RTC) module is one of these mini project kits. RTC is an electronic clock that keeps track of the current year, month, day as well as current time. It is a great add-on to your micro:bit project for keeping track of time. The RTC can be applied in various projects such as creating an alarm clock, watering the plants at specified time, data-logging, etc.

The RTC in this kit is extremely accurate, and has a temperature sensor inside the chip. It comes with a backup battery so that you can get years of precision timekeeping even when the main power is shut off.

A makecode Block package is developed to remove the complexity of using this RTC in your project.


The projects in the printed guide will guide through the wiring as well as using the makecode Block to set the alarm and display current time/date on a LCD.

Kit includes:

  • RTC module
  • Buzzer
  • M/F jumper wire
  • Printed guide

Take note that Micro:Bit, T-Expansion board and breadboard which are used in the project are not included in this kit. Instead of T-Expansion Board, you can also use any micro:bit breakout board that has SDA/SCL pin (pin 19 and 20). Project 2 also requires I2C LCD kit. All of these can be separately purchased from sgbotic.com.

RTC Specifications:

  • Voltage range: 3.3V to 5V
  • Two Time-of-Day alarms
  • Accuracy ±2ppm from 0°C to +40°C
  • Digital temp sensor output: ±3°C Accuracy
  • Fast (400KHz) I2C interface
  • Accurate calendar up to year 2100
  • Battery backup included

Buzzer Specifications:

  • Voltage range: 3 to 24VDC
  • Rated current: <12mA
  • Output : >95dB
  • Sound Frequency: 3KHz +/-0.5KHz

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