34. RTC Real-time Module(EF05034)#

34.1. Introduction#

It is a clock module which can achieve counting for year, month, day, hour, minute and second by using the DS1307 clock chip.


34.3. Characteristic#

Designed in RJ11 connections, easy to plug.

34.4. Specification#

Item Parameter
SKU EF05034
Connection IIC
Type of Connection Analog output
Working Voltage 3.3V
Core IC DS1307

34.5. Outlook#


34.6. Quick to Start#

34.6.1. Materials Required and Diagram#

Connect the RTC Real-time module to the IIC port and the OLED to another IIC port in the Nezha expansion board as the picture shows.


34.7. MakeCode Programming#

34.7.1. Step 1#

Click “Advanced” in the MakeCode drawer to see more choices.


We need to add a package for programming, . Click “Extensions” in the bottom of the drawer and search with “PlanetX” in the dialogue box to download it.


Note: If you met a tip indicating that the codebase will be deleted due to incompatibility, you may continue as the tips say or build a new project in the menu.

34.7.2. Step 2#

34.7.3. Code as below:#


34.7.5. Result#

The seconds read by the RTC Real-time module displays on the OLED screen.

34.8. Python Programming#

34.8.1. Step 1#

Download the package and unzip it: PlanetX_MicroPython

Go to Python editor


We need to add ds1370.py for programming. Click “Load/Save” and then click “Show Files (1)” to see more choices, click “Add file” to add ds1370.py from the unzipped package of PlanetX_MicroPython.

../_images/05001_081.png ../_images/05001_091.png ../_images/05034_10.png

34.8.2. Step 2#

34.8.3. Reference#

from microbit import *
from ds1307 import *

ds1307 = DS1307()
while True:

34.8.4. Result#

The seconds read by the RTC Real-time module displays on the micro:bit.

34.9. Relevant File#

34.10. Technique File#