18. Push Button Module(EF05017)#

18.1. Introduction#

The Push button module is able to detect your press action.

18.2. Products Link#

18.3. Characteristic#

Designed in RJ11 connections, easy to plug.

18.4. Specification#

Item	Parameter
SKU	EF05017
Connection	RJ11
Connections type	Digit output
Power	3.3V

18.5. Outlook#

18.6. Quick to Start#

18.6.1. Materials Required and Diagram#

Connect the Push-button module to J1 port in the Nezha expansion board as the picture shows.

18.7. MakeCode Programming#

18.7.1. 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.

18.7.2. Step 2#

18.7.3. Code as below:#

18.7.4. Link#

Link: https://makecode.microbit.org/_7bYWKYccY73R

You may also download it directly below:

18.7.5. Result#

The icons display on the micro:bit accordingly with the order given by pressing button A or B or A+B.

18.8. Python Programming#

18.8.1. Step 1#

Download the package and unzip it: PlanetX_MicroPython

Go to Python editor

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

18.8.2. Step 2#

18.8.3. Reference#

from microbit import *
from enum import *
from button import *

button = BUTTON(J1)
while True:
    if button.A_is_pressed():
        display.show(Image.HAPPY)
    elif button.B_is_pressed():
        display.show(Image.SAD)
    elif button.AB_is_pressed():
        display.show(Image.COW)
        sleep(500)

18.8.4. Result#