19. Analog Rotation Potentiometer(EF05018)#

19.1. Introduction#

Analog Rotation Potentiometer can be rotated up to 300 degrees and the analog read value scope is 0~1023.


19.3. Characteristic#

Designed in RJ11 connections, easy to plug.

19.4. Specification#

Item Parameter
SKU EF05018
Connection RJ11
Type of Connection Analog output
Working Voltage 3.3V

19.5. Outlook#


19.6. Quick to Start#

19.6.1. Materials Required and Diagram#

Connect the Analog Rotation Potentiometer to J1 port and the OLED module to IIC port in the Nezha expansion board as the picture shows.


19.7. MakeCode Programming#

19.7.1. 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.

19.7.2. Step 2#

19.7.3. Code as below:#


19.7.5. Result#

The detected value displays on the OLED screen.

19.8. Python Programming#

19.8.1. Step 1#

Download the package and unzip it: PlanetX_MicroPython

Go to Python editor


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

../_images/05001_081.png ../_images/05001_091.png ../_images/05018_10.png

19.8.2. Step 2#

19.8.3. Reference#

from microbit import *
from enum import *
from trimpot import *

trimpot = TRIMPOT(J1)
while True:

19.8.4. Result#

The detected value of the Analog Rotation Potentiometer displays on the micro:bit.

19.9. Relevant File#

19.10. Technique File#