In this example we show an example written in Micropython using the uPycraft IDE. This time we will be trying out the Wemos OLED shield connected to a Wemos Mini.
Requirements
Lets take a look a the shields and boards that are required for this project
| Image | Summary |
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The Wemos mini – ESP8266 based board, it comes with various headers. This is the beauty of it you can create stackable projects with the board and pin compatible shields |
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A 64×48 OLED screen |
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This is simply a base, you plug the Wemos Mini into one side and you can plug a shield or shields into the other side – optional |
Parts List
I connect the Wemos Mini to the dual base and then put the OLED shield along side this. You can connect the OLED shield directly to the Wemos Mini if you want.
Code
This is a basic example
from machine import Pin,I2C
import ssd1306
i2c = I2C(scl=Pin(5), sda=Pin(4), freq=100000) #Init i2c
lcd=ssd1306.SSD1306_I2C(64,48,i2c) #create LCD object,Specify col and row
lcd.text("ESP8266",0,0)
lcd.text("test",0,16)
lcd.text("123456",0,32)
lcd.show() #displayand another example
import time
from machine import Pin, I2C
from ssd1306 import SSD1306_I2C
width = 64
height = 48
i2c = I2C(scl=Pin(5), sda=Pin(4))
oled = SSD1306_I2C(width, height, i2c)
oled.fill(1)
oled.show()
time.sleep(2)
oled.fill(0)
oled.show()
time.sleep(2)
oled.pixel(0, 0, 1)
oled.show()
time.sleep(2)
oled.pixel(63, 47, 1)
oled.show()
time.sleep(2)
oled.text('Hello', 0, 0)
oled.text('World', 0, 10)
oled.show()
time.sleep(2)
oled.invert(True)
time.sleep(2)
oled.invert(False)