[pyboard clone] SSD1306 - TypeError: object with buffer protocol required

[douggilliland]

I'm trying to get an SSD1306 working with a clone of the pyboard. I did search the forum and found a couple of other complaints about the same issue but didn't follow the solutions they offered there.

Code is pretty simple:

import machine, ssd1306
i2c = machine.I2C(1)
oled = ssd1306.SSD1306_I2C(128, 64, i2c, 60)
oled.fill(0)
oled.text("Hello World", 0, 0)
oled.show()

Getting back error message:

>>> import ssdTest
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "ssdTest.py", line 3, in <module>
TypeError: object with buffer protocol required

I2C scan shows:

>>> import machine
>>> i2c=machine.I2C(1)
>>> i2c.scan()
[33, 60]

The 33 is a MCP23008 I2C port expander and the 60 is the OLED display so I'm pretty sure the I2C is connected. I do talked to an MCP23008 on the connection earlier today.

The offending line seems to be:

oled = ssd1306.SSD1306_I2C(128, 64, i2c, 60)

Using ssd1306.py library and the initializer for the function looks like:

class SSD1306_I2C(SSD1306):
def __init__(self, width, height, i2c, addr=0x3c, external_vcc=False):
...

>>> sys.version
'3.4.0'

>>> sys.platform
'pyboard'

Any help is appreciated. Thanks!

[brian park]

same here. did you fix this problem?

[jimmo]

>>> sys.version
'3.4.0'

This is the Python version, could you please also let us know the MicroPython version? sys.implementation

same here. did you fix this problem?

Could you check the same please?

If you're using the latest version of ssd1306.py, you'll need to be running MicroPython v1.11. https://micropython.org/downloads