SSD1306_I2C with Openmv cam H7 plus

udhai · July 4, 2023, 1:05pm

How can i interface ssd1306 oled display with openmv cam with I2C communication.
The display size was 128*64

kwagyeman · July 4, 2023, 6:20pm

stlehmann/micropython-ssd1306/blob/master/ssd1306.py

# MicroPython SSD1306 OLED driver, I2C and SPI interfaces

from micropython import const
import framebuf


# register definitions
SET_CONTRAST = const(0x81)
SET_ENTIRE_ON = const(0xA4)
SET_NORM_INV = const(0xA6)
SET_DISP = const(0xAE)
SET_MEM_ADDR = const(0x20)
SET_COL_ADDR = const(0x21)
SET_PAGE_ADDR = const(0x22)
SET_DISP_START_LINE = const(0x40)
SET_SEG_REMAP = const(0xA0)
SET_MUX_RATIO = const(0xA8)
SET_COM_OUT_DIR = const(0xC0)
SET_DISP_OFFSET = const(0xD3)
SET_COM_PIN_CFG = const(0xDA)

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udhai · July 5, 2023, 4:23am

Thanks ! for answering but while using this library i get an error message " ‘I2C’ object has no attribute ‘writeto’ "
i am working with openmv cam h7 plus
here i attached the screen shot

kwagyeman · July 5, 2023, 5:35pm

You need to pass the machine module: class I2C – a two-wire serial protocol — MicroPython 1.19 documentation