Any example code for OLED sd1306 with TWI/I2C and nrf52

[Johannes Lorenz]

Hi,

Here and here are examples of a port of the nice u8glib library to stm32. Based on these, i tried a port to nrf52, but was not successful so far.

I call the oled display via its DEVICE_ADDRESS 0x78 and

ret_code = nrf_drv_twi_tx(&m_twi_master, DEVICE_ADDRESS, buffer, sizeof(buffer), true);

The oled does not send a response, so ret_code contains an error code. I not sure if this is an issue, or the initialization of the display itself is not correctly done.

Therefore, is there any example code available to get an OLED sd1306 module working over TWI/I2C with nrf52?

Yours Johannes

[monpetit]

Here is my example code for SSD1306.

You can select SPI or TWI/I2C(default) module. I have tested on my nRF52-DK with Seeed OLED Display. Hope this helps.

github.com/.../nrf52-spi-i2c-master-ssd1306

[abcdcadb]

Hi,

I tried to exploit your code for my hardware (as picture).

my board is nordic evaluation board PCA10003.

My lcd is 14 pins and I guess i could be here :http://www.farnell.com/datasheets/609753.pdf - there is no D/C pin 

SDA and SCL pins I keep as your code.

the code is stuck at the command of I2c "ssd1306_command(SSD1306_DISPLAYOFF)" it can't escape from the eternal loop.

 

Any idea? it would be appreciated

[vohra alihussain]

hey did u get you solution?

i am also facing same type of problem..

[Jimmy Wong]

I ported on the latest SDK 15.2 with TWI interface. 

github.com/.../SSD1306-LCD-on-NRF52