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

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

Jimmy Wong — Wed, 20 Feb 2019 02:58:32 GMT

I ported on the latest SDK 15.2 with TWI interface.

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

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

vohra alihussain — Fri, 05 Oct 2018 14:00:17 GMT

hey did u get you solution?

i am also facing same type of problem..

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

abcdcadb — Thu, 08 Mar 2018 03:03:32 GMT

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

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

Anonymous — Wed, 20 Sep 2017 05:47:02 GMT

Can you say this will work for nrf51 devices..? If so then what will be the changes to be made.?

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

Johannes Lorenz — Fri, 18 Dec 2015 18:01:04 GMT

Just perfect, thank you a lot! Yours Johannes

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

monpetit — Fri, 18 Dec 2015 15:37:29 GMT

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

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

monpetit — Fri, 18 Dec 2015 15:01:17 GMT

Hi Johannes,

In fact I already have an example code for SSD1306, but it's used for other purposes so has many unnecessary routines. Besides I don't use u8glib but modify Adafruit's library, so I don't know how fit your project.

Well whatever, I'm show you my code quickly. :)

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

Johannes Lorenz — Fri, 18 Dec 2015 14:41:17 GMT

Hi monpetit,

I tried a right shift

addr = DEVICE_ADDRESS;
addr >>=1;

so 0x78 becomes 0x3c. And used addr instead of DEVICE_ADDRESS in the nrf_drv_tw_tx command. But ended up with a NRF_ERROR_INTERNAL. Only with the direct assignment of

addr = 0x3c;

nrf_drv_tw_tx() works without throwing an error code. Still I have not anything displayed on the oled, so I have to dig further.

Thanks for the tip. Yours Johannes

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

monpetit — Fri, 18 Dec 2015 13:05:36 GMT

You should assign 7 bit device address of SSD1306 as 0x3C or 0x3D.