Inquiry about Interfacing Grove LCD (White Blue) with NRF52832

[Amank0623]

Dear [Dev Zone Support Team],

I hope this email finds you well.

I am currently working on a project that involves interfacing a Grove LCD (White Blue) with an NRF52832 microcontroller. I have been exploring the documentation and resources available, but I couldn't find specific information on how to interface this particular LCD module with the NRF52832.

Could you please provide guidance or documentation on how to properly interface the Grove LCD (White Blue) with the NRF52832 microcontroller? Specifically, I am looking for information on pin connections, communication protocols (such as I2C or SPI), and any sample code or libraries available to facilitate the integration process.

Any assistance or direction you can provide would be greatly appreciated. Thank you very much for your support.

Looking forward to your response.

Best regards, Aman 

[Maria Gilje]

Hello Aman,

Have you tried the Grove LCD sample in Zephyr? It is found in <path-to-ncs>/zephyr/samples/drivers/misc/grove_display. The communication protocol is I2C. For nRF52832 (as well as other SoCs) there is the TWI peripheral which is I2C compatible.

The nRF52832 DK supports Arduino shields which is a possible way to connect the LCD screen to the DK. If you don't have the Grove Base shield, you can connect the Grove LCD to two GPIO pins and VCC/GND. The headers on the nRF52832 DK are labelled. See the datasheet for the nRF52832 and the nRF52832 DK connector interface for more information on which pins you can use. Configure the pins in devicetree with pinctrl.

Best regards,

Maria

[Amank0623]

that sample is for different variant of LCD i.e GROVE LCD RGB not for GROOVE LCD (white & blue)

[Maria Gilje]

The sample is helpful for you still. The White on Blue variant also uses I2C/TWI and has features which is also on the RGB variant.

Please take a look at the Grove LCD RGB driver in Zephyr: both source code and API reference, the datasheet for the Grove LCD RGB, and the Grove LCD to search for any differences which you should adapt to the White on Blue variant. I don't have the hardware to test right now, but I can try to find a Grove LCD White on Blue (or similar) to test as well. This may take some time though.

Best regards,

Maria

[Amank0623]

yes this lcd is working by the help of Grove sample