Inquiry about Interfacing Grove LCD (White Blue) with NRF52832

RE: Inquiry about Interfacing Grove LCD (White Blue) with NRF52832

Amank0623 — Thu, 04 Apr 2024 10:46:33 GMT

yes this lcd is working by the help of Grove sample

RE: Inquiry about Interfacing Grove LCD (White Blue) with NRF52832

Maria Gilje — Wed, 03 Apr 2024 13:18:36 GMT

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

RE: Inquiry about Interfacing Grove LCD (White Blue) with NRF52832

Amank0623 — Wed, 03 Apr 2024 11:27:29 GMT

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

RE: Inquiry about Interfacing Grove LCD (White Blue) with NRF52832

Maria Gilje — Wed, 03 Apr 2024 09:33:59 GMT

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