Interfacing nRF52 with 16x2 LCD

[Parag_Pande]

Hi All,

I am trying to interface nRF52DK with 16x2 LCD in 4 bit mode. Does nRF52 DK needs any driver circuit between nRF52 and 16x2 LCD

[ketiljo]

Depends on the IO voltage of the LCD module. If it's 5V part, you might need level shifters, Check the datasheet of the module. If Vih_low is lower than VDD of the nR52, you're fine.

[Parag_Pande]

Thanks for your reply,

I am using JHD 162A 16x2 LCD module ..in datasheet it is showing  VIH = 2.2V(min) ,VDD(max) and VIL = -0.3V(min), 0.6V(max)...But I am not getting anything on LCD..what should be the problem?

[ketiljo]

Could be anything, code, connections etc. Have you set the contrast?