NHD-2.4-240320CF-BSXV-FT display not working
We are interfacing an ESP32-C6-WROOM-1 with a Newhaven display using the example code provided on the Newhaven Display International website and the reference example from Espressif Systems (ESP-IDF LCD example).
Observations:
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SPI signals were probed and verified:
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CS (Chip Select) – Working correctly
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SCLK (Clock) – Clock signal present and stable
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DC (Data/Command) – Toggling properly
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RESET line – Proper reset pulse observed
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Power supply levels – Verified and stable
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No hardware short or wiring issue detected
Problem:
Although all control signals (CS, Clock, DC, Reset) are functioning correctly and the example code from Espressif is used without modification, the display does not print or show any output. The screen remains blank.
Additional Notes:
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The code used is the official example provided by Espressif for SPI LCD interfacing.
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Hardware connections were cross-verified with the display datasheet.
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SPI communication activity is visible on oscilloscope, but no visual output appears on the display.
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Hi Nadheem,
Could you provide your wiring diagram on how you are connecting with the display? I also wanted to ask if you are pulsing the RESET every SPI transmission? The reset pin should only be done once when the display is powered on.
Could you also check with your SPI transmission through the oscilloscope if it follows this timing diagram?
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