Unofficial Nextion/TJC User Forum

Basic vs Enhanced start up timing

As an FYI for others, especially in timing-critical applications.

Probably not unexpected, but an enhanced 3.5" takes longer to start up and send the 0x00 0x00 0x00 0xFF 0xFF 0xFF start up string.

NX4832T035
Green trace: 5V rail
Yellow trace: TXD from Nextion

With the basic display, we can see start up string sent ~ 240mS after power up.

NX4832K035
Green trace: 5V rail
Yellow trace: TXD from Nextion

With the enhanced display, we can see start up string sent ~ 380mS after power up.

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