HTIT-WB32 gpio indexing

#1

Hi all.
I have an HTIT-WB32 board with oled 0.96’’.
I’m trying some sample using Arduinno Ide 2.

I’d like to flicker 1 gpio output. But wichi values I have to use for pinMode and digitalWrite function, regarding the picture of pinout?

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image.jpg1564×969 357 KB

That is: I’d like to drive per pin 5 - GPIO5 - V_SPI_CSO as output gpio, which

I try

void setup() {
    pinMode(5, OUTPUT);
}

void loop() {
    digitalWrite(5, HIGH);
    delay(100);
    digitalWrite(5, LOW);
    delay(100);
}

I look the output with an AZDelivery Logic Analyzer (my oscillospe is broken), but nothing flicker.

There a special mode to address gpio in HTIT-WB32?

Best regards,
MZ

#2

Add some serial ports for printing, and check whether the program executes normally.