Board

LOLIN S2-mini

Device Description

A bare LOLIN S2-mini board: [S2 mini — WEMOS documentation]

Hardware Configuration

No additional HW.

Version

v3.2.0

IDE Name

Arduino IDE 2.3.6

Operating System

Win10

Flash frequency

40MHz

PSRAM enabled

yes

Upload speed

921600

Description

The command

gpio_pullup_en(GPIO_NUM_xx); // no effect

has generally no effect on the chosen GPIO, except for GPIO18 (very strange...)

It was tested with different boards of the same type.
GPIO voltage was measured with a multimeter.

(It was also tested with ESP board manager 3.1.3)
Seems this issue is related to the closed but unhandeled issue #5951

Sketch

(stripped) code to reproduce the issue:


#include <driver/rtc_io.h>

void setup() {
  esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON);
  // sample pins
  gpio_pullup_en(GPIO_NUM_16);  // no effect
  gpio_pullup_en(GPIO_NUM_18);  // OK -> GPIO18 = 3V3
  gpio_pullup_en(GPIO_NUM_8);   // no effect
  gpio_pullup_en(GPIO_NUM_10);  // no effect

  delay(10);
  esp_deep_sleep_start();

}

void loop() {
}

Debug Message

No error message.
the command gpio_pullup_en(...) always returns 0 

Other Steps to Reproduce

No response

I have checked existing issues, online documentation and the Troubleshooting Guide

• I confirm I have checked existing issues, online documentation and Troubleshooting guide.