GPIO 34 & 35 always reads as LOW with Pull-up #782
Description
Hardware:
Board: ?ESP32 WROOM32?
Core Installation/update date: ?11/jul/2017?
IDE name: ?Platform.io?
Flash Frequency: ?40Mhz?
Upload Speed: ?115200?
Description:
GPIO read on pin 34 and 35 returns LOW even I have used internal pull-up. One of post on ESP32 I have read as silicon bug and handled using RTC GPIOs 34 - 39 are impacted with this silicon bug.
Appreciate help or pointers on how to resolve it.
Sketch:
#include <Arduino.h>
const int switchGPIOs[] = {34, 35, 32, 33, 25, 26}; //Connected to Switches
const int totalSwitches = sizeof(switchGPIOs)/sizeof(switchGPIOs[0]);
const int ssrGPIOs[] = {27, 14, 12, 13, 15, 2}; //Connected to LEDs
void initGPIOs() {
for (int i = 0; i < totalSwitches; i++) {
pinMode(switchGPIOs[i], INPUT_PULLUP);
pinMode(ssrGPIOs[i], OUTPUT);
digitalWrite(ssrGPIOs[i], HIGH);
}
}
void readSwitches() {
for (int i = 0; i < totalSwitches; i++) {
int value = digitalRead(switchGPIOs[i]);
Serial.printf("Value read is %d ==> %d\n", i, value);
digitalWrite(ssrGPIOs[i], value);
}
}
void setup() {
Serial.begin(115000);
initGPIOs();
}
void loop() {
readSwitches();
delay(30);
}Debug Messages:
None