ESP32 Arduino: Updating firmware from the SPIFFS file system

#include "SPIFFS.h"

#include "Update.h"

void setup() {

Serial.begin(115200);

if(!SPIFFS.begin(true)){

Serial.println("An Error has occurred while mounting SPIFFS");

return;

}

File file = SPIFFS.open("/firmware.bin");

if(!file){

Serial.println("Failed to open file for reading");

return;

}

Serial.println("Starting update..");

size_t fileSize = file.size();

if(!Update.begin(fileSize)){

Serial.println("Cannot do the update");

return;

};

Update.writeStream(file);

if(Update.end()){

Serial.println("Successful update");

}else {

Serial.println("Error Occurred: " + String(Update.getError()));

return;

}

file.close();

Serial.println("Reset in 4 seconds...");

delay(4000);

ESP.restart();

}

void loop() {}

ESP32 Arduino: Updating firmware from the SPIFFS file system was last modified: January 2nd, 2022 by Jovan Stosic

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