78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
/*
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ESP32 eeprom_class example with EEPROM library
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This simple example demonstrates using EEPROM library to store different data in
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ESP32 Flash memory in a multiple user-defined EEPROM class objects.
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Created for arduino-esp32 on 25 Dec, 2017
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by Elochukwu Ifediora (fedy0)
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converted to nvs by lbernstone - 06/22/2019
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*/
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#include "EEPROM.h"
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// Instantiate eeprom objects with parameter/argument names and sizes
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EEPROMClass NAMES("eeprom0");
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EEPROMClass HEIGHT("eeprom1");
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EEPROMClass AGE("eeprom2");
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void setup() {
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Serial.begin(115200);
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delay(1000);
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Serial.println("Testing EEPROMClass\n");
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if (!NAMES.begin(0x500)) {
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Serial.println("Failed to initialise NAMES");
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Serial.println("Restarting...");
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delay(1000);
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ESP.restart();
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}
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if (!HEIGHT.begin(0x200)) {
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Serial.println("Failed to initialise HEIGHT");
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Serial.println("Restarting...");
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delay(1000);
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ESP.restart();
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}
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if (!AGE.begin(0x100)) {
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Serial.println("Failed to initialise AGE");
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Serial.println("Restarting...");
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delay(1000);
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ESP.restart();
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}
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const char* name = "Teo Swee Ann";
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char rname[32];
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double height = 5.8;
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uint32_t age = 47;
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// Write: Variables ---> EEPROM stores
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NAMES.writeString(0, name);
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HEIGHT.put(0, height);
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AGE.put(0, age);
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Serial.print("name: "); Serial.println(name);
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Serial.print("height: "); Serial.println(height);
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Serial.print("age: "); Serial.println(age);
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Serial.println("------------------------------------\n");
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// Clear variables
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rname[0] = '\0';
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height = 0;
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age = 0;
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Serial.print("name: "); Serial.println(rname);
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Serial.print("height: "); Serial.println(height);
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Serial.print("age: "); Serial.println(age);
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Serial.println("------------------------------------\n");
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// Read: Variables <--- EEPROM stores
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NAMES.get(0, rname);
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HEIGHT.get(0, height);
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AGE.get(0, age);
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Serial.print("name: "); Serial.println(rname);
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Serial.print("height: "); Serial.println(height);
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Serial.print("age: "); Serial.println(age);
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Serial.println("Done!");
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}
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void loop() {
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delay(0xFFFFFFFF);
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}
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