使用しているESP32のメモリ状況について。
４Mタイプであることの確認。
Chip Revision = 100
CPU Frequency = 240 MHz
Chip ID (MACの下位3バイト) = 2C4E45
Flash Chip Size = 4194304 byte
Free Heap Size = 292916
Free Sketch Space = 1310720
Sketch Size = 900368
WiFi Station MAC Address = XX:XX:XX:XX:00:00
WiFi SoftAP MAC Address = 00:00:00:00:00:00
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#include <WiFi.h> // ESP32ではこちらを使用
void setup() {
delay(1000);
Serial.begin(115200);
Serial.println();
Serial.println("-----ESP32 Chip Information-----");
Serial.println();
Serial.print("Chip Revision = ");
Serial.println(ESP.getChipRevision());
Serial.print("CPU Frequency = ");
Serial.print(ESP.getCpuFreqMHz());
Serial.println(" MHz");
Serial.print("Chip ID (MACの下位3バイト) = ");
uint64_t chipid = ESP.getEfuseMac(); // MACアドレスから取得
Serial.println*1;
Serial.println(" byte");
Serial.print("Free Heap Size = ");
Serial.println(ESP.getFreeHeap());
Serial.print("Free Sketch Space = ");
Serial.println(ESP.getFreeSketchSpace());
Serial.print("Sketch Size = ");
Serial.println(ESP.getSketchSize());
Serial.println();
uint8_t mac0[6];
WiFi.macAddress(mac0);
Serial.printf("WiFi Station MAC Address = %02X:%02X:%02X:%02X:%02X:%02X\r\n", mac0[0], mac0[1], mac0[2], mac0[3], mac0[4], mac0[5]);
uint8_t mac1[6];
WiFi.softAPmacAddress(mac1);
Serial.printf("WiFi SoftAP MAC Address = %02X:%02X:%02X:%02X:%02X:%02X\r\n", mac1[0], mac1[1], mac1[2], mac1[3], mac1[4], mac1[5]);
}
void loop() {
// ループ処理は不要なら空のままでOK
}
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