diff --git a/chip_info.c b/chip_info.c
new file mode 100644
index 0000000..d248345
--- /dev/null
+++ b/chip_info.c
@@ -0,0 +1,40 @@
+
+#include <stdio.h>
+#include <inttypes.h>
+#include "sdkconfig.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "esp_chip_info.h"
+#include "esp_flash.h"
+
+void app_main(void)
+{
+    esp_chip_info_t chip_info;
+
+    esp_chip_info(&chip_info);
+    printf(" ESP32 Chip Name: %s\n", CONFIG_IDF_TARGET);
+    printf(" ESP32 vesion:%s\n ", esp_get_idf_version());
+
+
+    printf("This is ESP32 chip with %d CPU core(s) , WiFi%s%s, model:%d \n ",
+           chip_info.cores,
+           (chip_info.features & CHIP_FEATURE_BT) ? "/BT" : "",
+           (chip_info.features & CHIP_FEATURE_BLE) ? "/BLE" : "",
+           chip_info.model );
+
+    unsigned major_rev = chip_info.revision / 100;
+    unsigned minor_rev = chip_info.revision % 100;
+    printf("ESP32 revision v%d.%d \n ", major_rev, minor_rev);
+
+    printf("%s flash\n",(chip_info.features & CHIP_FEATURE_EMB_FLASH) ? "Embedded" : "External");
+
+    printf("Minimum free heap size: %ld PRIu32 bytes\n", esp_get_minimum_free_heap_size());
+
+    for (int i = 5; i >= 0; i--) {
+        printf("Restarting in %d seconds...\n", i);
+        vTaskDelay(1000 / portTICK_PERIOD_MS);
+    }
+    printf("Restarting now.\n");
+    fflush(stdout);
+    esp_restart();
+}
diff --git a/ex1.c b/ex1.c
new file mode 100644
index 0000000..aa648d5
--- /dev/null
+++ b/ex1.c
@@ -0,0 +1,24 @@
+#define pinLed 25
+#define button 21
+int buttonMode=0;
+
+
+void IRAM_ATTR Interrupts(){
+  buttonMode=digitalRead(button);
+}
+void setup(){
+  Serial.begin(115200);
+  pinMode(pinLed, OUTPUT);
+  pinMode(button, INPUT);
+  attachInterrupt(digitalPinToInterrupt(button), Interrupts, CHANGE);
+
+}
+void loop(){
+
+  if(buttonMode){
+    digitalWrite(pinLed, LOW);
+  }else{
+    digitalWrite(pinLed, HIGH);
+  }
+  delay(100);
+}