diff --git a/main/flash.c b/main/flash.c
new file mode 100644
--- /dev/null
+++ b/main/flash.c
@@ -0,0 +1,92 @@
+//
+// flash: nonvolatile k/v storage
+//
+
+#include <esp_event.h>
+#include <esp_log.h>
+#include "nvs_flash.h"
+#include "flash.h"
+#include <inttypes.h>
+
+
+// Private variables
+static nvs_handle_t my_handle;
+static const char *TAG = "flash";
+
+
+// Initialize flash storage
+void flash_init(void)
+{
+     // Initialize NVS
+    esp_err_t ret = nvs_flash_init();
+    if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
+        ESP_ERROR_CHECK(nvs_flash_erase());
+        ret = nvs_flash_init();
+    }
+    ESP_ERROR_CHECK(ret);
+
+}
+
+
+// Write k/v to flash
+void flash_write(char* key, int32_t val)
+{
+    ESP_LOGI(TAG, "Writing keyval %s => %ld", key, val);
+
+    // Open handle
+    esp_err_t err = nvs_open("storage", NVS_READWRITE, &my_handle);
+
+    if (err != ESP_OK) 
+    {
+        ESP_LOGI(TAG, "Error (%s) opening NVS handle!\n", esp_err_to_name(err));
+    } 
+    else 
+    {
+        // Write
+        err = nvs_set_i32(my_handle, key, val);
+
+        if(err != ESP_OK)
+            ESP_LOGI(TAG, "Failed!\n");
+
+        err = nvs_commit(my_handle);
+        if(err != ESP_OK)
+            ESP_LOGI(TAG, "Failed!\n");
+
+        // Close
+        nvs_close(my_handle);
+    }
+}
+
+
+// Read k/v from flash
+int32_t flash_read(char* key)
+{
+    int32_t val = -1; // value will default to -1 if not set
+
+    // Open
+    ESP_LOGI(TAG, "Reading keyval %s", key);
+    esp_err_t err = nvs_open("storage", NVS_READONLY, &my_handle);
+    
+    if (err != ESP_OK) 
+    {
+        ESP_LOGI(TAG, "Error (%s) opening NVS handle!\n", esp_err_to_name(err));
+    } 
+    else
+    {
+        // Read
+        err = nvs_get_i32(my_handle, key, &val);
+        switch (err) {
+            case ESP_OK:
+                ESP_LOGI(TAG, "Read value %ld\n", val);
+                break;
+            case ESP_ERR_NVS_NOT_FOUND:
+                ESP_LOGI(TAG, "The value is not initialized yet!\n");
+                break;
+            default :
+                ESP_LOGI(TAG, "Error (%s) reading!\n", esp_err_to_name(err));
+        }
+        // Close
+        nvs_close(my_handle);
+    }
+    return val;
+}
\ No newline at end of file