diff --git a/app/drivers/data_port/socket_inet/wifi.c b/app/drivers/data_port/socket_inet/wifi.c
index be298dd..341a27d 100644
--- a/app/drivers/data_port/socket_inet/wifi.c
+++ b/app/drivers/data_port/socket_inet/wifi.c
@@ -7,7 +7,7 @@
 #include "esp_netif_types.h"
 #include "esp_err.h"
 
-#define CONFIG_SYS_LOG_LEVEL SYS_LOG_LEVEL_INF
+#define CONFIG_SYS_LOG_LEVEL SYS_LOG_LEVEL_WRN
 #define SYS_LOG_DOMAIN "WIFI"
 #include "sys_log.h"
 
diff --git a/app/drivers/ws2812_spi/ws2812_spi.c b/app/drivers/ws2812_spi/ws2812_spi.c
index d396fe0..1adfe2f 100755
--- a/app/drivers/ws2812_spi/ws2812_spi.c
+++ b/app/drivers/ws2812_spi/ws2812_spi.c
@@ -52,7 +52,7 @@ static struct
     spi_host_device_t host_id;
     spi_device_handle_t spi_hdl;
     os_mutex_t mutex_hdl;
-    uint16_t spi_pin;
+    uint8_t spi_pin;
     int max_transfer_sz;
 } s_cm;
 
@@ -103,7 +103,7 @@ void ws2812_spi_led_strip_init(uint8_t host_id, uint16_t max_led_num)
         ESP_ERROR_CHECK(ret);
 
         s_cm.host_id = host_id;
-        s_cm.spi_pin = -1;
+        s_cm.spi_pin = ~0;
     }
 
     if (!os_mutex_is_valid(&s_cm.mutex_hdl))
@@ -254,12 +254,12 @@ int ws2812_spi_led_strip_refresh(ws2812_spi_led_buf_t *buf, uint32_t leds, uint8
 
     if (s_cm.spi_pin != pin)
     {
-        if (s_cm.spi_pin > 0)
+        if (GPIO_USED(s_cm.spi_pin))
         {
             drv_gpio_pin_configure(s_cm.spi_pin, _GPIO_DIR_OUT, _GPIO_PUD_PULL_UP);
         }
 
-        if (pin > 0)
+        if (GPIO_USED(pin))
         {
             drv_gpio_pin_configure(pin, _GPIO_DIR_OUT, _GPIO_PUD_PULL_UP);
             esp_rom_gpio_connect_out_signal(pin, spi_periph_signal[s_cm.host_id].spid_out, true, false);