diff --git a/examples/peripherals/spi_oled/main/spi_oled_example_main.c b/examples/peripherals/spi_oled/main/spi_oled_example_main.c
index 704eacc1..de3ffe3a 100644
--- a/examples/peripherals/spi_oled/main/spi_oled_example_main.c
+++ b/examples/peripherals/spi_oled/main/spi_oled_example_main.c
@@ -54,18 +54,6 @@ static esp_err_t oled_write_cmd(uint8_t data)
     return ESP_OK;
 }
 
-// Write an 8-bit data
-static esp_err_t oled_write_byte(uint8_t data)
-{
-    uint32_t buf = data << 24;
-    spi_trans_t trans = {0};
-    trans.mosi = &buf;
-    trans.bits.mosi = 8;
-    oled_set_dc(1);
-    spi_trans(HSPI_HOST, trans);
-    return ESP_OK;
-}
-
 static esp_err_t oled_rst()
 {
     gpio_set_level(OLED_RST_GPIO, 0);
diff --git a/examples/peripherals/uart_events/main/uart_events_example_main.c b/examples/peripherals/uart_events/main/uart_events_example_main.c
index 4717169a..fa13130e 100644
--- a/examples/peripherals/uart_events/main/uart_events_example_main.c
+++ b/examples/peripherals/uart_events/main/uart_events_example_main.c
@@ -46,7 +46,6 @@ static QueueHandle_t uart0_queue;
 static void uart_event_task(void *pvParameters)
 {
     uart_event_t event;
-    size_t buffered_size;
     uint8_t *dtmp = (uint8_t *) malloc(RD_BUF_SIZE);
 
     for (;;) {