diff --git a/extras/ds3231/ds3231.c b/extras/ds3231/ds3231.c
index 84e340d..f3f74f0 100644
--- a/extras/ds3231/ds3231.c
+++ b/extras/ds3231/ds3231.c
@@ -216,7 +216,7 @@ bool ds3231_getRawTemp(int16_t *temp)
     uint8_t data[2];
 
     data[0] = DS3231_ADDR_TEMP;
-    if (!ds3231_send(DS3231_ADDR_TEMP,data, 2))
+    if (!ds3231_recv(DS3231_ADDR_TEMP,data, 2))
     {
         *temp = (int16_t)(int8_t)data[0] << 2 | data[1] >> 6;
         return true;
diff --git a/extras/i2c/i2c.c b/extras/i2c/i2c.c
index c240e0b..1a37843 100644
--- a/extras/i2c/i2c.c
+++ b/extras/i2c/i2c.c
@@ -308,7 +308,7 @@ int i2c_slave_read(uint8_t slave_addr, uint8_t *data, uint8_t *buf, uint32_t len
         buf++;
         len--;
     }
-    if (i2c_stop())
+    if (!i2c_stop())
         goto error;
     flag = false ; // Bus free
     return 0;
diff --git a/extras/ssd1306/ssd1306.c b/extras/ssd1306/ssd1306.c
index cb3e0f6..de7ce58 100644
--- a/extras/ssd1306/ssd1306.c
+++ b/extras/ssd1306/ssd1306.c
@@ -256,6 +256,7 @@ int ssd1306_load_frame_buffer(const ssd1306_t *dev, uint8_t buf[])
             {
                 if(dev->screen == SH1106_SCREEN && i%dev->width == 0) sh1106_go_coordinate(dev,0,i/dev->width);
                 i2c_send(dev, 0x40, buf ? &buf[i] : tab, 16);
+                i+=15 ;
             }
             break;
 #endif