diff --git a/micropython/modules/pico_scroll/pico_scroll.cpp b/micropython/modules/pico_scroll/pico_scroll.cpp
index 11e3937d..b74e59f2 100644
--- a/micropython/modules/pico_scroll/pico_scroll.cpp
+++ b/micropython/modules/pico_scroll/pico_scroll.cpp
@@ -41,136 +41,133 @@ mp_obj_t picoscroll_update() {
 }
 
 mp_obj_t picoscroll_set_pixel(mp_obj_t x_obj, mp_obj_t y_obj, mp_obj_t v_obj) {
-    if(scroll != nullptr) {
+    if (scroll != nullptr) {
         int x = mp_obj_get_int(x_obj);
         int y = mp_obj_get_int(y_obj);
         int val = mp_obj_get_int(v_obj);
 
-        if(x < 0 || x >= PicoScroll::WIDTH || y < 0 || y >= PicoScroll::HEIGHT)
+        if (x < 0 || x >= PicoScroll::WIDTH || y < 0 || y >= PicoScroll::HEIGHT)
             mp_raise_ValueError("x or y out of range.");
         else {
-            if(val < 0 || val > 255)
+            if (val < 0 || val > 255)
                 mp_raise_ValueError("val out of range. Expected 0 to 255");
             else
                 scroll->set_pixel(x, y, val);
         }
-    }
-    else
+    } else
         mp_raise_msg(&mp_type_RuntimeError, NOT_INITIALISED_MSG);
 
     return mp_const_none;
 }
 
-
-  mp_obj_t picoscroll_show_text(mp_obj_t text_obj, mp_obj_t brightness_obj, mp_obj_t offset_obj) {
-    if(scroll != nullptr) {
+mp_obj_t picoscroll_show_text(mp_obj_t text_obj, mp_obj_t brightness_obj,
+                              mp_obj_t offset_obj) {
+    if (scroll != nullptr) {
         mp_buffer_info_t bufinfo;
-	unsigned char * buffer;
-	int text_len, bfr_len;
-	
-	mp_get_buffer_raise(text_obj, &bufinfo, MP_BUFFER_READ);
-	unsigned char * values = (unsigned char *) bufinfo.buf;
+        unsigned char *buffer;
+        int text_len, bfr_len;
+
+        mp_get_buffer_raise(text_obj, &bufinfo, MP_BUFFER_READ);
+        unsigned char *values = (unsigned char *)bufinfo.buf;
         int brightness = mp_obj_get_int(brightness_obj);
         int offset = mp_obj_get_int(offset_obj);
-	
-	text_len = bufinfo.len;
-	bfr_len = 6 * text_len;
-	
-	int width = PicoScroll::WIDTH;
-	int height = PicoScroll::HEIGHT;
 
-	// clear the scroll, so only need to write visible bytes
-	scroll->clear();
+        text_len = bufinfo.len;
+        bfr_len = 6 * text_len;
 
-	if ((offset < -width) || (offset > bfr_len)) {
-	    return mp_const_none;
-	}
+        int width = PicoScroll::WIDTH;
+        int height = PicoScroll::HEIGHT;
 
-	// allocate buffer, render text, free buffer #TODO probably can do
-	// without the buffer here
-	
-	buffer = (unsigned char *) m_malloc (sizeof(unsigned char) * bfr_len);
-	render(values, text_len, buffer, bfr_len);
-	
-	for (int x = 0; x < width; x++) {
-	    int k = offset + x;
-	    if ((k >= 0) && (k < bfr_len)) {
-	        unsigned char col = buffer[k];
-		for (int y = 0; y < height; y++) {
-		    int val = brightness * ((col >> y) & 1);
-		    scroll->set_pixel(x, y, val);
-		}
-	    }
-	}
-	m_free(buffer);
+        // clear the scroll, so only need to write visible bytes
+        scroll->clear();
+
+        if ((offset < -width) || (offset > bfr_len)) {
+            return mp_const_none;
+        }
+
+        // allocate buffer, render text, free buffer #TODO probably can do
+        // without the buffer here
+
+        buffer = (unsigned char *)m_malloc(sizeof(unsigned char) * bfr_len);
+        render(values, text_len, buffer, bfr_len);
+
+        for (int x = 0; x < width; x++) {
+            int k = offset + x;
+            if ((k >= 0) && (k < bfr_len)) {
+                unsigned char col = buffer[k];
+                for (int y = 0; y < height; y++) {
+                    int val = brightness * ((col >> y) & 1);
+                    scroll->set_pixel(x, y, val);
+                }
+            }
+        }
+        m_free(buffer);
     } else {
         mp_raise_msg(&mp_type_RuntimeError, NOT_INITIALISED_MSG);
     }
 
     return mp_const_none;
 }
-	
-  
-  
+
 mp_obj_t picoscroll_set_pixels(mp_obj_t image_obj) {
-    if(scroll != nullptr) {
+    if (scroll != nullptr) {
         mp_buffer_info_t bufinfo;
-	mp_get_buffer_raise(image_obj, &bufinfo, MP_BUFFER_RW);
+        mp_get_buffer_raise(image_obj, &bufinfo, MP_BUFFER_RW);
 
-	if (bufinfo.len < (PicoScroll::WIDTH * PicoScroll::HEIGHT)) {
-	    mp_raise_msg(&mp_type_IndexError, BUFFER_TOO_SMALL_MSG);
-	}
+        if (bufinfo.len < (PicoScroll::WIDTH * PicoScroll::HEIGHT)) {
+            mp_raise_msg(&mp_type_IndexError, BUFFER_TOO_SMALL_MSG);
+        }
 
-	unsigned char * values = (unsigned char *) bufinfo.buf;
+        unsigned char *values = (unsigned char *)bufinfo.buf;
 
         for (int y = 0; y < PicoScroll::HEIGHT; y++) {
-	    for (int x = 0; x < PicoScroll::WIDTH; x++) {
-	        int val = values[y * PicoScroll::WIDTH + x];
+            for (int x = 0; x < PicoScroll::WIDTH; x++) {
+                int val = values[y * PicoScroll::WIDTH + x];
                 scroll->set_pixel(x, y, val);
-	    }
+            }
         }
-    }
-    else
+    } else
         mp_raise_msg(&mp_type_RuntimeError, NOT_INITIALISED_MSG);
 
     return mp_const_none;
 }
 
-mp_obj_t picoscroll_show_bitmap_1d(mp_obj_t bitmap_obj, mp_obj_t brightness_obj, mp_obj_t offset_obj) {
-    if(scroll != nullptr) {
+mp_obj_t picoscroll_show_bitmap_1d(mp_obj_t bitmap_obj, mp_obj_t brightness_obj,
+                                   mp_obj_t offset_obj) {
+    if (scroll != nullptr) {
         mp_buffer_info_t bufinfo;
-	mp_get_buffer_raise(bitmap_obj, &bufinfo, MP_BUFFER_RW);
+        mp_get_buffer_raise(bitmap_obj, &bufinfo, MP_BUFFER_RW);
         int offset = mp_obj_get_int(offset_obj);
         int brightness = mp_obj_get_int(brightness_obj);
-	int length = bufinfo.len;
-	int width = PicoScroll::WIDTH;
-	int height = PicoScroll::HEIGHT;
+        int length = bufinfo.len;
+        int width = PicoScroll::WIDTH;
+        int height = PicoScroll::HEIGHT;
 
-	// this obviously shouldn't happen as the scroll is 17x7 pixels
-	// would fall off end of byte if this the case
-	if (height > 8) {
-	    mp_raise_msg(&mp_type_RuntimeError, INCORRECT_SIZE_MSG);
-	}
+        // this obviously shouldn't happen as the scroll is 17x7 pixels
+        // would fall off end of byte if this the case
+        if (height > 8) {
+            mp_raise_msg(&mp_type_RuntimeError, INCORRECT_SIZE_MSG);
+        }
 
-	unsigned char * values = (unsigned char *) bufinfo.buf;
+        unsigned char *values = (unsigned char *)bufinfo.buf;
 
-	// clear the scroll, so only need to write visible bytes
-	scroll->clear();
+        // clear the scroll, so only need to write visible bytes
+        scroll->clear();
 
-	if ((offset < -width) || (offset > length)) {
-	    return mp_const_none;
-	}
+        if ((offset < -width) || (offset > length)) {
+            return mp_const_none;
+        }
 
-	for (int x = 0; x < width; x++) {
-	    int k = offset + x;
-	    if ((k >= 0) && (k < length)) {
-	        unsigned char col = values[k];
-		for (int y = 0; y < height; y++) {
-		    int val = brightness * ((col >> y) & 1);
-		    scroll->set_pixel(x, y, val);
-		}
-	    }
-	}
+        for (int x = 0; x < width; x++) {
+            int k = offset + x;
+            if ((k >= 0) && (k < length)) {
+                unsigned char col = values[k];
+                for (int y = 0; y < height; y++) {
+                    int val = brightness * ((col >> y) & 1);
+                    scroll->set_pixel(x, y, val);
+                }
+            }
+        }
     } else {
         mp_raise_msg(&mp_type_RuntimeError, NOT_INITIALISED_MSG);
     }
@@ -179,7 +176,7 @@ mp_obj_t picoscroll_show_bitmap_1d(mp_obj_t bitmap_obj, mp_obj_t brightness_obj,
 }
 
 mp_obj_t picoscroll_clear() {
-    if(scroll != nullptr)
+    if (scroll != nullptr)
         scroll->clear();
     else
         mp_raise_msg(&mp_type_RuntimeError, NOT_INITIALISED_MSG);