diff --git a/nrf5/lcd_mono_fb.c b/nrf5/lcd_mono_fb.c
deleted file mode 100644
index 2ce900e6e8..0000000000
--- a/nrf5/lcd_mono_fb.c
+++ /dev/null
@@ -1,384 +0,0 @@
-/*
- * This file is part of the Micro Python project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2016 Glenn Ruben Bakke
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include <stdint.h>
-#include <string.h>
-#include <stdbool.h>
-
-#include "py/nlr.h"
-#include "py/obj.h"
-#include "py/runtime.h"
-
-#include "lcd_mono_fb.h"
-#include "font_petme128_8x8.h"
-
-#if MICROPY_PY_LCD_MONO_FB
-
-STATIC void lcd_enable_pixel(mp_obj_framebuf_t * p_framebuffer, uint16_t x, uint16_t y) {
-    uint16_t column  = (x / 8);
-    uint16_t line    = y;
-    uint8_t  bit_pos = x % 8;
-
-    p_framebuffer->fb_bytes[line * (p_framebuffer->bytes_stride) + column].byte |= (1 << bit_pos);
-    p_framebuffer->fb_dirty[y / 8].byte |= (uint8_t)(0x1 << y % 8);
-}
-
-STATIC void lcd_disable_pixel(mp_obj_framebuf_t * p_framebuffer, uint16_t x, uint16_t y) {
-    uint16_t column  = (x / 8);
-    uint16_t line    = y;
-    uint8_t  bit_pos = x % 8;
-
-    p_framebuffer->fb_bytes[line * (p_framebuffer->bytes_stride) + column].byte &= ~(1 << bit_pos);
-    p_framebuffer->fb_dirty[y/8].byte |= (uint8_t)(0x1 << y % 8);
-}
-
-STATIC void lcd_init(mp_obj_framebuf_t * p_framebuffer) {
-    p_framebuffer->fg_color = LCD_BLACK;
-    p_framebuffer->bg_color = LCD_WHITE;
-
-    memset(p_framebuffer->fb_bytes, 0x00, p_framebuffer->bytes_stride * p_framebuffer->height);
-    memset(p_framebuffer->fb_dirty, 0x00, p_framebuffer->dirty_stride);
-}
-
-STATIC void lcd_fg_color_set(mp_obj_framebuf_t * p_framebuffer, uint16_t color) {
-    p_framebuffer->fg_color = (color == 0) ? LCD_BLACK : LCD_WHITE;
-}
-
-#if 0
-STATIC uint16_t lcd_fg_color_get(mp_obj_framebuf_t * p_framebuffer) {
-    return p_framebuffer->fg_color;
-}
-#endif
-
-STATIC void lcd_bg_color_set(mp_obj_framebuf_t * p_framebuffer, uint16_t color) {
-    p_framebuffer->bg_color = (color == 0) ? LCD_BLACK : LCD_WHITE;
-}
-
-#if 0
-STATIC uint16_t lcd_bg_color_get(mp_obj_framebuf_t * p_framebuffer) {
-    return p_framebuffer->bg_color;
-}
-#endif
-
-void display_clear_screen(mp_obj_framebuf_t * p_framebuffer, uint8_t color) {
-
-    lcd_bg_color_set(p_framebuffer, color);
-    lcd_fg_color_set(p_framebuffer, !color);
-
-    if (p_framebuffer->bg_color == LCD_BLACK) {
-        memset(p_framebuffer->fb_bytes, 0x00, p_framebuffer->bytes_stride * p_framebuffer->height);
-    } else {
-        memset(p_framebuffer->fb_bytes, 0xFF, p_framebuffer->bytes_stride * p_framebuffer->height);
-    }
-    memset(p_framebuffer->fb_dirty, 0xFF, p_framebuffer->dirty_stride);
-}
-
-STATIC void lcd_print_char(mp_obj_framebuf_t * p_framebuffer, uint16_t x, uint16_t y, char ch) {
-    uint16_t col = x;
-    for (uint8_t i = 0; i < 8; i++) {
-
-        uint16_t current_col = col + (i * p_framebuffer->font_size);
-
-        for (uint8_t y_pos = 0; y_pos < 8; y_pos++) {
-            if ((((uint8_t)font_petme128_8x8[((ch - 32) * 8) + i]) >> y_pos) & 0x01) {
-                for (uint8_t s_w = 0; s_w < p_framebuffer->font_size; s_w++) {
-                    for (uint8_t s_h = 0; s_h < p_framebuffer->font_size; s_h++) {
-                        if (p_framebuffer->fg_color < LCD_WHITE) {
-                            lcd_disable_pixel(p_framebuffer,
-                                              current_col + s_w,
-                                              y + (y_pos * p_framebuffer->font_size) + s_h);
-                        } else {
-                            lcd_enable_pixel(p_framebuffer,
-                                             current_col + s_w,
-                                             y + (y_pos * p_framebuffer->font_size) + s_h);
-                        }
-                    }
-                }
-            } else {
-                for (uint8_t s_w = 0; s_w < p_framebuffer->font_size; s_w++) {
-                    for (uint8_t s_h = 0; s_h < p_framebuffer->font_size; s_h++) {
-                        if (p_framebuffer->bg_color < LCD_WHITE) {
-                            lcd_disable_pixel(p_framebuffer,
-                                              current_col + s_w,
-                                              y + (y_pos * p_framebuffer->font_size) + s_h);
-                        } else {
-                            lcd_enable_pixel(p_framebuffer,
-                                             current_col + s_w,
-                                             y + (y_pos * p_framebuffer->font_size) + s_h);
-                        }
-                    }
-                }
-            }
-        }
-    }
-}
-
-#if 0
-STATIC void lcd_font_size_set(mp_obj_framebuf_t * p_framebuffer, uint8_t size) {
-    m_font_size = size;
-}
-
-STATIC uint8_t lcd_font_size_get(mp_obj_framebuf_t * p_framebuffer) {
-    return m_font_size;
-}
-#endif
-
-void display_print_string(mp_obj_framebuf_t * p_framebuffer, uint16_t x, uint16_t y, const char * p_str) {
-    uint16_t str_len = strlen(p_str);
-    for (uint16_t i = 0; i < str_len; i++) {
-        lcd_print_char(p_framebuffer, x + (i * 8 * p_framebuffer->font_size), y, p_str[i]);
-    }
-}
-
-STATIC void lcd_pixel_draw(mp_obj_framebuf_t * p_framebuffer, uint16_t x, uint16_t y, uint16_t color) {
-    if (color < LCD_WHITE) {
-        lcd_disable_pixel(p_framebuffer, x, y);
-    } else {
-        lcd_enable_pixel(p_framebuffer, x, y);
-    }
-}
-
-void display_update(mp_obj_framebuf_t * p_framebuffer, bool refresh, lcd_update_line_callback_t c_callback) {
-    for (uint16_t i = 0; i < p_framebuffer->dirty_stride; i++) {
-        if (p_framebuffer->fb_dirty[i].byte != 0 || refresh) {
-            for (uint16_t b = 0; b < 8; b++) {
-                if ((((p_framebuffer->fb_dirty[i].byte >> b) & 0x01) == 1) || refresh) {
-                    uint16_t line_num = (i * 8) + b;
-
-                    if (c_callback != NULL)
-                    {
-                        if (p_framebuffer->fb_old == NULL) {
-                            c_callback(p_framebuffer,
-                                       line_num,
-                                       &p_framebuffer->fb_bytes[line_num * p_framebuffer->bytes_stride],
-                                       NULL);
-                        }
-                    } else {
-                        mp_obj_t args[4];
-                        mp_uint_t num_of_args = 3;
-                        args[0] = p_framebuffer;
-                        args[1] = MP_OBJ_NEW_SMALL_INT(line_num);
-
-                        if (refresh == false) {
-                            args[2] = mp_obj_new_bytearray_by_ref(p_framebuffer->bytes_stride,
-                                                                  &p_framebuffer->fb_bytes[line_num * p_framebuffer->bytes_stride]);
-                        } else {
-                            args[2] = mp_const_none;
-                        }
-
-                        if (p_framebuffer->fb_old != NULL) {
-                            args[3] = mp_obj_new_bytearray_by_ref(p_framebuffer->bytes_stride,
-                                                                  &p_framebuffer->fb_bytes[line_num * p_framebuffer->bytes_stride]);
-                            num_of_args = 4;
-                        }
-
-                        mp_call_function_n_kw(p_framebuffer->line_update_cb, num_of_args, 0, args);
-                    }
-
-                    // update old buffer
-                    if (p_framebuffer->fb_old != NULL) {
-                        memcpy(&p_framebuffer->fb_old[line_num * p_framebuffer->bytes_stride],
-                               &p_framebuffer->fb_bytes[line_num * p_framebuffer->bytes_stride],
-                               p_framebuffer->dirty_stride);
-                    }
-                }
-            }
-
-            if (refresh == false) {
-                p_framebuffer->fb_dirty[i].byte = 0x00;
-            }
-        }
-    }
-}
-
-mp_obj_t lcd_mono_fb_helper_make_new(mp_int_t width, mp_int_t height, mp_int_t vertical) {
-
-    mp_obj_framebuf_t *o = m_new_obj(mp_obj_framebuf_t);
-    o->base.type = &mp_type_object;
-
-    o->width = width;
-    o->height = height;
-
-    o->bytes_stride = o->width / 8;
-    o->dirty_stride = o->height / 8;
-
-    o->fb_bytes = m_new(fb_byte_t, (o->bytes_stride) * o->height);
-    o->fb_dirty = m_new(fb_byte_t, o->dirty_stride);
-
-    // default to not use double buffer
-    o->fb_old = NULL;
-
-    o->font_size = 1;
-
-    lcd_init(o);
-
-    return MP_OBJ_FROM_PTR(o);
-}
-
-STATIC mp_obj_t lcd_mono_fb_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
-    mp_arg_check_num(n_args, n_kw, 3, 4, false);
-
-    mp_obj_framebuf_t *o = m_new_obj(mp_obj_framebuf_t);
-    o->base.type = type;
-
-    o->line_update_cb = args[0];
-
-    o->width = mp_obj_get_int(args[1]);
-    o->height = mp_obj_get_int(args[2]);
-
-    o->bytes_stride = o->width / 8;
-    o->dirty_stride = o->height / 8;
-
-    o->fb_bytes = m_new(fb_byte_t, (o->bytes_stride) * o->height);
-    o->fb_dirty = m_new(fb_byte_t, o->dirty_stride);
-
-    // default to not use double buffer
-    o->fb_old = NULL;
-
-    o->font_size = 1;
-
-    if (n_args >= 4) {
-        if (mp_obj_is_true(args[3])) {
-            o->fb_old = m_new(fb_byte_t, (o->bytes_stride) * o->height);
-        }
-    }
-
-    lcd_init(o);
-
-    return MP_OBJ_FROM_PTR(o);
-}
-
-STATIC mp_obj_t lcd_mono_fb_fill(mp_obj_t self_in, mp_obj_t col_in) {
-    mp_obj_framebuf_t *self = MP_OBJ_TO_PTR(self_in);
-    mp_int_t col = mp_obj_get_int(col_in);
-
-    display_clear_screen(self, col);
-
-    return mp_const_none;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_2(lcd_mono_fb_fill_obj, lcd_mono_fb_fill);
-
-STATIC mp_obj_t lcd_mono_fb_pixel(size_t n_args, const mp_obj_t *args) {
-    mp_obj_framebuf_t *self = MP_OBJ_TO_PTR(args[0]);
-    mp_int_t x = mp_obj_get_int(args[1]);
-    mp_int_t y = mp_obj_get_int(args[2]);
-    mp_int_t color = mp_obj_get_int(args[3]);
-
-    lcd_pixel_draw(self, x, y, color);
-
-    return mp_const_none;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(lcd_mono_fb_pixel_obj, 3, 4, lcd_mono_fb_pixel);
-
-STATIC mp_obj_t lcd_mono_fb_scroll(mp_obj_t self_in, mp_obj_t xstep_in, mp_obj_t ystep_in) {
-#if 0
-    mp_obj_framebuf_t *self = MP_OBJ_TO_PTR(self_in);
-    mp_int_t xstep = mp_obj_get_int(xstep_in);
-    mp_int_t ystep = mp_obj_get_int(ystep_in);
-#endif
-    return mp_const_none;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_3(lcd_mono_fb_scroll_obj, lcd_mono_fb_scroll);
-
-STATIC mp_obj_t lcd_mono_fb_text(size_t n_args, const mp_obj_t *args) {
-    // extract arguments
-    mp_obj_framebuf_t *self = MP_OBJ_TO_PTR(args[0]);
-    const char *str = mp_obj_str_get_str(args[1]);
-    mp_int_t x0 = mp_obj_get_int(args[2]);
-    mp_int_t y0 = mp_obj_get_int(args[3]);
-
-    display_print_string(self, x0, y0, str);
-
-    return mp_const_none;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(lcd_mono_fb_text_obj, 4, 5, lcd_mono_fb_text);
-
-
-STATIC mp_obj_t lcd_mono_fb_show(mp_obj_t self_in) {
-    mp_obj_framebuf_t *self = MP_OBJ_TO_PTR(self_in);
-
-    display_update(self, false, NULL);
-
-    return mp_const_none;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(lcd_mono_fb_show_obj, lcd_mono_fb_show);
-
-STATIC mp_obj_t lcd_mono_fb_refresh(mp_obj_t self_in) {
-    mp_obj_framebuf_t *self = MP_OBJ_TO_PTR(self_in);
-
-    display_update(self, true, NULL);
-
-    return mp_const_none;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(lcd_mono_fb_refresh_obj, lcd_mono_fb_refresh);
-
-
-STATIC mp_obj_t lcd_mono_fb_del(mp_obj_t self_in) {
-    mp_obj_framebuf_t *self = MP_OBJ_TO_PTR(self_in);
-
-    m_free(self->fb_bytes);
-    m_free(self->fb_dirty);
-
-    if (self->fb_old != NULL) {
-        // free double buffer if used
-        m_free(self->fb_old);
-    }
-
-    return mp_const_none;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(lcd_mono_fb_del_obj, lcd_mono_fb_del);
-
-STATIC const mp_rom_map_elem_t lcd_mono_fb_locals_dict_table[] = {
-    { MP_ROM_QSTR(MP_QSTR___del__), MP_ROM_PTR(&lcd_mono_fb_del_obj) },
-    { MP_ROM_QSTR(MP_QSTR_fill), MP_ROM_PTR(&lcd_mono_fb_fill_obj) },
-    { MP_ROM_QSTR(MP_QSTR_pixel), MP_ROM_PTR(&lcd_mono_fb_pixel_obj) },
-    { MP_ROM_QSTR(MP_QSTR_scroll), MP_ROM_PTR(&lcd_mono_fb_scroll_obj) },
-    { MP_ROM_QSTR(MP_QSTR_text), MP_ROM_PTR(&lcd_mono_fb_text_obj) },
-    { MP_ROM_QSTR(MP_QSTR_show), MP_ROM_PTR(&lcd_mono_fb_show_obj) },
-    { MP_ROM_QSTR(MP_QSTR_refresh), MP_ROM_PTR(&lcd_mono_fb_refresh_obj) },
-};
-STATIC MP_DEFINE_CONST_DICT(lcd_mono_fb_locals_dict, lcd_mono_fb_locals_dict_table);
-
-STATIC const mp_obj_type_t mp_type_lcd_mono_fb = {
-    { &mp_type_type },
-    .name = MP_QSTR_MonoFB,
-    .make_new = lcd_mono_fb_make_new,
-    .locals_dict = (mp_obj_t)&lcd_mono_fb_locals_dict,
-};
-
-STATIC const mp_rom_map_elem_t lcd_mono_fb_module_globals_table[] = {
-    { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_lcd_mono_fb) },
-    { MP_ROM_QSTR(MP_QSTR_MonoFB), MP_ROM_PTR(&mp_type_lcd_mono_fb) },
-};
-
-STATIC MP_DEFINE_CONST_DICT(lcd_mono_fb_module_globals, lcd_mono_fb_module_globals_table);
-
-const mp_obj_module_t mp_module_lcd_mono_fb = {
-    .base = { &mp_type_module },
-    .globals = (mp_obj_dict_t*)&lcd_mono_fb_module_globals,
-};
-
-#endif // MICROPY_PY_LCD_MONO_FB
diff --git a/nrf5/lcd_mono_fb.h b/nrf5/lcd_mono_fb.h
deleted file mode 100644
index 8ab748a58e..0000000000
--- a/nrf5/lcd_mono_fb.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * This file is part of the Micro Python project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2016 Glenn Ruben Bakke
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#ifndef LCD_MONO_FB_H__
-#define LCD_MONO_FB_H__
-
-extern const mp_obj_module_t mp_module_lcd_mono_fb;
-
-#include <stdint.h>
-
-#define LCD_BLACK 0
-#define LCD_WHITE 1
-
-typedef struct {
-    uint8_t bit0 : 1;
-    uint8_t bit1 : 1;
-    uint8_t bit2 : 1;
-    uint8_t bit3 : 1;
-    uint8_t bit4 : 1;
-    uint8_t bit5 : 1;
-    uint8_t bit6 : 1;
-    uint8_t bit7 : 1;
-} bits_t;
-
-typedef struct {
-    union {
-        uint8_t byte;
-        bits_t  bits;
-    };
-} fb_byte_t;
-
-typedef struct {
-    mp_obj_base_t base;
-    fb_byte_t * fb_bytes;
-    fb_byte_t * fb_old;
-    fb_byte_t * fb_dirty;
-    uint16_t  height;
-    uint16_t  width;
-    mp_uint_t bytes_stride;
-    mp_uint_t dirty_stride;
-    mp_obj_t  line_update_cb;
-    mp_uint_t bg_color;
-    mp_uint_t fg_color;
-    mp_uint_t font_size;
-} mp_obj_framebuf_t;
-
-
-typedef void (*lcd_update_line_callback_t)(mp_obj_framebuf_t * p_framebuffer,
-                                           uint16_t            line,
-                                           fb_byte_t *         p_new,
-                                           fb_byte_t *         p_old);
-
-// Functions for other drivers to use to create framebuffer instances using c.
-
-mp_obj_t lcd_mono_fb_helper_make_new(mp_int_t width, mp_int_t height, mp_int_t direction);
-
-void display_clear_screen(mp_obj_framebuf_t * p_framebuffer, uint8_t color);
-
-void display_update(mp_obj_framebuf_t *        p_framebuffer,
-                    bool                       refresh,
-                    lcd_update_line_callback_t c_callback);
-
-void display_print_string(mp_obj_framebuf_t * p_framebuffer,
-                          uint16_t            x,
-                          uint16_t            y,
-                          const char * p_str);
-
-#endif