diff --git a/pico-st7789/src/canvas.rs b/pico-st7789/src/canvas.rs
index cb2d05b..7a16821 100644
--- a/pico-st7789/src/canvas.rs
+++ b/pico-st7789/src/canvas.rs
@@ -8,118 +8,55 @@
 // e       c
 //   d d d
 
-use alloc::collections::btree_map::BTreeMap;
+use crate::font::{Font, Glyph};
 
-/*
-*/
-
-pub struct RGB { pub r: u8, pub g: u8, pub b: u8 }
+pub struct RGB {
+    pub r: u8,
+    pub g: u8,
+    pub b: u8,
+}
 
 pub trait Canvas {
     fn set_pixel(&mut self, x: usize, y: usize, color: &RGB);
 
+    fn fill(&mut self, x1: usize, y1: usize, x2: usize, y2: usize, color: &RGB) {
+        for x in x1..x2 + 1 {
+            for y in y1..y2 + 1 {
+                self.set_pixel(x, y, color);
+            }
+        }
+    }
+
     fn square(&mut self, x1: usize, y1: usize, x2: usize, y2: usize, color: &RGB) {
-        for x in x1..x2+1 {
+        for x in x1..x2 + 1 {
             self.set_pixel(x, y1, color);
         }
-        for x in x1..x2+1 {
+        for x in x1..x2 + 1 {
             self.set_pixel(x, y2, color);
         }
-        for y in y1..y2+1 {
+        for y in y1..y2 + 1 {
             self.set_pixel(x1, y, color);
         }
-        for y in y1..y2+1 {
+        for y in y1..y2 + 1 {
             self.set_pixel(x2, y, color);
         }
     }
 }
 
-/*
-pub const DIGIT_WIDTH: usize = 5;
-pub const DIGIT_HEIGHT: usize = 9;
-
-pub const ZERO_SEVEN_SEGMENT: [bool; 7] = [true, true, true, true, true, true, false];
-
-pub const ONE_SEVEN_SEGMENT: [bool; 7] = [false, true, true, false, false, false, false];
-
-pub const TWO_SEVEN_SEGMENT: [bool; 7] = [true, true, false, true, true, false, true];
-
-pub const THREE_SEVEN_SEGMENT: [bool; 7] = [true, true, true, true, false, false, true];
-
-pub const FOUR_SEVEN_SEGMENT: [bool; 7] = [false, true, true, false, false, true, true];
-
-pub const FIVE_SEVEN_SEGMENT: [bool; 7] = [true, false, true, true, false, true, true];
-
-pub const SIX_SEVEN_SEGMENT: [bool; 7] = [true, false, true, true, true, true, true];
-
-pub const SEVEN_SEVEN_SEGMENT: [bool; 7] = [true, true, true, false, false, false, false];
-
-pub const EIGHT_SEVEN_SEGMENT: [bool; 7] = [true, true, true, true, true, true, true];
-
-pub const NINE_SEVEN_SEGMENT: [bool; 7] = [true, true, true, false, false, true, true];
-
-pub const SEVEN_SEGMENT_FONT: [[bool; 7]; 10] = [
-    ZERO_SEVEN_SEGMENT,
-    ONE_SEVEN_SEGMENT,
-    TWO_SEVEN_SEGMENT,
-    THREE_SEVEN_SEGMENT,
-    FOUR_SEVEN_SEGMENT,
-    FIVE_SEVEN_SEGMENT,
-    SIX_SEVEN_SEGMENT,
-    SEVEN_SEVEN_SEGMENT,
-    EIGHT_SEVEN_SEGMENT,
-    NINE_SEVEN_SEGMENT,
-];
-
-pub fn write_pixel(framebuf: &mut [u8], width: usize, x: usize, y: usize, color: (u8, u8, u8)) {
-    framebuf[(y * width + x) * 3 + 0] = color.0 << 2;
-    framebuf[(y * width + x) * 3 + 1] = color.1 << 2;
-    framebuf[(y * width + x) * 3 + 2] = color.2 << 2;
-}
-
-pub fn draw_seven_segment(
-    digit: u8,
-    frame: &mut [u8],
-    width: usize,
-    x: usize,
-    y: usize,
-    color: (u8, u8, u8),
-) {
-    let segments = SEVEN_SEGMENT_FONT[digit as usize];
-    if segments[0] {
-        write_pixel(frame, width, x + 1, y, color);
-        write_pixel(frame, width, x + 2, y, color);
-        write_pixel(frame, width, x + 3, y, color);
-    }
-    if segments[1] {
-        write_pixel(frame, width, x + 4, y + 1, color);
-        write_pixel(frame, width, x + 4, y + 2, color);
-        write_pixel(frame, width, x + 4, y + 3, color);
-    }
-    if segments[2] {
-        write_pixel(frame, width, x + 4, y + 5, color);
-        write_pixel(frame, width, x + 4, y + 6, color);
-        write_pixel(frame, width, x + 4, y + 7, color);
-    }
-    if segments[3] {
-        write_pixel(frame, width, x + 1, y + 8, color);
-        write_pixel(frame, width, x + 2, y + 8, color);
-        write_pixel(frame, width, x + 3, y + 8, color);
-    }
-    if segments[4] {
-        write_pixel(frame, width, x, y + 5, color);
-        write_pixel(frame, width, x, y + 6, color);
-        write_pixel(frame, width, x, y + 7, color);
-    }
-    if segments[5] {
-        write_pixel(frame, width, x, y + 1, color);
-        write_pixel(frame, width, x, y + 2, color);
-        write_pixel(frame, width, x, y + 3, color);
-    }
-    if segments[6] {
-        write_pixel(frame, width, x + 1, y + 4, color);
-        write_pixel(frame, width, x + 2, y + 4, color);
-        write_pixel(frame, width, x + 3, y + 4, color);
+pub fn print<A>(
+    canvas: &mut impl Canvas,
+    font: &impl Font<A>,
+    sx: usize,
+    sy: usize,
+    text: &str,
+    color: &RGB,
+) where
+    A: Glyph,
+{
+    let mut x = sx;
+    for c in text.chars().map(|c| font.glyph(c)) {
+        c.draw(canvas, x, sy, color);
+        let (dx, _) = c.extents();
+        x = x + dx + 1;
     }
 }
-*/
diff --git a/pico-st7789/src/font/bits_5_8.rs b/pico-st7789/src/font/bits_5_8.rs
new file mode 100644
index 0000000..ecada60
--- /dev/null
+++ b/pico-st7789/src/font/bits_5_8.rs
@@ -0,0 +1,513 @@
+use alloc::collections::btree_map::BTreeMap;
+
+use crate::canvas::{Canvas, RGB};
+
+use super::{Font, Glyph};
+
+pub struct BitmapGlyph([u8; 7]);
+
+pub struct BitmapFont(BTreeMap<char, BitmapGlyph>);
+
+impl BitmapFont {
+    pub fn new() -> Self {
+        let mut font = BTreeMap::new();
+        font.insert(' ', BitmapGlyph([
+            0b00000,
+            0b00000,
+            0b00000,
+            0b00000,
+            0b00000,
+            0b00000,
+            0b00000,
+        ]));
+        font.insert(
+            ':',
+            BitmapGlyph([
+                0b00000,
+                0b00100,
+                0b00100,
+                0b00000,
+                0b00100,
+                0b00100,
+                0b00000,
+            ]),
+        );
+        font.insert(
+            '/',
+            BitmapGlyph([
+                0b00001,
+                0b00010,
+                0b00010,
+                0b00100,
+                0b01000,
+                0b01000,
+                0b10000,
+            ]),
+        );
+        font.insert(
+            '0',
+            BitmapGlyph([
+                0b01110,
+                0b10001,
+                0b10001,
+                0b10101,
+                0b10001,
+                0b10001,
+                0b01110,
+            ]),
+        );
+        font.insert(
+            '1',
+            BitmapGlyph([
+                0b00001,
+                0b00011,
+                0b00101,
+                0b00001,
+                0b00001,
+                0b00001,
+                0b00001,
+            ]),
+        );
+        font.insert(
+            '2',
+            BitmapGlyph([
+                0b01110,
+                0b10001,
+                0b00001,
+                0b00010,
+                0b00100,
+                0b01000,
+                0b11111,
+            ]),
+        );
+        font.insert(
+            '3',
+            BitmapGlyph([
+                0b01110,
+                0b10001,
+                0b00001,
+                0b01110,
+                0b00001,
+                0b10001,
+                0b01110,
+            ]),
+        );
+        font.insert(
+            '4',
+            BitmapGlyph([
+                0b10001,
+                0b10001,
+                0b10001,
+                0b11111,
+                0b00001,
+                0b00001,
+                0b00001,
+            ]),
+        );
+        font.insert(
+            '5',
+            BitmapGlyph([
+                0b11111,
+                0b10000,
+                0b10000,
+                0b11111,
+                0b00001,
+                0b10001,
+                0b01110,
+            ]),
+        );
+        font.insert(
+            '6',
+            BitmapGlyph([
+                0b01110,
+                0b10001,
+                0b10000,
+                0b11110,
+                0b10001,
+                0b10001,
+                0b01110,
+            ]),
+        );
+        font.insert(
+            '7',
+            BitmapGlyph([
+                0b11111,
+                0b00001,
+                0b00010,
+                0b00110,
+                0b00100,
+                0b01000,
+                0b01000,
+            ]),
+        );
+        font.insert(
+            '8',
+            BitmapGlyph([
+                0b01110,
+                0b10001,
+                0b10001,
+                0b01110,
+                0b10001,
+                0b10001,
+                0b01110,
+            ]),
+        );
+        font.insert(
+            '9',
+            BitmapGlyph([
+                0b01110,
+                0b10001,
+                0b10001,
+                0b01111,
+                0b00001,
+                0b00001,
+                0b01110,
+            ]),
+        );
+        font.insert(
+            'A',
+            BitmapGlyph([
+                0b00100,
+                0b01010,
+                0b01010,
+                0b10001,
+                0b11111,
+                0b10001,
+                0b10001,
+            ]),
+        );
+        font.insert(
+            'B',
+            BitmapGlyph([
+                0b11110,
+                0b10001,
+                0b10001,
+                0b1111 ,
+                0b10001,
+                0b10001,
+                0b11110,
+            ]),
+        );
+        font.insert(
+            'C',
+            BitmapGlyph([
+                0b01110,
+                0b10001,
+                0b10000,
+                0b10000,
+                0b10000,
+                0b10001,
+                0b01110,
+            ]),
+        );
+        font.insert(
+            'D',
+            BitmapGlyph([
+                0b11110,
+                0b10001,
+                0b10001,
+                0b10001,
+                0b10001,
+                0b10001,
+                0b11110,
+            ]),
+        );
+        font.insert(
+            'E',
+            BitmapGlyph([
+                0b11111,
+                0b10000,
+                0b10000,
+                0b11111,
+                0b10000,
+                0b10000,
+                0b11111,
+            ]),
+        );
+        font.insert(
+            'F',
+            BitmapGlyph([
+                0b11111,
+                0b10000,
+                0b10000,
+                0b11110,
+                0b10000,
+                0b10000,
+                0b10000,
+            ]),
+        );
+        font.insert(
+            'G',
+            BitmapGlyph([
+                0b01110,
+                0b10001,
+                0b10000,
+                0b10011,
+                0b10001,
+                0b10001,
+                0b01110,
+            ]),
+        );
+        font.insert(
+            'H',
+            BitmapGlyph([
+                0b10001,
+                0b10001,
+                0b10001,
+                0b11111,
+                0b10001,
+                0b10001,
+                0b10001,
+            ]),
+        );
+        font.insert(
+            'I',
+            BitmapGlyph([
+                0b11111,
+                0b00100,
+                0b00100,
+                0b00100,
+                0b00100,
+                0b00100,
+                0b11111,
+            ]),
+        );
+        font.insert(
+            'J',
+            BitmapGlyph([
+                0b00111,
+                0b00001,
+                0b00001,
+                0b00001,
+                0b00001,
+                0b10001,
+                0b01110,
+            ]),
+        );
+        font.insert(
+            'K',
+            BitmapGlyph([
+                0b10001,
+                0b10010,
+                0b10100,
+                0b11000,
+                0b10100,
+                0b10010,
+                0b10001,
+            ]),
+        );
+        font.insert(
+            'L',
+            BitmapGlyph([
+                0b10000,
+                0b10000,
+                0b10000,
+                0b10000,
+                0b10000,
+                0b10000,
+                0b11111,
+            ]),
+        );
+        font.insert(
+            'M',
+            BitmapGlyph([
+                0b10001,
+                0b11011,
+                0b10101,
+                0b10001,
+                0b10001,
+                0b10001,
+                0b10001,
+            ]),
+        );
+        font.insert(
+            'N',
+            BitmapGlyph([
+                0b10001,
+                0b11001,
+                0b11001,
+                0b10101,
+                0b10011,
+                0b10011,
+                0b10001,
+            ]),
+        );
+        font.insert(
+            'O',
+            BitmapGlyph([
+                0b01110,
+                0b10001,
+                0b10001,
+                0b10001,
+                0b10001,
+                0b10001,
+                0b01110,
+            ]),
+        );
+        font.insert(
+            'P',
+            BitmapGlyph([
+                0b11110,
+                0b10001,
+                0b10001,
+                0b11110,
+                0b10000,
+                0b10000,
+                0b10000,
+            ]),
+        );
+        font.insert(
+            'Q',
+            BitmapGlyph([
+                0b01110,
+                0b10001,
+                0b10001,
+                0b10001,
+                0b10101,
+                0b10011,
+                0b01110,
+            ]),
+        );
+        font.insert(
+            'R',
+            BitmapGlyph([
+                0b11110,
+                0b10001,
+                0b10001,
+                0b11110,
+                0b10100,
+                0b10010,
+                0b10001,
+            ]),
+        );
+        font.insert(
+            'S',
+            BitmapGlyph([
+                0b01110,
+                0b10001,
+                0b10000,
+                0b01110,
+                0b00001,
+                0b10001,
+                0b01110,
+            ]),
+        );
+        font.insert(
+            'T',
+            BitmapGlyph([
+                0b11111,
+                0b00100,
+                0b00100,
+                0b00100,
+                0b00100,
+                0b00100,
+                0b00100,
+            ]),
+        );
+        font.insert(
+            'U',
+            BitmapGlyph([
+                0b10001,
+                0b10001,
+                0b10001,
+                0b10001,
+                0b10001,
+                0b10001,
+                0b01110,
+            ]),
+        );
+        font.insert(
+            'V',
+            BitmapGlyph([
+                0b10001,
+                0b10001,
+                0b10001,
+                0b10001,
+                0b01010,
+                0b01010,
+                0b00100,
+            ]),
+        );
+        font.insert(
+            'W',
+            BitmapGlyph([
+                0b10001,
+                0b10001,
+                0b10001,
+                0b10001,
+                0b10101,
+                0b10101,
+                0b01010,
+            ]),
+        );
+        font.insert(
+            'X',
+            BitmapGlyph([
+                0b10001,
+                0b10001,
+                0b01010,
+                0b00100,
+                0b01010,
+                0b10001,
+                0b10001,
+            ]),
+        );
+        font.insert(
+            'Y',
+            BitmapGlyph([
+                0b10001,
+                0b10001,
+                0b01010,
+                0b00100,
+                0b00100,
+                0b00100,
+                0b00100,
+            ]),
+        );
+        font.insert(
+            'Z',
+            BitmapGlyph([
+                0b11111,
+                0b00001,
+                0b00010,
+                0b00100,
+                0b01000,
+                0b10000,
+                0b11111,
+            ]),
+        );
+        Self(font)
+    }
+}
+
+impl Font<BitmapGlyph> for BitmapFont {
+    fn glyph(&self, c: char) -> &BitmapGlyph {
+        self.0.get(&c).unwrap_or(self.0.get(&' ').unwrap())
+    }
+}
+
+impl Glyph for BitmapGlyph {
+    fn draw(&self, canvas: &mut impl Canvas, x: usize, y: usize, color: &RGB) {
+        for row in 0..7 {
+            if self.0[row] & (1 << 4) > 0 {
+                canvas.set_pixel(x, y + row, color);
+            }
+            if self.0[row] & (1 << 3) > 0 {
+                canvas.set_pixel(x + 1, y + row, color);
+            }
+            if self.0[row] & (1 << 2) > 0 {
+                canvas.set_pixel(x + 2, y + row, color);
+            }
+            if self.0[row] & (1 << 1) > 0 {
+                canvas.set_pixel(x + 3, y + row, color);
+            }
+            if self.0[row] & 1 > 0 {
+                canvas.set_pixel(x + 4, y + row, color);
+            }
+        }
+    }
+
+    fn extents(&self) -> (usize, usize) {
+        (5, 7)
+    }
+}
diff --git a/pico-st7789/src/font/mod.rs b/pico-st7789/src/font/mod.rs
index 126176d..f20065b 100644
--- a/pico-st7789/src/font/mod.rs
+++ b/pico-st7789/src/font/mod.rs
@@ -1,5 +1,11 @@
 use crate::canvas::{Canvas, RGB};
 
+mod bits_5_8;
+pub use bits_5_8::BitmapFont;
+
+mod seven_segment;
+pub use seven_segment::SevenSegmentFont;
+
 mod sixteen_segment;
 pub use sixteen_segment::SixteenSegmentFont;
 
@@ -9,5 +15,6 @@ pub trait Font<A> {
 
 pub trait Glyph {
     fn draw(&self, canvas: &mut impl Canvas, x: usize, y: usize, color: &RGB);
+    fn extents(&self) -> (usize, usize);
 }
 
diff --git a/pico-st7789/src/font/seven_segment.rs b/pico-st7789/src/font/seven_segment.rs
new file mode 100644
index 0000000..94dd8cd
--- /dev/null
+++ b/pico-st7789/src/font/seven_segment.rs
@@ -0,0 +1,211 @@
+use alloc::collections::btree_map::BTreeMap;
+use bitflags::bitflags;
+
+use crate::canvas::{Canvas, RGB};
+
+use super::{Font, Glyph};
+
+// Seven Segments
+//
+//   a a a
+// f       b
+// f       b
+// f       b
+//   g g g
+// e       c
+// e       c
+// e       c
+//   d d d
+
+bitflags! {
+    pub struct SevenSegmentGlyph: u8 {
+        const NONE = 0;
+        const A = 0x01;
+        const B = 0x01 << 1;
+        const C = 0x01 << 2;
+        const D = 0x01 << 3;
+        const E = 0x01 << 4;
+        const F = 0x01 << 5;
+        const G = 0x01 << 6;
+        const DOT = 0x01 << 7;
+    }
+}
+
+pub struct SevenSegmentFont(BTreeMap<char, SevenSegmentGlyph>);
+
+impl SevenSegmentFont {
+    pub fn new() -> Self {
+        let mut font = BTreeMap::new();
+        font.insert(' ', SevenSegmentGlyph::NONE);
+        font.insert(
+            '0',
+            SevenSegmentGlyph::A
+                | SevenSegmentGlyph::B
+                | SevenSegmentGlyph::C
+                | SevenSegmentGlyph::D
+                | SevenSegmentGlyph::E
+                | SevenSegmentGlyph::F,
+        );
+        font.insert('1', SevenSegmentGlyph::B | SevenSegmentGlyph::C);
+        font.insert(
+            '2',
+            SevenSegmentGlyph::A
+                | SevenSegmentGlyph::B
+                | SevenSegmentGlyph::D
+                | SevenSegmentGlyph::E
+                | SevenSegmentGlyph::G,
+        );
+        font.insert(
+            '3',
+            SevenSegmentGlyph::A
+                | SevenSegmentGlyph::B
+                | SevenSegmentGlyph::C
+                | SevenSegmentGlyph::G
+                | SevenSegmentGlyph::D,
+        );
+        font.insert(
+            '4',
+            SevenSegmentGlyph::B
+                | SevenSegmentGlyph::C
+                | SevenSegmentGlyph::F
+                | SevenSegmentGlyph::G,
+        );
+        font.insert(
+            '5',
+            SevenSegmentGlyph::A
+                | SevenSegmentGlyph::C
+                | SevenSegmentGlyph::D
+                | SevenSegmentGlyph::F
+                | SevenSegmentGlyph::G,
+        );
+        font.insert(
+            '6',
+            SevenSegmentGlyph::A
+                | SevenSegmentGlyph::E
+                | SevenSegmentGlyph::F
+                | SevenSegmentGlyph::G
+                | SevenSegmentGlyph::C
+                | SevenSegmentGlyph::D,
+        );
+        font.insert(
+            '7',
+            SevenSegmentGlyph::A | SevenSegmentGlyph::B | SevenSegmentGlyph::C,
+        );
+        font.insert(
+            '8',
+            SevenSegmentGlyph::A
+                | SevenSegmentGlyph::B
+                | SevenSegmentGlyph::C
+                | SevenSegmentGlyph::D
+                | SevenSegmentGlyph::E
+                | SevenSegmentGlyph::F
+                | SevenSegmentGlyph::G,
+        );
+        font.insert(
+            '9',
+            SevenSegmentGlyph::A
+                | SevenSegmentGlyph::B
+                | SevenSegmentGlyph::C
+                | SevenSegmentGlyph::F
+                | SevenSegmentGlyph::G,
+        );
+        font.insert(
+            'A',
+            SevenSegmentGlyph::A
+                | SevenSegmentGlyph::B
+                | SevenSegmentGlyph::C
+                | SevenSegmentGlyph::E
+                | SevenSegmentGlyph::F
+                | SevenSegmentGlyph::G,
+        );
+        font.insert(
+            'B',
+            SevenSegmentGlyph::C
+                | SevenSegmentGlyph::D
+                | SevenSegmentGlyph::E
+                | SevenSegmentGlyph::F
+                | SevenSegmentGlyph::G,
+        );
+        font.insert(
+            'C',
+            SevenSegmentGlyph::A
+                | SevenSegmentGlyph::D
+                | SevenSegmentGlyph::E
+                | SevenSegmentGlyph::F,
+        );
+        font.insert(
+            'D',
+            SevenSegmentGlyph::B
+                | SevenSegmentGlyph::C
+                | SevenSegmentGlyph::D
+                | SevenSegmentGlyph::E
+                | SevenSegmentGlyph::G,
+        );
+        font.insert(
+            'E',
+            SevenSegmentGlyph::A
+                | SevenSegmentGlyph::D
+                | SevenSegmentGlyph::E
+                | SevenSegmentGlyph::F
+                | SevenSegmentGlyph::G,
+        );
+        font.insert(
+            'F',
+            SevenSegmentGlyph::A
+                | SevenSegmentGlyph::E
+                | SevenSegmentGlyph::F
+                | SevenSegmentGlyph::G,
+        );
+        Self(font)
+    }
+}
+
+impl Font<SevenSegmentGlyph> for SevenSegmentFont {
+    fn glyph(&self, c: char) -> &SevenSegmentGlyph {
+        self.0.get(&c).unwrap()
+    }
+}
+
+impl Glyph for SevenSegmentGlyph {
+    fn draw(&self, canvas: &mut impl Canvas, x: usize, y: usize, color: &RGB) {
+        if self.contains(SevenSegmentGlyph::A) {
+            canvas.set_pixel(x + 1, y, color);
+            canvas.set_pixel(x + 2, y, color);
+            canvas.set_pixel(x + 3, y, color);
+        }
+        if self.contains(SevenSegmentGlyph::B) {
+            canvas.set_pixel(x + 4, y + 1, color);
+            canvas.set_pixel(x + 4, y + 2, color);
+            canvas.set_pixel(x + 4, y + 3, color);
+        }
+        if self.contains(SevenSegmentGlyph::C) {
+            canvas.set_pixel(x + 4, y + 5, color);
+            canvas.set_pixel(x + 4, y + 6, color);
+            canvas.set_pixel(x + 4, y + 7, color);
+        }
+        if self.contains(SevenSegmentGlyph::D) {
+            canvas.set_pixel(x + 1, y + 8, color);
+            canvas.set_pixel(x + 2, y + 8, color);
+            canvas.set_pixel(x + 3, y + 8, color);
+        }
+        if self.contains(SevenSegmentGlyph::E) {
+            canvas.set_pixel(x, y + 5, color);
+            canvas.set_pixel(x, y + 6, color);
+            canvas.set_pixel(x, y + 7, color);
+        }
+        if self.contains(SevenSegmentGlyph::F) {
+            canvas.set_pixel(x, y + 1, color);
+            canvas.set_pixel(x, y + 2, color);
+            canvas.set_pixel(x, y + 3, color);
+        }
+        if self.contains(SevenSegmentGlyph::G) {
+            canvas.set_pixel(x + 1, y + 4, color);
+            canvas.set_pixel(x + 2, y + 4, color);
+            canvas.set_pixel(x + 3, y + 4, color);
+        }
+    }
+
+    fn extents(&self) -> (usize, usize) {
+        (5, 8)
+    }
+}
diff --git a/pico-st7789/src/font/sixteen_segment.rs b/pico-st7789/src/font/sixteen_segment.rs
index fe021ff..eb8cb29 100644
--- a/pico-st7789/src/font/sixteen_segment.rs
+++ b/pico-st7789/src/font/sixteen_segment.rs
@@ -396,13 +396,182 @@ impl SixteenSegmentFont {
                 | SixteenSegmentGlyph::J
                 | SixteenSegmentGlyph::K,
         );
+
+        font.insert(
+            'a',
+            SixteenSegmentGlyph::D1
+                | SixteenSegmentGlyph::D2
+                | SixteenSegmentGlyph::E
+                | SixteenSegmentGlyph::G1
+                | SixteenSegmentGlyph::L,
+        );
+        font.insert(
+            'b',
+            SixteenSegmentGlyph::D1
+                | SixteenSegmentGlyph::E
+                | SixteenSegmentGlyph::F
+                | SixteenSegmentGlyph::G1
+                | SixteenSegmentGlyph::L,
+        );
+        font.insert(
+            'c',
+            SixteenSegmentGlyph::D1 | SixteenSegmentGlyph::E | SixteenSegmentGlyph::G1,
+        );
+        font.insert(
+            'd',
+            SixteenSegmentGlyph::B
+                | SixteenSegmentGlyph::C
+                | SixteenSegmentGlyph::D2
+                | SixteenSegmentGlyph::G2
+                | SixteenSegmentGlyph::L,
+        );
+        font.insert(
+            'e',
+            SixteenSegmentGlyph::D1
+                | SixteenSegmentGlyph::E
+                | SixteenSegmentGlyph::G1
+                | SixteenSegmentGlyph::K,
+        );
+        font.insert(
+            'f',
+            SixteenSegmentGlyph::A2
+                | SixteenSegmentGlyph::G1
+                | SixteenSegmentGlyph::G2
+                | SixteenSegmentGlyph::I
+                | SixteenSegmentGlyph::L,
+        );
+        font.insert(
+            'g',
+            SixteenSegmentGlyph::A1
+                | SixteenSegmentGlyph::D1
+                | SixteenSegmentGlyph::F
+                | SixteenSegmentGlyph::G1
+                | SixteenSegmentGlyph::I
+                | SixteenSegmentGlyph::L,
+        );
+        font.insert(
+            'h',
+            SixteenSegmentGlyph::E
+                | SixteenSegmentGlyph::F
+                | SixteenSegmentGlyph::G1
+                | SixteenSegmentGlyph::L,
+        );
+        font.insert('i', SixteenSegmentGlyph::L);
+        font.insert(
+            'j',
+            SixteenSegmentGlyph::D1
+                | SixteenSegmentGlyph::E
+                | SixteenSegmentGlyph::I
+                | SixteenSegmentGlyph::L,
+        );
+        font.insert(
+            'k',
+            SixteenSegmentGlyph::I
+                | SixteenSegmentGlyph::J
+                | SixteenSegmentGlyph::L
+                | SixteenSegmentGlyph::M,
+        );
+        font.insert('l', SixteenSegmentGlyph::E | SixteenSegmentGlyph::F);
+        font.insert(
+            'm',
+            SixteenSegmentGlyph::C
+                | SixteenSegmentGlyph::E
+                | SixteenSegmentGlyph::L
+                | SixteenSegmentGlyph::G1
+                | SixteenSegmentGlyph::G2,
+        );
+        font.insert(
+            'n',
+            SixteenSegmentGlyph::E | SixteenSegmentGlyph::L | SixteenSegmentGlyph::G1,
+        );
+        font.insert(
+            'o',
+            SixteenSegmentGlyph::D1
+                | SixteenSegmentGlyph::E
+                | SixteenSegmentGlyph::G1
+                | SixteenSegmentGlyph::L,
+        );
+        font.insert(
+            'p',
+            SixteenSegmentGlyph::A1
+                | SixteenSegmentGlyph::E
+                | SixteenSegmentGlyph::F
+                | SixteenSegmentGlyph::G1
+                | SixteenSegmentGlyph::I,
+        );
+        font.insert(
+            'q',
+            SixteenSegmentGlyph::A1
+                | SixteenSegmentGlyph::F
+                | SixteenSegmentGlyph::G1
+                | SixteenSegmentGlyph::I
+                | SixteenSegmentGlyph::L,
+        );
+        font.insert('r', SixteenSegmentGlyph::E | SixteenSegmentGlyph::G1);
+        font.insert(
+            's',
+            SixteenSegmentGlyph::A1
+                | SixteenSegmentGlyph::D1
+                | SixteenSegmentGlyph::F
+                | SixteenSegmentGlyph::G1
+                | SixteenSegmentGlyph::L,
+        );
+        font.insert(
+            't',
+            SixteenSegmentGlyph::D1
+                | SixteenSegmentGlyph::E
+                | SixteenSegmentGlyph::F
+                | SixteenSegmentGlyph::G1,
+        );
+        font.insert(
+            'u',
+            SixteenSegmentGlyph::D1 | SixteenSegmentGlyph::E | SixteenSegmentGlyph::L,
+        );
+        font.insert('v', SixteenSegmentGlyph::E | SixteenSegmentGlyph::K);
+        font.insert(
+            'w',
+            SixteenSegmentGlyph::C
+                | SixteenSegmentGlyph::E
+                | SixteenSegmentGlyph::K
+                | SixteenSegmentGlyph::M,
+        );
+        font.insert(
+            'x',
+            SixteenSegmentGlyph::H
+                | SixteenSegmentGlyph::J
+                | SixteenSegmentGlyph::K
+                | SixteenSegmentGlyph::M,
+        );
+        font.insert(
+            'y',
+            SixteenSegmentGlyph::B
+                | SixteenSegmentGlyph::C
+                | SixteenSegmentGlyph::I
+                | SixteenSegmentGlyph::D2
+                | SixteenSegmentGlyph::G2,
+        );
+        font.insert(
+            'z',
+            SixteenSegmentGlyph::D1 | SixteenSegmentGlyph::G1 | SixteenSegmentGlyph::K,
+        );
+        font.insert(
+            '@',
+            SixteenSegmentGlyph::A1
+                | SixteenSegmentGlyph::A2
+                | SixteenSegmentGlyph::B
+                | SixteenSegmentGlyph::D1
+                | SixteenSegmentGlyph::D2
+                | SixteenSegmentGlyph::E
+                | SixteenSegmentGlyph::F
+                | SixteenSegmentGlyph::G2,
+        );
         Self(font)
     }
 }
 
 impl Font<SixteenSegmentGlyph> for SixteenSegmentFont {
     fn glyph(&self, c: char) -> &SixteenSegmentGlyph {
-        self.0.get(&c).unwrap()
+        self.0.get(&c).unwrap_or(&SixteenSegmentGlyph::NONE)
     }
 }
 
@@ -513,5 +682,8 @@ impl Glyph for SixteenSegmentGlyph {
             canvas.set_pixel(x + 7, y + 11, color);
         }
     }
-}
 
+    fn extents(&self) -> (usize, usize) {
+        (9, 13)
+    }
+}
diff --git a/pico-st7789/src/main.rs b/pico-st7789/src/main.rs
index e404ba7..ad3a90f 100644
--- a/pico-st7789/src/main.rs
+++ b/pico-st7789/src/main.rs
@@ -3,6 +3,7 @@
 
 extern crate alloc;
 
+use alloc::fmt::format;
 use embedded_alloc::LlffHeap as Heap;
 use embedded_hal::{delay::DelayNs, digital::OutputPin};
 use fugit::RateExtU32;
@@ -14,10 +15,10 @@ use rp_pico::{
 };
 
 mod canvas;
-use canvas::{Canvas, RGB};
+use canvas::{Canvas, RGB, print};
 
 mod font;
-use font::{Font, Glyph, SixteenSegmentFont};
+use font::{BitmapFont, Font, Glyph, SevenSegmentFont, SixteenSegmentFont};
 
 mod st7789;
 use st7789::{ST7789Display, SETUP_PROGRAM};
@@ -59,12 +60,12 @@ impl Canvas for FrameBuf {
 unsafe fn main() -> ! {
     {
         use core::mem::MaybeUninit;
-        const HEAP_SIZE: usize = 1024;
+        const HEAP_SIZE: usize = 64 * 1024;
         static mut HEAP_MEM: [MaybeUninit<u8>; HEAP_SIZE] = [MaybeUninit::uninit(); HEAP_SIZE];
         unsafe { HEAP.init(HEAP_MEM.as_ptr() as usize, HEAP_SIZE) }
     }
 
-    let font_sixteen = SixteenSegmentFont::new();
+    let font_bitmap = BitmapFont::new();
 
     // rp_pico::pac::Peripherals is a reference to physical hardware defined on the Pico.
     let mut peripherals = pac::Peripherals::take().unwrap();
@@ -148,136 +149,19 @@ unsafe fn main() -> ! {
     */
     let mut canvas = FrameBuf::new();
     let white = RGB { r: 63, g: 63, b: 63 };
+    let mut count = 0;
 
     loop {
-        /*
-        draw_seven_segment(0, &mut frame, 0, 0, (255, 255, 255));
-        draw_seven_segment(1, &mut frame, 7, 0, (255, 255, 255));
-        draw_seven_segment(2, &mut frame, 14, 0, (255, 255, 255));
-        draw_seven_segment(3, &mut frame, 21, 0, (255, 255, 255));
-        draw_seven_segment(4, &mut frame, 28, 0, (255, 255, 255));
-        draw_seven_segment(5, &mut frame, 35, 0, (255, 255, 255));
-        draw_seven_segment(6, &mut frame, 42, 0, (255, 255, 255));
-        draw_seven_segment(7, &mut frame, 49, 0, (255, 255, 255));
-        draw_seven_segment(8, &mut frame, 56, 0, (255, 255, 255));
-        draw_seven_segment(9, &mut frame, 63, 0, (255, 255, 255));
-        */
+        canvas.fill(0, 10, 170, 20, &RGB{r: 0, g: 0, b: 0 });
+        print(&mut canvas, &font_bitmap, 1, 10, &format(format_args!("COUNT: {:03}", count)), &RGB{ r: 32, g: 32, b: 63 });
+        print(&mut canvas, &font_bitmap, 1, 200, " !\"#$%&'<>*+,-./", &RGB{ r: 63, g: 63, b: 63 });
+        print(&mut canvas, &font_bitmap, 1, 220, "0123456789|: = ?", &RGB{ r: 63, g: 63, b: 63 });
+        print(&mut canvas, &font_bitmap, 1, 240, "@ABCDEFGHIJKLMNO", &RGB{ r: 63, g: 63, b: 63 });
+        print(&mut canvas, &font_bitmap, 1, 260, "PQRSTUVWXYZ[\\]^_", &RGB{ r: 63, g: 63, b: 63 });
+        print(&mut canvas, &font_bitmap, 1, 280, "`abcdefghijklmno", &RGB{ r: 63, g: 63, b: 63 });
+        print(&mut canvas, &font_bitmap, 1, 300, "pqrstuvwxyz{|}", &RGB{ r: 63, g: 63, b: 63 });
 
-        font_sixteen
-            .glyph(' ')
-            .draw(&mut canvas, 0, 0, &white);
-        font_sixteen
-            .glyph('0')
-            .draw(&mut canvas, 11, 0, &white);
-        font_sixteen
-            .glyph('1')
-            .draw(&mut canvas, 22, 0, &white);
-        font_sixteen
-            .glyph('2')
-            .draw(&mut canvas, 33, 0, &white);
-        font_sixteen
-            .glyph('3')
-            .draw(&mut canvas, 44, 0, &white);
-        font_sixteen
-            .glyph('4')
-            .draw(&mut canvas, 55, 0, &white);
-        font_sixteen
-            .glyph('5')
-            .draw(&mut canvas, 66, 0, &white);
-        font_sixteen
-            .glyph('6')
-            .draw(&mut canvas, 77, 0, &white);
-        font_sixteen
-            .glyph('7')
-            .draw(&mut canvas, 88, 0, &white);
-        font_sixteen
-            .glyph('8')
-            .draw(&mut canvas, 99, 0, &white);
-        font_sixteen
-            .glyph('9')
-            .draw(&mut canvas, 110, 0, &white);
-
-        font_sixteen
-            .glyph('A')
-            .draw(&mut canvas, 0, 20, &white);
-        font_sixteen
-            .glyph('B')
-            .draw(&mut canvas, 11, 20, &white);
-        font_sixteen
-            .glyph('C')
-            .draw(&mut canvas, 22, 20, &white);
-        font_sixteen
-            .glyph('D')
-            .draw(&mut canvas, 33, 20, &white);
-        font_sixteen
-            .glyph('E')
-            .draw(&mut canvas, 44, 20, &white);
-        font_sixteen
-            .glyph('F')
-            .draw(&mut canvas, 55, 20, &white);
-        font_sixteen
-            .glyph('G')
-            .draw(&mut canvas, 66, 20, &white);
-        font_sixteen
-            .glyph('H')
-            .draw(&mut canvas, 77, 20, &white);
-        font_sixteen
-            .glyph('I')
-            .draw(&mut canvas, 88, 20, &white);
-        font_sixteen
-            .glyph('J')
-            .draw(&mut canvas, 99, 20, &white);
-        font_sixteen
-            .glyph('K')
-            .draw(&mut canvas, 110, 20, &white);
-        font_sixteen
-            .glyph('L')
-            .draw(&mut canvas, 121, 20, &white);
-        font_sixteen
-            .glyph('M')
-            .draw(&mut canvas, 132, 20, &white);
-        font_sixteen
-            .glyph('N')
-            .draw(&mut canvas, 143, 20, &white);
-        font_sixteen
-            .glyph('O')
-            .draw(&mut canvas, 154, 20, &white);
-
-        font_sixteen
-            .glyph('P')
-            .draw(&mut canvas, 0, 40, &white);
-        font_sixteen
-            .glyph('Q')
-            .draw(&mut canvas, 11, 40, &white);
-        font_sixteen
-            .glyph('R')
-            .draw(&mut canvas, 22, 40, &white);
-        font_sixteen
-            .glyph('S')
-            .draw(&mut canvas, 33, 40, &white);
-        font_sixteen
-            .glyph('T')
-            .draw(&mut canvas, 44, 40, &white);
-        font_sixteen
-            .glyph('U')
-            .draw(&mut canvas, 55, 40, &white);
-        font_sixteen
-            .glyph('V')
-            .draw(&mut canvas, 66, 40, &white);
-        font_sixteen
-            .glyph('W')
-            .draw(&mut canvas, 77, 40, &white);
-        font_sixteen
-            .glyph('X')
-            .draw(&mut canvas, 88, 40, &white);
-        font_sixteen
-            .glyph('Y')
-            .draw(&mut canvas, 99, 40, &white);
-        font_sixteen
-            .glyph('Z')
-            .draw(&mut canvas, 110, 40, &white);
-
-        canvas.square(10, 70, 160, 310, &white);
+        // canvas.square(10, 70, 160, 310, &white);
 
         {
             let display = display.acquire();
@@ -286,6 +170,7 @@ unsafe fn main() -> ! {
             display.send_buf(canvas.buf);
             let _ = led.set_low();
         }
+        count = count + 1;
         /*
         for x in 80..90 {
             for y in 155..165 {