diff --git a/firmware/lib/fonts/font3x3.h b/firmware/lib/fonts/font3x3.h
new file mode 100644
index 0000000..89a667b
--- /dev/null
+++ b/firmware/lib/fonts/font3x3.h
@@ -0,0 +1,169 @@
+// https://github.com/petabyt/font3x3
+#ifndef FONT3X3_H
+#define FONT3X3_H
+
+struct Font3x3 {
+    const char letter;
+    const char code[3][4];
+};
+
+struct Font3x3 font[] = {
+{'A', {
+" # ",
+"###",
+"# #"}},
+{'B', {
+"## ",
+"###",
+"###"}},
+{'C', {
+"###",
+"#  ",
+"###"}},
+{'D', {
+"## ",
+"# #",
+"## "}},
+{'E', {
+"###",
+"## ",
+"###"}},
+{'F', {
+"###",
+"## ",
+"#  "}},
+{'G', {
+"## ",
+"# #",
+"###"}},
+{'H', {
+"# #",
+"###",
+"# #"}},
+{'I', {
+"###",
+" # ",
+"###"}},
+{'J', {
+"  #",
+"# #",
+"###"}},
+{'K', {
+"# #",
+"## ",
+"# #"}},
+{'L', {
+"#  ",
+"#  ",
+"###"}},
+{'M', {
+"###",
+"###",
+"# #"}},
+{'N', {
+"###",
+"# #",
+"# #"}},
+{'O', {
+"###",
+"# #",
+"###"}},
+{'P', {
+"###",
+"###",
+"#  "}},
+{'Q', {
+"###",
+"###",
+"  #"}},
+{'R', {
+"###",
+"#  ",
+"#  "}},
+{'S', {
+" ##",
+" # ",
+"## "}},
+{'T', {
+"###",
+" # ",
+" # "}},
+{'U', {
+"# #",
+"# #",
+"###"}},
+{'V', {
+"# #",
+"# #",
+" # "}},
+{'W', {
+"# #",
+"###",
+"###"}},
+{'X', {
+"# #",
+" # ",
+"# #"}},
+{'Y', {
+"# #",
+" # ",
+" # "}},
+{'Z', {
+"## ",
+" # ",
+" ##"}},
+{'!', {
+"#  ",
+"   ",
+"#  "}},
+{'>', {
+"#  ",
+" # ",
+"#  "}},
+{'<', {
+" # ",
+"#  ",
+" # "}},
+{'%', {
+"  #",
+"###",
+"#  "}},
+{'*', {
+" # ",
+"## ",
+"   "}},
+{'+', {
+" # ",
+"###",
+" # "}},
+{'-', {
+"   ",
+"###",
+"   "}},
+{'.', {
+"   ",
+"   ",
+"#  "}},
+{',', {
+"   ",
+"#  ",
+"#  "}},
+{'$', {
+"###",
+" # ",
+"###"}},
+{'|', {
+"#  ",
+"#  ",
+"#  "}},
+{'?', {
+"###",
+" ##",
+" # "}},
+{'^', {
+" # ",
+"# #",
+"   "}}
+};
+
+#endif
diff --git a/firmware/lib/fonts/font5x7.h b/firmware/lib/fonts/font5x7.h
new file mode 100644
index 0000000..1620ee2
--- /dev/null
+++ b/firmware/lib/fonts/font5x7.h
@@ -0,0 +1,761 @@
+// https://github.com/petabyt/font
+/*
+	"font.h", Written by Daniel C. MIT License.
+
+	This file is C89.
+
+	Compiler/preprocessor configs (optional):
+	-D NO_LOWERCASE
+	-D NO_SYMBOL
+	-D NO_NUMBERS
+	In case you are limited in space :)
+*/
+#ifndef FONT_H
+#define FONT_H
+
+struct Font {
+    char letter;
+    char code[7][5];
+};
+
+struct Font font[] = {
+{' ', { /* Processor should ignore this */
+"     ",
+"     ",
+"     ",
+"     ",
+"     ",
+"     ",
+"     "}},
+{'A', {
+" ### ",
+"#   #",
+"#   #",
+"#   #",
+"#####",
+"#   #",
+"#   #"}},
+{'B', {
+"#### ",
+"#   #",
+"#   #",
+"#### ",
+"#   #",
+"#   #",
+"#### "}},
+{'C', {
+" ####",
+"#    ",
+"#    ",
+"#    ",
+"#    ",
+"#    ",
+" ####"}},
+{'D', {
+"#### ",
+"#   #",
+"#   #",
+"#   #",
+"#   #",
+"#   #",
+"#### "}},
+{'E', {
+"#####",
+"#    ",
+"#    ",
+"#####",
+"#    ",
+"#    ",
+"#####"}},
+{'F', {
+"#####",
+"#    ",
+"#    ",
+"#####",
+"#    ",
+"#    ",
+"#    "}},
+{'G', {
+" ####",
+"#    ",
+"#    ",
+"#  ##",
+"#   #",
+"#   #",
+" ####"}},
+{'H', {
+"#   #",
+"#   #",
+"#   #",
+"#####",
+"#   #",
+"#   #",
+"#   #"}},
+{'I', {
+"#    ",
+"#    ",
+"#    ",
+"#    ",
+"#    ",
+"#    ",
+"#    "}},
+{'J', {
+"    #",
+"    #",
+"    #",
+"    #",
+"    #",
+"    #",
+"#### "}},
+{'K', {
+"#   #",
+"#  # ",
+"# #  ",
+"##   ",
+"# #  ",
+"#  # ",
+"#   #"}},
+{'L', {
+"#    ",
+"#    ",
+"#    ",
+"#    ",
+"#    ",
+"#    ",
+"#####"}},
+{'M', {
+"#   #",
+"## ##",
+"# # #",
+"#   #",
+"#   #",
+"#   #",
+"#   #"}},
+{'N', {
+"#   #",
+"##  #",
+"# # #",
+"#  ##",
+"#   #",
+"#   #",
+"#   #"}},
+{'O', {
+" ### ",
+"#   #",
+"#   #",
+"#   #",
+"#   #",
+"#   #",
+" ### "}},
+{'P', {
+"#### ",
+"#   #",
+"#   #",
+"#### ",
+"#    ",
+"#    ",
+"#    "}},
+{'Q', {
+" ### ",
+"#   #",
+"#   #",
+"#   #",
+"#   #",
+"#  ##",
+" ####"}},
+{'R', {
+"#### ",
+"#   #",
+"#   #",
+"#   #",
+"#### ",
+"#   #",
+"#   #"}},
+{'S', {
+" ####",
+"#    ",
+"#    ",
+" ### ",
+"    #",
+"    #",
+"#### "}},
+{'T', {
+"#####",
+"  #  ",
+"  #  ",
+"  #  ",
+"  #  ",
+"  #  ",
+"  #  "}},
+{'U', {
+"#   #",
+"#   #",
+"#   #",
+"#   #",
+"#   #",
+"#   #",
+" ### "}},
+{'V', {
+"#   #",
+"#   #",
+"#   #",
+"#   #",
+"#   #",
+" # # ",
+"  #  "}},
+{'W', {
+"#   #",
+"#   #",
+"#   #",
+"#   #",
+"# # #",
+"## ##",
+"#   #"}},
+{'X', {
+"#   #",
+"#   #",
+" # # ",
+"  #  ",
+" # # ",
+"#   #",
+"#   #"}},
+{'Y', {
+"#   #",
+"#   #",
+"#   #",
+" ### ",
+"  #  ",
+"  #  ",
+"  #  "}},
+{'Z', {
+"#####",
+"    #",
+"   # ",
+"  #  ",
+" #   ",
+"#    ",
+"#####"}},
+#ifndef NO_LOWERCASE
+{'a', {
+"     ",
+"     ",
+" ### ",
+"    #",
+" ####",
+"#   #",
+" ####"}},
+{'b', {
+"#    ",
+"#    ",
+"#### ",
+"#   #",
+"#   #",
+"#   #",
+"#### "}},
+{'c', {
+"     ",
+"     ",
+" ### ",
+"#   #",
+"#    ",
+"#   #",
+" ### "}},
+{'d', {
+"    #",
+"    #",
+" ####",
+"#   #",
+"#   #",
+"#   #",
+" ####"}},
+{'e', {
+"     ",
+"     ",
+" ### ",
+"#   #",
+"#####",
+"#    ",
+" ####"}},
+{'f', {
+"  ## ",
+" #  #",
+" #   ",
+"###  ",
+" #   ",
+" #   ",
+" #   "}},
+{'g', {
+"     ",
+" ####",
+"#   #",
+"#   #",
+" ####",
+"    #",
+"#### "}},
+{'h', {
+"#    ",
+"#    ",
+"#### ",
+"#   #",
+"#   #",
+"#   #",
+"#   #"}},
+{'i', {
+"#    ",
+"     ",
+"#    ",
+"#    ",
+"#    ",
+"#    ",
+"#    "}},
+{'j', {
+"    #",
+"     ",
+"   ##",
+"    #",
+"    #",
+"#   #",
+" ### "}},
+{'k', {
+"#    ",
+"#    ",
+"#   #",
+"#  # ",
+"###  ",
+"#  # ",
+"#   #"}},
+{'l', {
+"#    ",
+"#    ",
+"#    ",
+"#    ",
+"#    ",
+"#    ",
+"##   "}},
+{'m', {
+"     ",
+"     ",
+"#### ",
+"# # #",
+"# # #",
+"# # #",
+"# # #"}},
+{'n', {
+"     ",
+"     ",
+"#### ",
+"#   #",
+"#   #",
+"#   #",
+"#   #"}},
+{'o', {
+"     ",
+"     ",
+" ### ",
+"#   #",
+"#   #",
+"#   #",
+" ### "}},
+{'p', {
+"     ",
+" ### ",
+" #  #",
+" #  #",
+" ### ",
+" #   ",
+" #   "}},
+{'q', {
+"     ",
+"     ",
+"  ###",
+" #  #",
+"  ###",
+"    #",
+"    #"}},
+{'r', {
+"     ",
+"     ",
+"# ###",
+"##   ",
+"#    ",
+"#    ",
+"#    "}},
+{'s', {
+"     ",
+"     ",
+" ####",
+"#    ",
+" ### ",
+"    #",
+"#### "}},
+{'t', {
+" #   ",
+" #   ",
+"###  ",
+" #   ",
+" #   ",
+" #   ",
+"  ## "}},
+{'u', {
+"     ",
+"     ",
+"#   #",
+"#   #",
+"#   #",
+"#   #",
+" ### "}},
+{'v', {
+"     ",
+"     ",
+"#   #",
+"#   #",
+"#   #",
+" # # ",
+"  #  "}},
+{'w', {
+"     ",
+"     ",
+"#   #",
+"#   #",
+"# # #",
+"# # #",
+" # # "}},
+{'x', {
+"     ",
+"     ",
+"#   #",
+" # # ",
+"  #  ",
+" # # ",
+"#   #"}},
+{'y', {
+"     ",
+"     ",
+"#   #",
+"#   #",
+" ####",
+"    #",
+"#### "}},
+{'z', {
+"     ",
+"     ",
+"#####",
+"   # ",
+"  #  ",
+" #   ",
+"#####"}},
+#endif
+#ifndef NO_NUMBERS
+{'0', {
+" ### ",
+"#   #",
+"#  ##",
+"# # #",
+"##  #",
+"#   #",
+" ### "}},
+{'1', {
+"##   ",
+" #   ",
+" #   ",
+" #   ",
+" #   ",
+" #   ",
+" #   "}},
+{'2', {
+" ### ",
+"#   #",
+"    #",
+"  ## ",
+" #   ",
+"#    ",
+"#####"}},
+{'3', {
+"#### ",
+"    #",
+"    #",
+" ### ",
+"    #",
+"    #",
+"#### "}},
+{'4', {
+"#   #",
+"#   #",
+"#   #",
+"#####",
+"    #",
+"    #",
+"    #"}},
+{'5', {
+"#####",
+"#    ",
+"#    ",
+"#### ",
+"    #",
+"    #",
+"#### "}},
+{'6', {
+" ####",
+"#    ",
+"#    ",
+" ### ",
+"#   #",
+"#   #",
+" ### "}},
+{'7', {
+"#####",
+"    #",
+"    #",
+"  ## ",
+" #   ",
+" #   ",
+" #   "}},
+{'8', {
+" ### ",
+"#   #",
+"#   #",
+" ### ",
+"#   #",
+"#   #",
+" ### "}},
+{'9', {
+" ### ",
+"#   #",
+"#   #",
+" ####",
+"    #",
+"    #",
+" ### "}},
+#endif
+#ifndef NO_SYMBOLS
+{'!', {
+"#    ",
+"#    ",
+"#    ",
+"#    ",
+"#    ",
+"     ",
+"#    "}},
+{'.', {
+"     ",
+"     ",
+"     ",
+"     ",
+"     ",
+"     ",
+"#    "}},
+{',', {
+"     ",
+"     ",
+"     ",
+"     ",
+"     ",
+"  #  ",
+" #   "}},
+{'?', {
+" ##  ",
+"#  # ",
+"   # ",
+"  #  ",
+" #   ",
+"     ",
+" #   "}},
+{1, {
+"     ",
+" # # ",
+" # # ",
+"     ",
+"  #  ",
+"#   #",
+" ### "}},
+{'%', {
+"    #",
+" #  #",
+"   # ",
+"  #  ",
+" #   ",
+"#  # ",
+"#    "}},
+{'#', {
+" # # ",
+" # # ",
+"#####",
+" # # ",
+"#####",
+" # # ",
+" # # "}},
+{'_', {
+"     ",
+"     ",
+"     ",
+"     ",
+"     ",
+"     ",
+"#####"}},
+{'-', {
+"     ",
+"     ",
+"     ",
+" ### ",
+"     ",
+"     ",
+"     "}},
+{';', {
+"     ",
+" #   ",
+"     ",
+" #   ",
+" #   ",
+"#    ",
+"     "}},
+{'`', {
+" #   ",
+" #   ",
+"     ",
+"     ",
+"     ",
+"     ",
+"     "}},
+{'=', {
+"     ",
+"#####",
+"     ",
+"     ",
+"#####",
+"     ",
+"     "}},
+{'_', {
+"     ",
+"     ",
+"     ",
+"     ",
+"     ",
+"     ",
+"#####"}},
+{':', {
+"     ",
+" #   ",
+"     ",
+"     ",
+" #   ",
+"     ",
+"     "}},
+{'<', {
+"   # ",
+"  #  ",
+" #   ",
+"#    ",
+" #   ",
+"  #  ",
+"   # "}},
+{'>', {
+" #   ",
+"  #  ",
+"   # ",
+"    #",
+"   # ",
+"  #  ",
+" #   "}},
+{'~', {
+"     ",
+"     ",
+"# # #",
+" # # ",
+"     ",
+"     ",
+"     "}},
+{'*', {
+"  #  ",
+" ### ",
+"  #  ",
+" # # ",
+"     ",
+"     ",
+"     "}},
+{'/', {
+"    #",
+"    #",
+"   # ",
+"  #  ",
+" #   ",
+" #   ",
+"#    "}},
+{'\'', {
+"#    ",
+"#    ",
+"#    ",
+"     ",
+"     ",
+"     ",
+"     "}},
+{'"', {
+"# #  ",
+"# #  ",
+"# #  ",
+"     ",
+"     ",
+"     ",
+"     "}},
+{'(', {
+"  #  ",
+" #   ",
+"#    ",
+"#    ",
+"#    ",
+" #   ",
+"  #  "}},
+{')', {
+"#    ",
+" #   ",
+"  #  ",
+"  #  ",
+"  #  ",
+" #   ",
+"#    "}},
+{'}', {
+"#    ",
+" #   ",
+" #   ",
+"  #  ",
+" #   ",
+" #   ",
+"#    "}},
+{'{', {
+"  #  ",
+" #   ",
+" #   ",
+"#    ",
+" #   ",
+" #   ",
+"  #  "}},
+{'+', {
+"     ",
+"     ",
+"  #  ",
+"  #  ",
+"#####",
+"  #  ",
+"  #  "}},
+{'-', {
+"     ",
+"     ",
+"     ",
+"     ",
+"#####",
+"     ",
+"     "}},
+#endif
+
+/* Fallback/end Char. If you don't know the
+font size, use this as the "null terminator" */
+{0, {
+"#####",
+"#####",
+"#####",
+"#####",
+"#####",
+"#####",
+"#####"}},
+};
+
+#endif
diff --git a/firmware/src/text.cpp b/firmware/src/text.cpp
new file mode 100644
index 0000000..c3b62b7
--- /dev/null
+++ b/firmware/src/text.cpp
@@ -0,0 +1,85 @@
+#include <assert.h>
+#include "text.h"
+
+#include "font3x3.h"
+
+#define FONT_WIDTH 3
+#define FONT_HEIGHT 3
+
+uint8_t cx = 0;
+uint8_t cy = 0;
+
+void text_setCursor(uint8_t x, uint8_t y) {
+  assert(x < COL_COUNT);
+  assert(y < ROW_COUNT);
+  cx = x;
+  cy = y;
+}
+
+uint8_t text_charIdx(char c) {
+  // change to uppercase
+  if (c >= 'a' && c <= 'z') {
+    c += ('A' - 'a');
+  }
+
+  // find character
+  for (int i = 0; i < sizeof(font); i++) {
+    if (font[i].letter == c) {
+      return i;
+    }
+  }
+
+  // if not found, use `?` as placeholder
+  return text_charIdx('?');
+}
+
+inline void text_newline() {
+  cx = 0;
+  cy += (FONT_HEIGHT + 1);
+}
+
+void text_next() {
+  cx += (FONT_WIDTH + 1);
+  if (cx >= COL_COUNT) {
+    text_newline();
+  }
+}
+
+bool text_printChar(uint8_t framebuffer[ROW_COUNT * COL_COUNT], char c) {
+  // check if there is space
+  if (cy + FONT_HEIGHT >= ROW_COUNT) {
+    return false;
+  }
+
+  // special cases - space, newline
+  if (c == '\n') {
+    text_newline();
+    return true;
+  } else if (c == ' ') {
+    text_next();
+    return true;
+  }
+
+  // draw pixels
+  uint8_t letterIdx = text_charIdx(c);
+  for (int i = 0; i < FONT_HEIGHT; i++) {
+    for (int j = 0; j < FONT_WIDTH; j++) {
+      if (font[letterIdx].code[i][j] == '#') {
+        framebuffer[(i + cy) * COL_COUNT + (j + cx)] = 255;
+      }
+    }
+  }
+
+  // move cursor
+  text_next();
+  return true;
+}
+
+bool text_printStr(uint8_t framebuffer[ROW_COUNT * COL_COUNT], char *string) {
+  for (int i = 0; string[i] != 0; i++) {
+    if (!text_printChar(framebuffer, string[i])) {
+      return false;
+    }
+  }
+  return true;
+}
diff --git a/firmware/src/text.h b/firmware/src/text.h
new file mode 100644
index 0000000..ddd237f
--- /dev/null
+++ b/firmware/src/text.h
@@ -0,0 +1,10 @@
+#ifndef _text_h
+#define _text_h
+
+#include <stdint.h>
+#include "config.h"
+
+bool text_printChar(uint8_t framebuffer[ROW_COUNT * COL_COUNT], char c);
+bool text_printStr(uint8_t framebuffer[ROW_COUNT * COL_COUNT], char *string);
+
+#endif