// https://docs.arduino.cc/built-in-examples/display/RowColumnScanning
// https://osoyoo.com/2017/07/15/8x8-led-matrix/#2.1
// https://github.com/dhepper/font8x8

// https://github.com/rene-d/fontino/blob/master/font8x8_ib8x8u.ino
//
// FACE_NAME "IBM BIOS 8x8"
//
// 0-31,127 : Code page 437, cf. https://en.wikipedia.org/wiki/Code_page_437
// 32-126   : ASCII
// 160-255  : ISO-8859-1, cf. https://en.wikipedia.org/wiki/ISO/IEC_8859-1

// const uint8_t font8x8_ib8x8u[224][8] PROGMEM = {
uint8_t font8x8_ib8x8u[224][8] = {
    // ---------------------------  0-127 ---------------------------
    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},  // 0000 (uni0000.dup1)
    {0x7e, 0x81, 0xa5, 0x81, 0xbd, 0x99, 0x81, 0x7e},  // 0001 (uni0001)
    {0x7e, 0xff, 0xdb, 0xff, 0xc3, 0xe7, 0xff, 0x7e},  // 0002 (uni0002)
    {0x6c, 0xfe, 0xfe, 0xfe, 0x7c, 0x38, 0x10, 0x00},  // 0003 (uni0003)
    {0x10, 0x38, 0x7c, 0xfe, 0x7c, 0x38, 0x10, 0x00},  // 0004 (uni0004)
    {0x38, 0x7c, 0x38, 0xfe, 0xfe, 0x7c, 0x38, 0x7c},  // 0005 (uni0005)
    {0x10, 0x10, 0x38, 0x7c, 0xfe, 0x7c, 0x38, 0x7c},  // 0006 (uni0006)
    {0x00, 0x00, 0x18, 0x3c, 0x3c, 0x18, 0x00, 0x00},  // 0007 (uni0007)
    {0xff, 0xff, 0xe7, 0xc3, 0xc3, 0xe7, 0xff, 0xff},  // 0008 (uni0008)
    {0x00, 0x3c, 0x66, 0x42, 0x42, 0x66, 0x3c, 0x00},  // 0009 (uni0009)
    {0xff, 0xc3, 0x99, 0xbd, 0xbd, 0x99, 0xc3, 0xff},  // 000a (uni000A)
    {0x0f, 0x07, 0x0f, 0x7d, 0xcc, 0xcc, 0xcc, 0x78},  // 000b (uni000B)
    {0x3c, 0x66, 0x66, 0x66, 0x3c, 0x18, 0x7e, 0x18},  // 000c (uni000C)
    {0x3f, 0x33, 0x3f, 0x30, 0x30, 0x70, 0xf0, 0xe0},  // 000d (uni000D)
    {0x7f, 0x63, 0x7f, 0x63, 0x63, 0x67, 0xe6, 0xc0},  // 000e (uni000E)
    {0x99, 0x5a, 0x3c, 0xe7, 0xe7, 0x3c, 0x5a, 0x99},  // 000f (uni000F)
    {0x80, 0xe0, 0xf8, 0xfe, 0xf8, 0xe0, 0x80, 0x00},  // 0010 (uni0010)
    {0x02, 0x0e, 0x3e, 0xfe, 0x3e, 0x0e, 0x02, 0x00},  // 0011 (uni0011)
    {0x18, 0x3c, 0x7e, 0x18, 0x18, 0x7e, 0x3c, 0x18},  // 0012 (uni0012)
    {0x66, 0x66, 0x66, 0x66, 0x66, 0x00, 0x66, 0x00},  // 0013 (uni0013)
    {0x7f, 0xdb, 0xdb, 0x7b, 0x1b, 0x1b, 0x1b, 0x00},  // 0014 (uni0014)
    {0x3e, 0x63, 0x38, 0x6c, 0x6c, 0x38, 0xcc, 0x78},  // 0015 (uni0015)
    {0x00, 0x00, 0x00, 0x00, 0x7e, 0x7e, 0x7e, 0x00},  // 0016 (uni0016)
    {0x18, 0x3c, 0x7e, 0x18, 0x7e, 0x3c, 0x18, 0xff},  // 0017 (uni0017)
    {0x18, 0x3c, 0x7e, 0x18, 0x18, 0x18, 0x18, 0x00},  // 0018 (uni0018)
    {0x18, 0x18, 0x18, 0x18, 0x7e, 0x3c, 0x18, 0x00},  // 0019 (uni0019)
    {0x00, 0x18, 0x0c, 0xfe, 0x0c, 0x18, 0x00, 0x00},  // 001a (uni001A)
    {0x00, 0x30, 0x60, 0xfe, 0x60, 0x30, 0x00, 0x00},  // 001b (uni001B)
    {0x00, 0x00, 0xc0, 0xc0, 0xc0, 0xfe, 0x00, 0x00},  // 001c (uni001C)
    {0x00, 0x24, 0x66, 0xff, 0x66, 0x24, 0x00, 0x00},  // 001d (uni001D)
    {0x00, 0x18, 0x3c, 0x7e, 0xff, 0xff, 0x00, 0x00},  // 001e (uni001E)
    {0x00, 0xff, 0xff, 0x7e, 0x3c, 0x18, 0x00, 0x00},  // 001f (uni001F)
    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},  // 0020 (space)
    {0x30, 0x78, 0x78, 0x30, 0x30, 0x00, 0x30, 0x00},  // 0021 (exclam)
    {0x6c, 0x6c, 0x6c, 0x00, 0x00, 0x00, 0x00, 0x00},  // 0022 (quotedbl)
    {0x6c, 0x6c, 0xfe, 0x6c, 0xfe, 0x6c, 0x6c, 0x00},  // 0023 (numbersign)
    {0x30, 0x7c, 0xc0, 0x78, 0x0c, 0xf8, 0x30, 0x00},  // 0024 (dollar)
    {0x00, 0xc6, 0xcc, 0x18, 0x30, 0x66, 0xc6, 0x00},  // 0025 (percent)
    {0x38, 0x6c, 0x38, 0x76, 0xdc, 0xcc, 0x76, 0x00},  // 0026 (ampersand)
    {0x60, 0x60, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00},  // 0027 (quotesingle)
    {0x18, 0x30, 0x60, 0x60, 0x60, 0x30, 0x18, 0x00},  // 0028 (parenleft)
    {0x60, 0x30, 0x18, 0x18, 0x18, 0x30, 0x60, 0x00},  // 0029 (parenright)
    {0x00, 0x66, 0x3c, 0xff, 0x3c, 0x66, 0x00, 0x00},  // 002a (asterisk)
    {0x00, 0x30, 0x30, 0xfc, 0x30, 0x30, 0x00, 0x00},  // 002b (plus)
    {0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x60},  // 002c (comma)
    {0x00, 0x00, 0x00, 0xfc, 0x00, 0x00, 0x00, 0x00},  // 002d (hyphen)
    {0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x00},  // 002e (period)
    {0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, 0x80, 0x00},  // 002f (slash)
    {0x7c, 0xc6, 0xce, 0xde, 0xf6, 0xe6, 0x7c, 0x00},  // 0030 (zero)
    {0x30, 0x70, 0x30, 0x30, 0x30, 0x30, 0xfc, 0x00},  // 0031 (one)
    {0x78, 0xcc, 0x0c, 0x38, 0x60, 0xc4, 0xfc, 0x00},  // 0032 (two)
    {0x78, 0xcc, 0x0c, 0x38, 0x0c, 0xcc, 0x78, 0x00},  // 0033 (three)
    {0x1c, 0x3c, 0x6c, 0xcc, 0xfe, 0x0c, 0x1e, 0x00},  // 0034 (four)
    {0xfc, 0xc0, 0xf8, 0x0c, 0x0c, 0xcc, 0x78, 0x00},  // 0035 (five)
    {0x38, 0x60, 0xc0, 0xf8, 0xcc, 0xcc, 0x78, 0x00},  // 0036 (six)
    {0xfc, 0xcc, 0x0c, 0x18, 0x30, 0x30, 0x30, 0x00},  // 0037 (seven)
    {0x78, 0xcc, 0xcc, 0x78, 0xcc, 0xcc, 0x78, 0x00},  // 0038 (eight)
    {0x78, 0xcc, 0xcc, 0x7c, 0x0c, 0x18, 0x70, 0x00},  // 0039 (nine)
    {0x00, 0x30, 0x30, 0x00, 0x00, 0x30, 0x30, 0x00},  // 003a (colon)
    {0x00, 0x30, 0x30, 0x00, 0x30, 0x30, 0x60, 0x00},  // 003b (semicolon)
    {0x18, 0x30, 0x60, 0xc0, 0x60, 0x30, 0x18, 0x00},  // 003c (less)
    {0x00, 0x00, 0xfc, 0x00, 0x00, 0xfc, 0x00, 0x00},  // 003d (equal)
    {0x60, 0x30, 0x18, 0x0c, 0x18, 0x30, 0x60, 0x00},  // 003e (greater)
    {0x78, 0xcc, 0x0c, 0x18, 0x30, 0x00, 0x30, 0x00},  // 003f (question)
    {0x7c, 0xc6, 0xde, 0xde, 0xde, 0xc0, 0x78, 0x00},  // 0040 (at)
    {0x30, 0x78, 0xcc, 0xcc, 0xfc, 0xcc, 0xcc, 0x00},  // 0041 (A)
    {0xfc, 0x66, 0x66, 0x7c, 0x66, 0x66, 0xfc, 0x00},  // 0042 (B)
    {0x3c, 0x66, 0xc0, 0xc0, 0xc0, 0x66, 0x3c, 0x00},  // 0043 (C)
    {0xf8, 0x6c, 0x66, 0x66, 0x66, 0x6c, 0xf8, 0x00},  // 0044 (D)
    {0xfe, 0x62, 0x68, 0x78, 0x68, 0x62, 0xfe, 0x00},  // 0045 (E)
    {0xfe, 0x62, 0x68, 0x78, 0x68, 0x60, 0xf0, 0x00},  // 0046 (F)
    {0x3c, 0x66, 0xc0, 0xc0, 0xce, 0x66, 0x3e, 0x00},  // 0047 (G)
    {0xcc, 0xcc, 0xcc, 0xfc, 0xcc, 0xcc, 0xcc, 0x00},  // 0048 (H)
    {0x78, 0x30, 0x30, 0x30, 0x30, 0x30, 0x78, 0x00},  // 0049 (I)
    {0x1e, 0x0c, 0x0c, 0x0c, 0xcc, 0xcc, 0x78, 0x00},  // 004a (J)
    {0xe6, 0x66, 0x6c, 0x78, 0x6c, 0x66, 0xe6, 0x00},  // 004b (K)
    {0xf0, 0x60, 0x60, 0x60, 0x62, 0x66, 0xfe, 0x00},  // 004c (L)
    {0xc6, 0xee, 0xfe, 0xfe, 0xd6, 0xc6, 0xc6, 0x00},  // 004d (M)
    {0xc6, 0xe6, 0xf6, 0xde, 0xce, 0xc6, 0xc6, 0x00},  // 004e (N)
    {0x38, 0x6c, 0xc6, 0xc6, 0xc6, 0x6c, 0x38, 0x00},  // 004f (O)
    {0xfc, 0x66, 0x66, 0x7c, 0x60, 0x60, 0xf0, 0x00},  // 0050 (P)
    {0x78, 0xcc, 0xcc, 0xcc, 0xdc, 0x78, 0x1c, 0x00},  // 0051 (Q)
    {0xfc, 0x66, 0x66, 0x7c, 0x6c, 0x66, 0xe6, 0x00},  // 0052 (R)
    {0x78, 0xcc, 0xe0, 0x70, 0x1c, 0xcc, 0x78, 0x00},  // 0053 (S)
    {0xfc, 0xb4, 0x30, 0x30, 0x30, 0x30, 0x78, 0x00},  // 0054 (T)
    {0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xfc, 0x00},  // 0055 (U)
    {0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x78, 0x30, 0x00},  // 0056 (V)
    {0xc6, 0xc6, 0xc6, 0xd6, 0xfe, 0xee, 0xc6, 0x00},  // 0057 (W)
    {0xc6, 0xc6, 0x6c, 0x38, 0x38, 0x6c, 0xc6, 0x00},  // 0058 (X)
    {0xcc, 0xcc, 0xcc, 0x78, 0x30, 0x30, 0x78, 0x00},  // 0059 (Y)
    {0xfe, 0xc6, 0x8c, 0x18, 0x32, 0x66, 0xfe, 0x00},  // 005a (Z)
    {0x78, 0x60, 0x60, 0x60, 0x60, 0x60, 0x78, 0x00},  // 005b (bracketleft)
    {0xc0, 0x60, 0x30, 0x18, 0x0c, 0x06, 0x02, 0x00},  // 005c (backslash)
    {0x78, 0x18, 0x18, 0x18, 0x18, 0x18, 0x78, 0x00},  // 005d (bracketright)
    {0x10, 0x38, 0x6c, 0xc6, 0x00, 0x00, 0x00, 0x00},  // 005e (asciicircum)
    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff},  // 005f (underscore)
    {0x30, 0x30, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00},  // 0060 (grave)
    {0x00, 0x00, 0x78, 0x0c, 0x7c, 0xcc, 0x76, 0x00},  // 0061 (a)
    {0xe0, 0x60, 0x60, 0x7c, 0x66, 0x66, 0xdc, 0x00},  // 0062 (b)
    {0x00, 0x00, 0x78, 0xcc, 0xc0, 0xcc, 0x78, 0x00},  // 0063 (c)
    {0x1c, 0x0c, 0x0c, 0x7c, 0xcc, 0xcc, 0x76, 0x00},  // 0064 (d)
    {0x00, 0x00, 0x78, 0xcc, 0xfc, 0xc0, 0x78, 0x00},  // 0065 (e)
    {0x38, 0x6c, 0x60, 0xf0, 0x60, 0x60, 0xf0, 0x00},  // 0066 (f)
    {0x00, 0x00, 0x76, 0xcc, 0xcc, 0x7c, 0x0c, 0xf8},  // 0067 (g)
    {0xe0, 0x60, 0x6c, 0x76, 0x66, 0x66, 0xe6, 0x00},  // 0068 (h)
    {0x30, 0x00, 0x70, 0x30, 0x30, 0x30, 0x78, 0x00},  // 0069 (i)
    {0x0c, 0x00, 0x0c, 0x0c, 0x0c, 0xcc, 0xcc, 0x78},  // 006a (j)
    {0xe0, 0x60, 0x66, 0x6c, 0x78, 0x6c, 0xe6, 0x00},  // 006b (k)
    {0x70, 0x30, 0x30, 0x30, 0x30, 0x30, 0x78, 0x00},  // 006c (l)
    {0x00, 0x00, 0xcc, 0xfe, 0xfe, 0xd6, 0xc6, 0x00},  // 006d (m)
    {0x00, 0x00, 0xf8, 0xcc, 0xcc, 0xcc, 0xcc, 0x00},  // 006e (n)
    {0x00, 0x00, 0x78, 0xcc, 0xcc, 0xcc, 0x78, 0x00},  // 006f (o)
    {0x00, 0x00, 0xdc, 0x66, 0x66, 0x7c, 0x60, 0xf0},  // 0070 (p)
    {0x00, 0x00, 0x76, 0xcc, 0xcc, 0x7c, 0x0c, 0x1e},  // 0071 (q)
    {0x00, 0x00, 0xdc, 0x76, 0x66, 0x60, 0xf0, 0x00},  // 0072 (r)
    {0x00, 0x00, 0x7c, 0xc0, 0x78, 0x0c, 0xf8, 0x00},  // 0073 (s)
    {0x10, 0x30, 0x7c, 0x30, 0x30, 0x34, 0x18, 0x00},  // 0074 (t)
    {0x00, 0x00, 0xcc, 0xcc, 0xcc, 0xcc, 0x76, 0x00},  // 0075 (u)
    {0x00, 0x00, 0xcc, 0xcc, 0xcc, 0x78, 0x30, 0x00},  // 0076 (v)
    {0x00, 0x00, 0xc6, 0xd6, 0xfe, 0xfe, 0x6c, 0x00},  // 0077 (w)
    {0x00, 0x00, 0xc6, 0x6c, 0x38, 0x6c, 0xc6, 0x00},  // 0078 (x)
    {0x00, 0x00, 0xcc, 0xcc, 0xcc, 0x7c, 0x0c, 0xf8},  // 0079 (y)
    {0x00, 0x00, 0xfc, 0x98, 0x30, 0x64, 0xfc, 0x00},  // 007a (z)
    {0x1c, 0x30, 0x30, 0xe0, 0x30, 0x30, 0x1c, 0x00},  // 007b (braceleft)
    {0x18, 0x18, 0x18, 0x00, 0x18, 0x18, 0x18, 0x00},  // 007c (bar)
    {0xe0, 0x30, 0x30, 0x1c, 0x30, 0x30, 0xe0, 0x00},  // 007d (braceright)
    {0x76, 0xdc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},  // 007e (asciitilde)
    {0x00, 0x10, 0x38, 0x6c, 0xc6, 0xc6, 0xfe, 0x00},  // 007f (uni007F)
    // ---------------------------  160-255 ---------------------------
    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},  // 00a0 (uni00A0)
    {0x18, 0x18, 0x00, 0x18, 0x18, 0x18, 0x18, 0x00},  // 00a1 (exclamdown)
    {0x18, 0x18, 0x7e, 0xc0, 0xc0, 0x7e, 0x18, 0x18},  // 00a2 (cent)
    {0x38, 0x6c, 0x64, 0xf0, 0x60, 0xe6, 0xfc, 0x00},  // 00a3 (sterling)
    {0x00, 0xc6, 0x7c, 0xc6, 0xc6, 0x7c, 0xc6, 0x00},  // 00a4 (currency)
    {0xcc, 0xcc, 0x78, 0xfc, 0x30, 0xfc, 0x30, 0x30},  // 00a5 (yen)
    {0x18, 0x18, 0x18, 0x00, 0x18, 0x18, 0x18, 0x00},  // 00a6 (brokenbar)
    {0x3e, 0x63, 0x38, 0x6c, 0x6c, 0x38, 0xcc, 0x78},  // 00a7 (section)
    {0xc6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},  // 00a8 (dieresis)
    {0x7e, 0x81, 0x9d, 0xa1, 0xa1, 0x9d, 0x81, 0x7e},  // 00a9 (copyright)
    {0x3c, 0x6c, 0x6c, 0x3e, 0x00, 0x7e, 0x00, 0x00},  // 00aa (ordfeminine)
    {0x00, 0x33, 0x66, 0xcc, 0x66, 0x33, 0x00, 0x00},  // 00ab (guillemotleft)
    {0x00, 0x00, 0x00, 0xfc, 0x0c, 0x0c, 0x00, 0x00},  // 00ac (logicalnot)
    {0x00, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x00, 0x00},  // 00ad (uni00AD)
    {0x7e, 0x81, 0xb9, 0xa5, 0xb9, 0xa5, 0x81, 0x7e},  // 00ae (registered)
    {0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},  // 00af (macron)
    {0x38, 0x6c, 0x6c, 0x38, 0x00, 0x00, 0x00, 0x00},  // 00b0 (degree)
    {0x30, 0x30, 0xfc, 0x30, 0x30, 0x00, 0xfc, 0x00},  // 00b1 (plusminus)
    {0x70, 0x18, 0x30, 0x60, 0x78, 0x00, 0x00, 0x00},  // 00b2 (uni00B2)
    {0x70, 0x18, 0x30, 0x18, 0x70, 0x00, 0x00, 0x00},  // 00b3 (uni00B3)
    {0x0c, 0x18, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00},  // 00b4 (acute)
    {0x00, 0x66, 0x66, 0x66, 0x66, 0x7c, 0x60, 0xc0},  // 00b5 (mu)
    {0x7f, 0xdb, 0xdb, 0x7b, 0x1b, 0x1b, 0x1b, 0x00},  // 00b6 (paragraph)
    {0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00},  // 00b7 (periodcentered)
    {0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x0c, 0x38},  // 00b8 (cedilla)
    {0x30, 0x70, 0x30, 0x30, 0x78, 0x00, 0x00, 0x00},  // 00b9 (uni00B9)
    {0x38, 0x6c, 0x6c, 0x38, 0x00, 0x7c, 0x00, 0x00},  // 00ba (ordmasculine)
    {0x00, 0xcc, 0x66, 0x33, 0x66, 0xcc, 0x00, 0x00},  // 00bb (guillemotright)
    {0xc3, 0xc6, 0xcc, 0xdb, 0x37, 0x6f, 0xcf, 0x03},  // 00bc (onequarter)
    {0xc3, 0xc6, 0xcc, 0xde, 0x33, 0x66, 0xcc, 0x0f},  // 00bd (onehalf)
    {0xe0, 0x33, 0x66, 0x3c, 0xfb, 0x37, 0x6f, 0xc3},  // 00be (threequarters)
    {0x30, 0x00, 0x30, 0x60, 0xc0, 0xcc, 0x78, 0x00},  // 00bf (questiondown)
    {0xc0, 0x38, 0x6c, 0xc6, 0xfe, 0xc6, 0xc6, 0x00},  // 00c0 (Agrave)
    {0x06, 0x38, 0x6c, 0xc6, 0xfe, 0xc6, 0xc6, 0x00},  // 00c1 (Aacute)
    {0x7c, 0xc6, 0x38, 0x6c, 0xc6, 0xfe, 0xc6, 0x00},  // 00c2 (Acircumflex)
    {0x76, 0xdc, 0x38, 0x6c, 0xc6, 0xfe, 0xc6, 0x00},  // 00c3 (Atilde)
    {0xc6, 0x38, 0x6c, 0xc6, 0xfe, 0xc6, 0xc6, 0x00},  // 00c4 (Adieresis)
    {0x30, 0x30, 0x00, 0x78, 0xcc, 0xfc, 0xcc, 0x00},  // 00c5 (Aring)
    {0x3e, 0x6c, 0xcc, 0xfe, 0xcc, 0xcc, 0xce, 0x00},  // 00c6 (AE)
    {0x78, 0xcc, 0xc0, 0xcc, 0x78, 0x18, 0x0c, 0x78},  // 00c7 (Ccedilla)
    {0xe0, 0x00, 0xfc, 0x60, 0x78, 0x60, 0xfc, 0x00},  // 00c8 (Egrave)
    {0x1c, 0x00, 0xfc, 0x60, 0x78, 0x60, 0xfc, 0x00},  // 00c9 (Eacute)
    {0x78, 0xcc, 0xfc, 0x60, 0x78, 0x60, 0xfc, 0x00},  // 00ca (Ecircumflex)
    {0xcc, 0x00, 0xfc, 0x60, 0x78, 0x60, 0xfc, 0x00},  // 00cb (Edieresis)
    {0xe0, 0x00, 0x78, 0x30, 0x30, 0x30, 0x78, 0x00},  // 00cc (Igrave)
    {0x1c, 0x00, 0x78, 0x30, 0x30, 0x30, 0x78, 0x00},  // 00cd (Iacute)
    {0x7e, 0xc3, 0x3c, 0x18, 0x18, 0x18, 0x3c, 0x00},  // 00ce (Icircumflex)
    {0xcc, 0x00, 0x78, 0x30, 0x30, 0x30, 0x78, 0x00},  // 00cf (Idieresis)
    {0xf8, 0x6c, 0x66, 0xf6, 0x66, 0x6c, 0xf8, 0x00},  // 00d0 (Eth)
    {0xfc, 0x00, 0xcc, 0xec, 0xfc, 0xdc, 0xcc, 0x00},  // 00d1 (Ntilde)
    {0xc0, 0x38, 0x6c, 0xc6, 0xc6, 0x6c, 0x38, 0x00},  // 00d2 (Ograve)
    {0x06, 0x38, 0x6c, 0xc6, 0xc6, 0x6c, 0x38, 0x00},  // 00d3 (Oacute)
    {0x7c, 0xc6, 0x38, 0x6c, 0xc6, 0x6c, 0x38, 0x00},  // 00d4 (Ocircumflex)
    {0x76, 0xdc, 0x38, 0x6c, 0xc6, 0x6c, 0x38, 0x00},  // 00d5 (Otilde)
    {0xc3, 0x18, 0x3c, 0x66, 0x66, 0x3c, 0x18, 0x00},  // 00d6 (Odieresis)
    {0x00, 0xc6, 0x6c, 0x38, 0x6c, 0xc6, 0x00, 0x00},  // 00d7 (multiply)
    {0x3a, 0x6c, 0xce, 0xd6, 0xe6, 0x6c, 0xb8, 0x00},  // 00d8 (Oslash)
    {0xe0, 0x00, 0xcc, 0xcc, 0xcc, 0xcc, 0x78, 0x00},  // 00d9 (Ugrave)
    {0x1c, 0x00, 0xcc, 0xcc, 0xcc, 0xcc, 0x78, 0x00},  // 00da (Uacute)
    {0x7c, 0xc6, 0x00, 0xc6, 0xc6, 0xc6, 0x7c, 0x00},  // 00db (Ucircumflex)
    {0xcc, 0x00, 0xcc, 0xcc, 0xcc, 0xcc, 0x78, 0x00},  // 00dc (Udieresis)
    {0x1c, 0x00, 0xcc, 0xcc, 0x78, 0x30, 0x78, 0x00},  // 00dd (Yacute)
    {0xf0, 0x60, 0x7c, 0x66, 0x7c, 0x60, 0xf0, 0x00},  // 00de (Thorn)
    {0x78, 0xcc, 0xcc, 0xd8, 0xcc, 0xc6, 0xcc, 0x00},  // 00df (germandbls)
    {0xe0, 0x00, 0x78, 0x0c, 0x7c, 0xcc, 0x7e, 0x00},  // 00e0 (agrave)
    {0x1c, 0x00, 0x78, 0x0c, 0x7c, 0xcc, 0x7e, 0x00},  // 00e1 (aacute)
    {0x7e, 0xc3, 0x3c, 0x06, 0x3e, 0x66, 0x3f, 0x00},  // 00e2 (acircumflex)
    {0x76, 0xdc, 0x78, 0x0c, 0x7c, 0xcc, 0x7e, 0x00},  // 00e3 (atilde)
    {0xcc, 0x00, 0x78, 0x0c, 0x7c, 0xcc, 0x7e, 0x00},  // 00e4 (adieresis)
    {0x30, 0x30, 0x78, 0x0c, 0x7c, 0xcc, 0x7e, 0x00},  // 00e5 (aring)
    {0x00, 0x00, 0x7f, 0x0c, 0x7f, 0xcc, 0x7f, 0x00},  // 00e6 (ae)
    {0x00, 0x00, 0x78, 0xc0, 0xc0, 0x78, 0x0c, 0x38},  // 00e7 (ccedilla)
    {0xe0, 0x00, 0x78, 0xcc, 0xfc, 0xc0, 0x78, 0x00},  // 00e8 (egrave)
    {0x1c, 0x00, 0x78, 0xcc, 0xfc, 0xc0, 0x78, 0x00},  // 00e9 (eacute)
    {0x7e, 0xc3, 0x3c, 0x66, 0x7e, 0x60, 0x3c, 0x00},  // 00ea (ecircumflex)
    {0xcc, 0x00, 0x78, 0xcc, 0xfc, 0xc0, 0x78, 0x00},  // 00eb (edieresis)
    {0xe0, 0x00, 0x70, 0x30, 0x30, 0x30, 0x78, 0x00},  // 00ec (igrave)
    {0x38, 0x00, 0x70, 0x30, 0x30, 0x30, 0x78, 0x00},  // 00ed (iacute)
    {0x7c, 0xc6, 0x38, 0x18, 0x18, 0x18, 0x3c, 0x00},  // 00ee (icircumflex)
    {0xcc, 0x00, 0x70, 0x30, 0x30, 0x30, 0x78, 0x00},  // 00ef (idieresis)
    {0x30, 0x7e, 0x0c, 0x7c, 0xcc, 0xcc, 0x78, 0x00},  // 00f0 (eth)
    {0x00, 0xf8, 0x00, 0xf8, 0xcc, 0xcc, 0xcc, 0x00},  // 00f1 (ntilde)
    {0x00, 0xe0, 0x00, 0x78, 0xcc, 0xcc, 0x78, 0x00},  // 00f2 (ograve)
    {0x00, 0x1c, 0x00, 0x78, 0xcc, 0xcc, 0x78, 0x00},  // 00f3 (oacute)
    {0x78, 0xcc, 0x00, 0x78, 0xcc, 0xcc, 0x78, 0x00},  // 00f4 (ocircumflex)
    {0x76, 0xdc, 0x00, 0x78, 0xcc, 0xcc, 0x78, 0x00},  // 00f5 (otilde)
    {0x00, 0xcc, 0x00, 0x78, 0xcc, 0xcc, 0x78, 0x00},  // 00f6 (odieresis)
    {0x30, 0x30, 0x00, 0xfc, 0x00, 0x30, 0x30, 0x00},  // 00f7 (divide)
    {0x00, 0x02, 0x7c, 0xce, 0xd6, 0xe6, 0x7c, 0x80},  // 00f8 (oslash)
    {0x00, 0xe0, 0x00, 0xcc, 0xcc, 0xcc, 0x7e, 0x00},  // 00f9 (ugrave)
    {0x00, 0x1c, 0x00, 0xcc, 0xcc, 0xcc, 0x7e, 0x00},  // 00fa (uacute)
    {0x78, 0xcc, 0x00, 0xcc, 0xcc, 0xcc, 0x7e, 0x00},  // 00fb (ucircumflex)
    {0x00, 0xcc, 0x00, 0xcc, 0xcc, 0xcc, 0x7e, 0x00},  // 00fc (udieresis)
    {0x00, 0x1c, 0x00, 0xcc, 0xcc, 0x7c, 0x0c, 0x78},  // 00fd (yacute)
    {0xe0, 0x60, 0x7c, 0x66, 0x66, 0x7c, 0x60, 0xf0},  // 00fe (thorn)
    {0x00, 0xcc, 0x00, 0xcc, 0xcc, 0x7c, 0x0c, 0xf8},  // 00ff (ydieresis)
};

int R[] = {2, 3, 4, 5, 6, 7, 8, 9};  
int C[] = {11, 12, 13, A0, A1, A2, A3, A4};

void display(uint8_t data[8][8]) {
  for (int c=0; c<8; c++) {
    digitalWrite(C[c], LOW);
    for(int r=0; r<8; r++) {
      digitalWrite(R[r], data[r][c]);
    }
    delay(1);
    clear();
  }
}

// https://docs.arduino.cc/learn/programming/bit-math#saving-memory-by-packing-multiple-data-items-in-a-single-byte
void display2(uint8_t data[8]) {
  for (int c=0; c<8; c++) {
    digitalWrite(C[c], LOW);
    // uint8_t bits[8] = {0, 0, 0, 0, 0, 0, 0, 0};
    for(int r=0; r<8; r++) {
      Serial.println(data[r], BIN);
      digitalWrite(R[r], data[r]);
      // bits[r] = data[r];
    }
    delay(1);
    clear();
  }
}

void display3(uint8_t *data) {
  for (int i=0; i<8; i++) {
    Serial.println(uint8_t(&data + i));
  }
}

void clear() {
  for (int i=0; i<8; i++) {
    digitalWrite(R[i], LOW);
    digitalWrite(C[i], HIGH);
  }
}

void setup() {
  // put your setup code here, to run once:
  for (int i=2; i<=9; i++) {
    pinMode(i, OUTPUT);
  }
  pinMode(11, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);
  pinMode(A0, OUTPUT);
  pinMode(A1, OUTPUT);
  pinMode(A2, OUTPUT);
  pinMode(A3, OUTPUT);
  pinMode(A4, OUTPUT);

  // digitalWrite(2, HIGH);
  // digitalWrite(3, HIGH);
  // digitalWrite(13, LOW);
  // digitalWrite(A0, LOW);
  // digitalWrite(A1, LOW);
  // digitalWrite(A2, LOW);

  Serial.begin(115200);
  display3(font8x8_ib8x8u[0x2d]);
}

void loop() {
  // put your main code here, to run repeatedly:
  // display2(font8x8_ib8x8u[0x2d]);
  // display3(font8x8_ib8x8u[0x2d]);
}