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‎Gemma/Trinket_Gemma_Space_Invader_Pendant/Trinket_Gemma_Space_Invader_Pendant.ino‎

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// SPDX-FileCopyrightText: 2018 Mikey Sklar for Adafruit Industries
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//
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// SPDX-License-Identifier: MIT
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// Trinket/Gemma + LED matrix backpack jewelry. Plays animated
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// sequence on LED matrix. Press reset button to display again,
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// or add optional momentary button between pin #1 and +V.
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// THERE IS NO ANIMATION DATA IN THIS SOURCE FILE, you should
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// rarely need to change anything here. EDIT anim.h INSTEAD.
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#define BRIGHTNESS 12 // 0=min, 15=max
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#define I2C_ADDR 0x70 // Edit if backpack A0/A1 jumpers set
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#include <Wire.h>
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#include <avr/power.h>
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#include <avr/sleep.h>
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#include "anim.h" // Animation data is located here
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static const uint8_t PROGMEM reorder[] = { // Column-reordering table
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0x00,0x40,0x20,0x60,0x10,0x50,0x30,0x70,0x08,0x48,0x28,0x68,0x18,0x58,0x38,0x78,
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0x04,0x44,0x24,0x64,0x14,0x54,0x34,0x74,0x0c,0x4c,0x2c,0x6c,0x1c,0x5c,0x3c,0x7c,
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0x02,0x42,0x22,0x62,0x12,0x52,0x32,0x72,0x0a,0x4a,0x2a,0x6a,0x1a,0x5a,0x3a,0x7a,
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0x06,0x46,0x26,0x66,0x16,0x56,0x36,0x76,0x0e,0x4e,0x2e,0x6e,0x1e,0x5e,0x3e,0x7e,
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0x01,0x41,0x21,0x61,0x11,0x51,0x31,0x71,0x09,0x49,0x29,0x69,0x19,0x59,0x39,0x79,
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0x05,0x45,0x25,0x65,0x15,0x55,0x35,0x75,0x0d,0x4d,0x2d,0x6d,0x1d,0x5d,0x3d,0x7d,
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0x03,0x43,0x23,0x63,0x13,0x53,0x33,0x73,0x0b,0x4b,0x2b,0x6b,0x1b,0x5b,0x3b,0x7b,
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0x07,0x47,0x27,0x67,0x17,0x57,0x37,0x77,0x0f,0x4f,0x2f,0x6f,0x1f,0x5f,0x3f,0x7f,
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0x80,0xc0,0xa0,0xe0,0x90,0xd0,0xb0,0xf0,0x88,0xc8,0xa8,0xe8,0x98,0xd8,0xb8,0xf8,
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0x84,0xc4,0xa4,0xe4,0x94,0xd4,0xb4,0xf4,0x8c,0xcc,0xac,0xec,0x9c,0xdc,0xbc,0xfc,
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0x82,0xc2,0xa2,0xe2,0x92,0xd2,0xb2,0xf2,0x8a,0xca,0xaa,0xea,0x9a,0xda,0xba,0xfa,
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0x86,0xc6,0xa6,0xe6,0x96,0xd6,0xb6,0xf6,0x8e,0xce,0xae,0xee,0x9e,0xde,0xbe,0xfe,
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0x81,0xc1,0xa1,0xe1,0x91,0xd1,0xb1,0xf1,0x89,0xc9,0xa9,0xe9,0x99,0xd9,0xb9,0xf9,
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0x85,0xc5,0xa5,0xe5,0x95,0xd5,0xb5,0xf5,0x8d,0xcd,0xad,0xed,0x9d,0xdd,0xbd,0xfd,
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0x83,0xc3,0xa3,0xe3,0x93,0xd3,0xb3,0xf3,0x8b,0xcb,0xab,0xeb,0x9b,0xdb,0xbb,0xfb,
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0x87,0xc7,0xa7,0xe7,0x97,0xd7,0xb7,0xf7,0x8f,0xcf,0xaf,0xef,0x9f,0xdf,0xbf,0xff };
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void ledCmd(uint8_t x) { // Issue command to LED backback driver
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Wire.beginTransmission(I2C_ADDR);
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Wire.write(x);
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Wire.endTransmission();
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}
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void clear(void) { // Clear display buffer
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Wire.beginTransmission(I2C_ADDR);
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for(uint8_t i=0; i<17; i++) Wire.write(0);
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Wire.endTransmission();
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}
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void setup() {
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power_timer1_disable(); // Disable unused peripherals
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power_adc_disable(); // to save power
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PCMSK |= _BV(PCINT1); // Set change mask for pin 1
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Wire.begin(); // I2C init
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clear(); // Blank display
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ledCmd(0x21); // Turn on oscillator
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ledCmd(0xE0 | BRIGHTNESS); // Set brightness
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ledCmd(0x81); // Display on, no blink
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}
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uint8_t rep = REPS;
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void loop() {
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for(int i=0; i<sizeof(anim); i) { // For each frame...
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Wire.beginTransmission(I2C_ADDR);
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Wire.write(0); // Start address
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for(uint8_t j=0; j<8; j++) { // 8 rows...
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Wire.write(pgm_read_byte(&reorder[pgm_read_byte(&anim[i++])]));
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Wire.write(0);
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}
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Wire.endTransmission();
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delay(pgm_read_byte(&anim[i++]) * 10);
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}
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if(!--rep) { // If last cycle...
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ledCmd(0x20); // LED matrix in standby mode
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GIMSK = _BV(PCIE); // Enable pin change interrupt
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power_all_disable(); // All peripherals off
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set_sleep_mode(SLEEP_MODE_PWR_DOWN);
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sleep_enable();
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sei(); // Keep interrupts enabled
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sleep_mode(); // Power down CPU (pin 1 will wake)
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// Execution resumes here on wake.
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GIMSK = 0; // Disable pin change interrupt
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rep = REPS; // Reset animation counter
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power_timer0_enable(); // Re-enable timer
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power_usi_enable(); // Re-enable USI
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Wire.begin(); // Re-init I2C
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clear(); // Blank display
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ledCmd(0x21); // Re-enable matrix
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}
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}
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ISR(PCINT0_vect) {} // Button tap

‎Gemma/Trinket_Gemma_Space_Invader_Pendant/anim.h‎

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// SPDX-FileCopyrightText: 2018 Mikey Sklar for Adafruit Industries
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//
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// SPDX-License-Identifier: MIT
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// Animation data for Trinket/Gemma + LED matrix backpack jewelry.
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// Edit this file to change the animation; it's unlikely you'll need
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// to edit the source code.
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#define REPS 3 // Number of times to repeat the animation loop (1-255)
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const uint8_t PROGMEM anim[] = {
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// Animation bitmaps. Each frame of animation MUST contain
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// 8 lines of graphics data (there is no error checking for
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// length). Each line should be prefixed with the letter 'B',
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// followed by exactly 8 binary digits (0 or 1), no more,
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// no less (again, no error checking). '0' represents an
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// 'off' pixel, '1' an 'on' pixel. End line with a comma.
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B00011000, // This is the first frame for alien #1
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B00111100, // If you squint you can kind of see the
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B01111110, // image in the 0's and 1's.
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B11011011,
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B11111111,
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B00100100,
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B01011010,
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B10100101,
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// The 9th line (required) is the time to display this frame,
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// in 1/100ths of a second (e.g. 100 = 1 sec, 25 = 1/4 sec,
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// etc.). Range is 0 (no delay) to 255 (2.55 seconds). If
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// longer delays are needed, make duplicate frames.
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25, // 0.25 seconds
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B00011000, // This is the second frame for alien #1
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B00111100,
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B01111110,
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B11011011,
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B11111111,
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B00100100,
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B01011010,
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B01000010,
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25, // 0.25 second delay
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// Frames 3 & 4 for alien #1 are duplicates of frames 1 & 2.
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// Rather than list them 'the tall way' again, the lines are merged here...
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B00011000, B00111100, B01111110, B11011011, B11111111, B00100100, B01011010, B10100101, 25,
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B00011000, B00111100, B01111110, B11011011, B11111111, B00100100, B01011010, B01000010, 25,
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B00000000, // First frame for alien #2
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B00111100,
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B01111110,
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B11011011,
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B11011011,
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B01111110,
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B00100100,
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B11000011,
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25, // 0.25 second delay
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B00111100, // Second frame for alien #2
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B01111110,
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B11011011,
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B11011011,
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B01111110,
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B00100100,
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B00100100,
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B00100100,
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25,
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// Frames 3 & 4 for alien #2 are duplicates of frames 1 & 2
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B00000000, B00111100, B01111110, B11011011, B11011011, B01111110, B00100100, B11000011, 25,
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B00111100, B01111110, B11011011, B11011011, B01111110, B00100100, B00100100, B00100100, 25,
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B00100100, // First frame for alien #3
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B00100100,
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B01111110,
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B11011011,
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B11111111,
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B11111111,
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B10100101,
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B00100100,
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25,
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B00100100, // Second frame for alien #3
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B10100101,
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B11111111,
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B11011011,
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B11111111,
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B01111110,
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B00100100,
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B01000010,
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25,
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// Frames are duplicated as with prior aliens
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B00100100, B00100100, B01111110, B11011011, B11111111, B11111111, B10100101, B00100100, 25,
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B00100100, B10100101, B11111111, B11011011, B11111111, B01111110, B00100100, B01000010, 25,
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B00111100, // First frame for alien #4
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B01111110,
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B00110011,
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B01111110,
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B00111100,
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B00000000,
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B00001000,
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B00000000,
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12, // ~1/8 second delay
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B00111100, // Second frame for alien #4
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B01111110,
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B10011001,
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B01111110,
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B00111100,
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B00000000,
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B00001000,
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B00001000,
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12,
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B00111100, // Third frame for alien #4 (NOT a repeat of frame 1)
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B01111110,
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B11001100,
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B01111110,
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B00111100,
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B00000000,
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B00000000,
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B00001000,
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12,
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B00111100, // Fourth frame for alien #4 (NOT a repeat of frame 2)
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B01111110,
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B01100110,
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B01111110,
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B00111100,
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B00000000,
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B00000000,
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B00000000,
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12,
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// Frames 5-8 are duplicates of 1-4, lines merged for brevity
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B00111100, B01111110, B00110011, B01111110, B00111100, B00000000, B00001000, B00000000, 12,
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B00111100, B01111110, B10011001, B01111110, B00111100, B00000000, B00001000, B00001000, 12,
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B00111100, B01111110, B11001100, B01111110, B00111100, B00000000, B00000000, B00001000, 12,
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B00111100, B01111110, B01100110, B01111110, B00111100, B00000000, B00000000, B00000000, 12,
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};

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