comparing d972e9be61cd96fe47869e184ca58b61a86bc5ed and main on dunkirk.sh/daedalus

+5 -1

README.md

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       # Usage

     

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       -
       Eventually you should download the bin from the releases and copy it to your board and then follow the vim plugin steps i will add below.

     

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       +
       So the orginal goal was for keystrokes to make a nice pattern in your status bar as well as on the led matrix of daedalus but I couldn't get the serial to work from vim; not entirely sure why but it really doesn't like this for some reason.

     

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       +
       

     

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       What I do have instead is firmware for random led blinking when a serial character is detected and a vim plugin that displays random braille characters in the status bar.

     

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       You can read the [plugin](/lua/braille_indicator/README.md) for more information on installation and for the firmware you can use any serial interface set to a `115200` baud rate (screen for example `screen /dev/tty.usbmodem101 115200`).

     

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       <p align="center">

     

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       	<img src="https://raw.githubusercontent.com/taciturnaxolotl/carriage/main/.github/images/line-break.svg" />

firmware/CMakeLists.txt

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           pico_stdlib

     

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           hardware_gpio

     

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           hardware_uart

     

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       +
           hardware_pwm

     

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           pico_multicore

     

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       )

     

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+97 -63

firmware/src/main.cpp

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       #include <stdlib.h>

     

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       #include <cstring>

     

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       #include <stdio.h>

     

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       #include "pico/multicore.h"

     

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       #include "pico/stdlib.h"

     

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       #include <time.h>

     

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       // Define GPIO pins for rows and columns

     

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       const uint ROW_PINS[4] = {12, 13, 14, 15};

     

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       const uint COL_PINS[6] = {17, 18, 19, 20, 21, 22};

     

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       #define ROWS 4

     

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       #define COLS 6

     

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       const uint ROW_PINS[4] = {12, 13, 14, 15};

     

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       const uint COL_PINS[6] = {17, 18, 19, 20, 21, 22};

     

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       // LED state matrix

     

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       uint8_t led_states[ROWS][COLS] = {0};

     

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       void setup_pins() {

     

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         // Set up row pins

     

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         for (int i = 0; i < ROWS; i++) {

     

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           gpio_init(ROW_PINS[i]);

     

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           gpio_set_dir(ROW_PINS[i], GPIO_OUT);

     

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           gpio_put(ROW_PINS[i], 0);  // Start with LEDs off

     

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         }

     

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       // brightness control

     

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       uint8_t brightness = 100;

     

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         // Set up column pins

     

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         for (int j = 0; j < COLS; j++) {

     

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           gpio_init(COL_PINS[j]);

     

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           gpio_set_dir(COL_PINS[j], GPIO_OUT);

     

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           gpio_put(COL_PINS[j], 1);  // Start with LEDs off

     

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       // timing vars

     

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       bool fading = false;

     

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       absolute_time_t last_char_time;

     

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       absolute_time_t fade_start_time;

     

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       const uint32_t inactivity_timeout_ms = 0;

     

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       const uint32_t fade_duration_ms = 1200;

     

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       void randomize_matrix() {

     

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         for (int row = 0; row < ROWS; row++) {

     

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           for (int col = 0; col < COLS; col++) {

     

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             led_states[row][col] = rand() % 2;

     

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           }

     

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         }

     

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       }

     

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···

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         last_update = current_time;

     

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         // Display the current state

     

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         for (int row = 0; row < ROWS; row++) {

     

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           // Set row active

     

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           gpio_put(ROW_PINS[row], 1);

     

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         uint32_t time_since_last_char = absolute_time_diff_us(last_char_time, get_absolute_time()) / 1000;

     

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           // Set column states for this row

     

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           for (int col = 0; col < COLS; col++) {

     

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             // LED on = column LOW, LED off = column HIGH

     

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             gpio_put(COL_PINS[col], led_states[row][col] ? 0 : 1);

     

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           }

     

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         if (!fading && time_since_last_char > inactivity_timeout_ms) {

     

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           // start fading

     

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           fading = true;

     

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           fade_start_time = get_absolute_time();

     

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         }

     

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           // Small delay for this row to be visible

     

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           sleep_us(100);

     

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         if (fading) {

     

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           uint32_t fade_elapsed_ms = absolute_time_diff_us(fade_start_time, get_absolute_time()) / 1000;

     

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           // Deactivate row

     

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           gpio_put(ROW_PINS[row], 0);

     

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           if (fade_elapsed_ms >= fade_duration_ms) {

     

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             brightness = 0;

     

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           } else {

     

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             brightness = 100 - ((fade_elapsed_ms * 100) / fade_duration_ms);

     

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           }

     

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         }

     

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       -
       }

     

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       // Function to set a specific LED state

     

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       void set_led(int row, int col, bool state) {

     

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         if (row >= 0 && row < ROWS && col >= 0 && col < COLS) {

     

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           led_states[row][col] = state ? 1 : 0;

     

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         // Skip display update if brightness is 0

     

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         if (brightness == 0) {

     

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           // Turn off all rows and set all columns high to ensure LEDs are off

     

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           for (int i = 0; i < ROWS; i++) {

     

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             gpio_put(ROW_PINS[i], 0);

     

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           }

     

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           for (int j = 0; j < COLS; j++) {

     

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             gpio_put(COL_PINS[j], 1);

     

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           }

     

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           return;

     

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         }

     

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       }

     

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       // Function to set the entire matrix state

     

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       void set_matrix_state(const uint8_t new_state[ROWS][COLS]) {

     

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         memcpy(led_states, new_state, sizeof(led_states));

     

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       -
       }

     

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         // Software PWM cycle

     

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         for (uint8_t pwm_cycle = 0; pwm_cycle < brightness; pwm_cycle++) {

     

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           // For each row

     

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           for (int row = 0; row < ROWS; row++) {

     

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             // Activate row

     

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             gpio_put(ROW_PINS[row], 1);

     

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       -
       void random_state(float density) {

     

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         // clamp

     

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         if (density > 1.0f)

     

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           density = 1.0f;

     

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         if (density < 0.0f)

     

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           density = 0.0f;

     

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             // Set column states for this row

     

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             for (int col = 0; col < COLS; col++) {

     

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               gpio_put(COL_PINS[col], led_states[row][col] ? 0 : 1);

     

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             }

     

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       -
         for (int row = 0; row < ROWS; row++) {

     

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           for (int col = 0; col < COLS; col++) {

     

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             float r = (float)rand() / (float)RAND_MAX;

     

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             led_states[row][col] = (r < density) ? 1 : 0;

     

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             // Keep row active for a short time

     

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             sleep_us(50);

     

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             // Deactivate row

     

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             gpio_put(ROW_PINS[row], 0);

     

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           }

     

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         }

     

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       }

     

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       const uint8_t ALL_ON[ROWS][COLS] = {{1, 1, 1, 1, 1, 1},

     

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                                           {1, 1, 1, 1, 1, 1},

     

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                                           {1, 1, 1, 1, 1, 1},

     

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                                           {1, 1, 1, 1, 1, 1}};

     

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       void setup_pins() {

     

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         // Set up row pins

     

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         for (int i = 0; i < ROWS; i++) {

     

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           gpio_init(ROW_PINS[i]);

     

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           gpio_set_dir(ROW_PINS[i], GPIO_OUT);

     

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           gpio_put(ROW_PINS[i], 0);  // Start with LEDs off

     

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         }

     

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       const uint8_t ALL_OFF[ROWS][COLS] = {{0, 0, 0, 0, 0, 0},

     

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                                            {0, 0, 0, 0, 0, 0},

     

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                                            {0, 0, 0, 0, 0, 0},

     

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                                            {0, 0, 0, 0, 0, 0}};

     

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         // Set up column pins

     

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         for (int j = 0; j < COLS; j++) {

     

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           gpio_init(COL_PINS[j]);

     

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           gpio_set_dir(COL_PINS[j], GPIO_OUT);

     

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           gpio_put(COL_PINS[j], 1);  // Start with LEDs off

     

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         }

     

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       }

     

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       void core1_main() {

     

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         while (true) {

     

       105
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       -
           update_led_display(1000);

     

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           update_led_display(1000);  // Update at 60Hz for smoother display

     

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       +
           sleep_ms(1);  // Small delay to prevent tight loop

     

       106
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         }

     

       107
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       }

     

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···

       110
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         stdio_init_all();

     

       111
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         setup_pins();

     

       112
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       +
         // seed the random number generator

     

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         srand(time_us_32());

     

       131
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       +
       

     

       132
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       +
         last_char_time = get_absolute_time();

     

       133
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       +
       

     

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         multicore_launch_core1(core1_main);

     

       114
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       115
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         while (true) {

     

       116
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       -
           random_state(0.5);  // Turn random LEDs ON

     

       117
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       -
           // set_matrix_state(ALL_ON);

     

       118
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           sleep_ms(200);

     

       119
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       -
           // set_matrix_state(ALL_OFF);

     

       120
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       -
           // sleep_ms(500);

     

       137
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       +
           // check if there are characters available from the input

     

       138
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       +
           int c = getchar_timeout_us(0);

     

       139
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       +
       

     

       140
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       +
           if (c != PICO_ERROR_TIMEOUT) {

     

       141
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       +
             // echo char back

     

       142
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       +
             printf("%c", c);

     

       143
       143
       +
       

     

       144
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       +
             last_char_time = get_absolute_time();

     

       145
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       +
       

     

       146
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       +
             fading = false;

     

       147
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       +
             brightness = 100;

     

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       +
       

     

       149
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       +
             randomize_matrix();

     

       150
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       +
       

     

       151
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       +
             while (getchar_timeout_us(0) != PICO_ERROR_TIMEOUT) {}

     

       152
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       +
           }

     

       153
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       +
       

     

       154
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       +
           sleep_ms(10);

     

       121
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         }

     

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       }

+78

lua/braille_indicator/README.md

···

       1
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       +
       # Braille Typing Indicator Plugin for Neovim

     

       2
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       +
       

     

       3
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       +
       A simple plugin that displays a random Braille character in your statusline that changes every time you type.

     

       4
       4
       +
       

     

       5
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       +
       ## Installation

     

       6
       6
       +
       

     

       7
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       +
       ### Using a plugin manager (recommended)

     

       8
       8
       +
       

     

       9
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       +
       #### [packer.nvim](https://github.com/wbthomason/packer.nvim)

     

       10
       10
       +
       

     

       11
       11
       +
       ```lua

     

       12
       12
       +
       use {

     

       13
       13
       +
         'taciturnaxolotl/daedalus',

     

       14
       14
       +
         config = function()

     

       15
       15
       +
           require('braille_indicator').setup()

     

       16
       16
       +
         end

     

       17
       17
       +
       }

     

       18
       18
       +
       ```

     

       19
       19
       +
       

     

       20
       20
       +
       #### [lazy.nvim](https://github.com/folke/lazy.nvim)

     

       21
       21
       +
       

     

       22
       22
       +
       ```lua

     

       23
       23
       +
       {

     

       24
       24
       +
         'taciturnaxolotl/daedalus',

     

       25
       25
       +
         config = function()

     

       26
       26
       +
           require('braille_indicator').setup()

     

       27
       27
       +
         end

     

       28
       28
       +
       }

     

       29
       29
       +
       ```

     

       30
       30
       +
       

     

       31
       31
       +
       ### Manual installation

     

       32
       32
       +
       

     

       33
       33
       +
       1. Clone this repository to your Neovim configuration directory:

     

       34
       34
       +
       

     

       35
       35
       +
          ```

     

       36
       36
       +
          git clone https://github.com/taciturnaxolotl/daedalus.git ~/.config/nvim/pack/plugins/start/daedalus

     

       37
       37
       +
          ```

     

       38
       38
       +
       

     

       39
       39
       +
       2. Add the following to your `init.lua`:

     

       40
       40
       +
          ```lua

     

       41
       41
       +
          require('braille_indicator').setup()

     

       42
       42
       +
          ```

     

       43
       43
       +
       

     

       44
       44
       +
       ## Configuration

     

       45
       45
       +
       

     

       46
       46
       +
       The plugin works with minimal configuration, but you can customize it:

     

       47
       47
       +
       

     

       48
       48
       +
       ```lua

     

       49
       49
       +
       require('braille_indicator').setup({

     

       50
       50
       +
         update_statusline = true,  -- Automatically update the statusline

     

       51
       51
       +
         verbose = true,            -- Show setup messages

     

       52
       52
       +
       })

     

       53
       53
       +
       ```

     

       54
       54
       +
       

     

       55
       55
       +
       ### Adding to your statusline

     

       56
       56
       +
       

     

       57
       57
       +
       If you're using a custom statusline setup, add the Braille indicator with:

     

       58
       58
       +
       

     

       59
       59
       +
       ```lua

     

       60
       60
       +
       %{v:lua.getBrailleIndicator()}

     

       61
       61
       +
       ```

     

       62
       62
       +
       

     

       63
       63
       +
       For example, with lualine:

     

       64
       64
       +
       

     

       65
       65
       +
       ```lua

     

       66
       66
       +
       require('lualine').setup({

     

       67
       67
       +
         sections = {

     

       68
       68
       +
           lualine_a = {

     

       69
       69
       +
             function()

     

       70
       70
       +
               return getBrailleIndicator()

     

       71
       71
       +
             end,

     

       72
       72
       +
             'mode'

     

       73
       73
       +
           },

     

       74
       74
       +
           -- other sections...

     

       75
       75
       +
         }

     

       76
       76
       +
       })

     

       77
       77
       +
       ```

     

       78
       78
       +

+77

lua/braille_indicator/init.lua

···

       1
       1
       +
       -- Braille Typing Indicator Plugin for Neovim

     

       2
       2
       +
       -- This is a proper plugin structure for installation in your Neovim config

     

       3
       3
       +
       

     

       4
       4
       +
       local M = {}

     

       5
       5
       +
       

     

       6
       6
       +
       -- Braille unicode characters (⠀ to ⣿)

     

       7
       7
       +
       local brailleChars = {

     

       8
       8
       +
         '⠀', '⠁', '⠂', '⠃', '⠄', '⠅', '⠆', '⠇', '⠈', '⠉', '⠊', '⠋', '⠌', '⠍', '⠎', '⠏',

     

       9
       9
       +
         '⠐', '⠑', '⠒', '⠓', '⠔', '⠕', '⠖', '⠗', '⠘', '⠙', '⠚', '⠛', '⠜', '⠝', '⠞', '⠟',

     

       10
       10
       +
         '⠠', '⠡', '⠢', '⠣', '⠤', '⠥', '⠦', '⠧', '⠨', '⠩', '⠪', '⠫', '⠬', '⠭', '⠮', '⠯',

     

       11
       11
       +
         '⠰', '⠱', '⠲', '⠳', '⠴', '⠵', '⠶', '⠷', '⠸', '⠹', '⠺', '⠻', '⠼', '⠽', '⠾', '⠿',

     

       12
       12
       +
         '⡀', '⡁', '⡂', '⡃', '⡄', '⡅', '⡆', '⡇', '⡈', '⡉', '⡊', '⡋', '⡌', '⡍', '⡎', '⡏',

     

       13
       13
       +
         '⡐', '⡑', '⡒', '⡓', '⡔', '⡕', '⡖', '⡗', '⡘', '⡙', '⡚', '⡛', '⡜', '⡝', '⡞', '⡟',

     

       14
       14
       +
         '⡠', '⡡', '⡢', '⡣', '⡤', '⡥', '⡦', '⡧', '⡨', '⡩', '⡪', '⡫', '⡬', '⡭', '⡮', '⡯',

     

       15
       15
       +
         '⡰', '⡱', '⡲', '⡳', '⡴', '⡵', '⡶', '⡷', '⡸', '⡹', '⡺', '⡻', '⡼', '⡽', '⡾', '⡿',

     

       16
       16
       +
         '⢀', '⢁', '⢂', '⢃', '⢄', '⢅', '⢆', '⢇', '⢈', '⢉', '⢊', '⢋', '⢌', '⢍', '⢎', '⢏',

     

       17
       17
       +
         '⢐', '⢑', '⢒', '⢓', '⢔', '⢕', '⢖', '⢗', '⢘', '⢙', '⢚', '⢛', '⢜', '⢝', '⢞', '⢟',

     

       18
       18
       +
         '⢠', '⢡', '⢢', '⢣', '⢤', '⢥', '⢦', '⢧', '⢨', '⢩', '⢪', '⢫', '⢬', '⢭', '⢮', '⢯',

     

       19
       19
       +
         '⢰', '⢱', '⢲', '⢳', '⢴', '⢵', '⢶', '⢷', '⢸', '⢹', '⢺', '⢻', '⢼', '⢽', '⢾', '⢿',

     

       20
       20
       +
         '⣀', '⣁', '⣂', '⣃', '⣄', '⣅', '⣆', '⣇', '⣈', '⣉', '⣊', '⣋', '⣌', '⣍', '⣎', '⣏',

     

       21
       21
       +
         '⣐', '⣑', '⣒', '⣓', '⣔', '⣕', '⣖', '⣗', '⣘', '⣙', '⣚', '⣛', '⣜', '⣝', '⣞', '⣟',

     

       22
       22
       +
         '⣠', '⣡', '⣢', '⣣', '⣤', '⣥', '⣦', '⣧', '⣨', '⣩', '⣪', '⣫', '⣬', '⣭', '⣮', '⣯',

     

       23
       23
       +
         '⣰', '⣱', '⣲', '⣳', '⣴', '⣵', '⣶', '⣷', '⣸', '⣹', '⣺', '⣻', '⣼', '⣽', '⣾', '⣿'

     

       24
       24
       +
       }

     

       25
       25
       +
       

     

       26
       26
       +
       -- Current braille character

     

       27
       27
       +
       local currentBraille = brailleChars[1]

     

       28
       28
       +
       

     

       29
       29
       +
       -- Update braille character randomly

     

       30
       30
       +
       local function updateBrailleChar()

     

       31
       31
       +
         -- Use os.time() for randomness

     

       32
       32
       +
         math.randomseed(os.time() * 1000 + os.clock() * 10000)

     

       33
       33
       +
         local idx = math.random(1, #brailleChars)

     

       34
       34
       +
         currentBraille = brailleChars[idx]

     

       35
       35
       +
         return currentBraille

     

       36
       36
       +
       end

     

       37
       37
       +
       

     

       38
       38
       +
       -- Get current braille character for statusline

     

       39
       39
       +
       function M.getBrailleIndicator()

     

       40
       40
       +
         return currentBraille

     

       41
       41
       +
       end

     

       42
       42
       +
       

     

       43
       43
       +
       -- Setup function with options

     

       44
       44
       +
       function M.setup(opts)

     

       45
       45
       +
         opts = opts or {}

     

       46
       46
       +
         

     

       47
       47
       +
         -- Make sure statusline is visible

     

       48
       48
       +
         vim.o.laststatus = 2

     

       49
       49
       +
         

     

       50
       50
       +
         -- Key press handler

     

       51
       51
       +
         local function onKeyPress()

     

       52
       52
       +
           -- Update braille character

     

       53
       53
       +
           updateBrailleChar()

     

       54
       54
       +
         end

     

       55
       55
       +
         

     

       56
       56
       +
         -- Set up autocommands

     

       57
       57
       +
         vim.api.nvim_create_autocmd({"InsertCharPre", "CursorMovedI"}, {

     

       58
       58
       +
           callback = onKeyPress,

     

       59
       59
       +
           group = vim.api.nvim_create_augroup("BrailleIndicator", { clear = true })

     

       60
       60
       +
         })

     

       61
       61
       +
         

     

       62
       62
       +
         -- Make the function available globally for statusline

     

       63
       63
       +
         _G.getBrailleIndicator = M.getBrailleIndicator

     

       64
       64
       +
         

     

       65
       65
       +
         -- Add to statusline if requested

     

       66
       66
       +
         if opts.update_statusline then

     

       67
       67
       +
           vim.o.statusline = "%{v:lua.getBrailleIndicator()} %f %m %r %= %l,%c "

     

       68
       68
       +
         end

     

       69
       69
       +
         

     

       70
       70
       +
         -- Print setup message

     

       71
       71
       +
         if opts.verbose then

     

       72
       72
       +
           print("Braille indicator active. The character will change as you type.")

     

       73
       73
       +
           print("Add %{v:lua.getBrailleIndicator()} to your statusline if not already there.")

     

       74
       74
       +
         end

     

       75
       75
       +
       end

     

       76
       76
       +
       

     

       77
       77
       +
       return M

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