1_led_matrix: Game of Life example using LED matrix and removal of 4_switch_controlled_motor_normal and accordingly rearrange the rest of the folders (#172)

* 1_led_matrix: Game of Life example using LED matrix setup

* 1_led_matrix: rename project target

* create 1_led_matrix; remove 4_switch_motor_control_normal; update git accordingly;

* simplify frame logic

---------

Co-authored-by: atharva <62803658+vovw@users.noreply.github.com>

Author: 5iri

.github/workflows/test-build-app.yml

@@ -10,7 +10,7 @@ jobs:
       image: espressif/idf:release-v5.1
     strategy:
       matrix:
-        test-apps: [1_led_matrix, 2_LSA, 3_MPU, 5_PWM, 6_line_following, 7_self_balancing]
+        test-apps: [1_led_matrix, 2_LSA, 3_MPU, 4_PWM, 5_line_following, 6_self_balancing]
     steps:
       - name: Force Install GIT latest
         run: |

.gitmodules

@@ -1,6 +1,6 @@
 [submodule "components/sra-board-component"]
 	path = components/sra-board-component
 	url = https://github.com/SRA-VJTI/sra-board-component.git
-[submodule "8_self_balancing/components/websocket"]
-	path = 7_self_balancing/components/websocket
+[submodule "6_self_balancing/components/websocket"]
+	path = 6_self_balancing/components/websocket
 	url = https://github.com/Molorius/esp32-websocket.git

1_led_blink/README.md

@@ -4,4 +4,4 @@ cmake_minimum_required(VERSION 3.5)
 
 set(EXTRA_COMPONENT_DIRS ../components)
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
-project(blink_bar_graph_led)
+project(led_matrix_game_of_life)

1_led_blink/main/main.c

@@ -5,4 +5,4 @@ set(COMPONENT_PRIV_REQUIRES )
 set(COMPONENT_SRCS "main.c")
 set(COMPONENT_ADD_INCLUDEDIRS "")
 
-register_component()
+register_component()

1_led_blink/CMakeLists.txt 1_led_matrix/CMakeLists.txt1_led_blink/CMakeLists.txt renamed to 1_led_matrix/CMakeLists.txt

@@ -0,0 +1,70 @@
+#include <freertos/FreeRTOS.h>
+#include <freertos/task.h>
+#include <esp_log.h>
+#include <esp_err.h>
+#include "led_matrix.h"
+
+static const char *TAG = "led_matrix";
+
+static void blink_all(led_matrix *m)
+{
+    ESP_ERROR_CHECK(led_matrix_set_data_raw(m, 0xFFFFFFFF));
+    ESP_ERROR_CHECK(led_matrix_write(m, LED_MATRIX_OUTPUT_PAR));
+    vTaskDelay(pdMS_TO_TICKS(1500));
+
+    ESP_ERROR_CHECK(led_matrix_set_data_raw(m, 0x00000000));
+    ESP_ERROR_CHECK(led_matrix_write(m, LED_MATRIX_OUTPUT_PAR));
+    vTaskDelay(pdMS_TO_TICKS(200));
+}
+
+static void game_of_life(led_matrix *m, int rows, int cols, TickType_t frame_ms)
+{
+    // Fixed pattern chosen to give a long, interesting evolution
+    // on the 5x6 toroidal grid used by this project.
+    uint32_t frame = 0x0BFE020C;
+    uint32_t next = 0;
+
+    while (1) {
+        next = 0;
+
+        for (int r = 0; r < rows; r++) {
+            for (int c = 0; c < cols; c++) {
+
+                int idx = r * cols + c;
+                int alive = (frame >> idx) & 1;
+
+                int n = 0;
+                for (int dr = -1; dr <= 1; dr++)
+                    for (int dc = -1; dc <= 1; dc++) {
+                        if (dr == 0 && dc == 0) continue;
+                        int rr = (r + dr + rows) % rows;
+                        int cc = (c + dc + cols) % cols;
+                        int nidx = rr * cols + cc;
+                        n += (frame >> nidx) & 1;
+                    }
+
+                int new_state = alive ? (n == 2 || n == 3) : (n == 3);
+
+                if (new_state) {
+                    next |= (1UL << idx);
+                }
+            }
+        }
+
+        frame = next;
+
+        ESP_ERROR_CHECK(led_matrix_set_data(m, frame));
+        ESP_ERROR_CHECK(led_matrix_write(m, LED_MATRIX_OUTPUT_PAR));
+        vTaskDelay(pdMS_TO_TICKS(frame_ms));
+    }
+}
+
+void app_main(void)
+{
+    led_matrix m = led_matrix_init();
+    ESP_LOGI(TAG, "Shift register pins -> SDATA: %d, SRCLK: %d, RCLK: %d",
+             m.config.sdata, m.config.srclk, m.config.rclk);
+
+    blink_all(&m);
+    game_of_life(&m, CONFIG_LED_MATRIX_ROWS, CONFIG_LED_MATRIX_COLUMNS, 150);
+}