Add Serial Terminal App & WebUi Theme

components/sys_cli/sys_cli.c

@@ -4,6 +4,7 @@
 #include "os_gfx.h"
 #include "os_oled.h"
 #include "os_status.h"
+#include "sys_uart.h"
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
@@ -15,6 +16,45 @@
 
 static const char *TAG = "SYS_CLI";
 
+static int cmd_uart(int argc, char **argv)
+{
+    if (argc < 2) {
+        printf("Usage: uart <send <msg> | baud <rate> | stats | clear>\n");
+        return 1;
+    }
+
+    if (strcmp(argv[1], "send") == 0 && argc >= 3) {
+        sys_uart_write_str(argv[2]);
+        sys_uart_write_str("\r\n");
+        printf("Sent over UART TX: %s\n", argv[2]);
+        return 0;
+    } else if (strcmp(argv[1], "baud") == 0 && argc >= 3) {
+        uint32_t baud = (uint32_t)strtoul(argv[2], NULL, 10);
+        if (baud > 0 && sys_uart_set_baud_rate(baud) == ESP_OK) {
+            printf("UART baud rate changed to %lu\n", (unsigned long)baud);
+            return 0;
+        } else {
+            printf("Failed to set baud rate\n");
+            return 1;
+        }
+    } else if (strcmp(argv[1], "stats") == 0) {
+        uint32_t rx = 0, tx = 0;
+        sys_uart_get_stats(&rx, &tx);
+        printf("\n=== UART Status (TX: GPIO 21, RX: GPIO 20) ===\n");
+        printf("Active Baud Rate: %lu\n", (unsigned long)sys_uart_get_baud_rate());
+        printf("Total RX Bytes:   %lu\n", (unsigned long)rx);
+        printf("Total TX Bytes:   %lu\n", (unsigned long)tx);
+        return 0;
+    } else if (strcmp(argv[1], "clear") == 0) {
+        sys_uart_clear_rx_buffer();
+        printf("UART RX buffer cleared\n");
+        return 0;
+    }
+
+    printf("Unknown uart sub-command\n");
+    return 1;
+}
+
 static int cmd_ps(int argc, char **argv)
 {
     printf("\n=== Running FreeRTOS Tasks ===\n");
@@ -178,6 +218,14 @@ esp_err_t sys_cli_init(void)
     };
     esp_console_cmd_register(&reboot_cmd);
 
+    const esp_console_cmd_t uart_cmd = {
+        .command = "uart",
+        .help = "Hardware UART control (send, baud, stats, clear)",
+        .hint = "<send|baud|stats|clear>",
+        .func = &cmd_uart,
+    };
+    esp_console_cmd_register(&uart_cmd);
+
     err = esp_console_start_repl(repl);
     if (err != ESP_OK) {
         ESP_LOGE(TAG, "Failed to start USB Serial/JTAG REPL: %s", esp_err_to_name(err));