doma 13_11_2025

hod5a/main.cpp

@@ -0,0 +1,58 @@
+// main.cpp
+
+#include "mbed.h"
+
+#define MAXIMUM_BUFFER_SIZE 32
+
+DigitalOut led1(LED1);
+static BufferedSerial serial_port(USBTX, USBRX);
+
+class Led {
+private:
+    Ticker ticker;
+    bool ledState;
+
+public:
+    Led() : ledState(false) {
+        led1 = ledState;
+    }
+
+    void setBlinkPeriod(float period) {
+        ticker.detach();
+        ticker.attach(callback(this, &Led::tickerHandler), period / 2.0f);
+    }
+
+    void tickerHandler() {
+        ledState = !ledState;
+        led1 = ledState;
+    }
+};
+
+int main()
+{
+    serial_port.set_baud(9600);
+    serial_port.set_format(
+        /* bits */ 8,
+        /* parity */ BufferedSerial::None,
+        /* stop bit */ 1
+    );
+
+    char buf[MAXIMUM_BUFFER_SIZE] = {0};
+    Led ledController;
+    ledController.setBlinkPeriod(1.0f);
+
+    while (1) {
+        if (uint32_t num = serial_port.read(buf, sizeof(buf))) {
+            if (buf[0] >= '0' && buf[0] <= '9') {
+                float period = buf[0] - '0';
+                if (period > 0) {
+                    ledController.setBlinkPeriod(period);
+                } else {
+                    ledController.setBlinkPeriod(0.1f);
+                }
+            }
+            serial_port.write(buf, num);
+        }
+        ThisThread::sleep_for(100ms);
+    }
+}