added chapter 32, 33 and 34

0x0020_dynamic-conditionals/main.c

@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include "pico/stdlib.h"
+#include "pico/cyw43_arch.h"
+#include "input.h"
+
+#define FAV_NUM 42
+#define ONE 0x31
+#define TWO 0x32
+
+int main(void) 
+{
+    stdio_init_all();
+    uart0_init();
+
+    uint8_t choice = 0;
+
+    while (true) {
+        choice = on_uart_rx();
+        if (choice == ONE) {
+            printf("1\r\n");
+        } else if (choice == TWO) {
+            printf("2\r\n");
+        } else {
+            printf("??\r\n");
+        }
+        switch (choice) {
+            case '1':
+                printf("one\r\n");
+                break;
+            case '2':
+                printf("two\r\n");
+                break;   
+            default:
+                printf("??\r\n");  
+        }
+    }
+}