client: Less chatty with the LED

[tattlekey] / client / tattlekey.c

diff --git a/client/tattlekey.c b/client/tattlekey.c
index 45059f6ed2e832b8457c64f4696640d0a6c44e1a..3a1f7b7b67212de7437b593f1b4f8c1512ad305a 100644 (file)
--- a/client/tattlekey.c
+++ b/client/tattlekey.c
@@ -11,23 +11,28 @@ queue_t queue;
 
 static void button_pressed() {
   /* This runs in interrupt context; don't linger.  */
-  char zero = '\0';
-  /* We don't check for failure (full queue) here because there's not much to be
-   * done about it. */
-  queue_try_add(&queue, &zero);
+  static uint64_t last_button_press_time = 0;
+  uint64_t now = time_us_64();
+  uint64_t time_since_last_press = now - last_button_press_time;
+  if (time_since_last_press > minimum_microseconds_between_button_presses) {
+    last_button_press_time = now;
+    char zero = '\0';
+    /* We don't check for failure (full queue) here because there's not much to
+     * be done about it. */
+    queue_try_add(&queue, &zero);
+  }
 }
 
 int main() {
   stdio_init_all();
   if (cyw43_arch_init_with_country(CYW43_COUNTRY_USA))
     signal_error_by_blinking();
-  signal(1, 200);
   cyw43_arch_enable_sta_mode();
-  signal(2, 200);
+  signal(3, 100);
   if (cyw43_arch_wifi_connect_timeout_ms(wifi_ssid, wifi_pass,
                                          CYW43_AUTH_WPA2_AES_PSK, 90000))
     signal_error_by_blinking();
-  signal(3, 200);
+  signal(2, 300);
 
   queue_init(&queue, 1, 99);
 
@@ -38,6 +43,6 @@ int main() {
     char _;
     queue_remove_blocking(&queue, &_);
     send_report(seq++, 0);
-    signal(4, 200);
+    signal(2, 100);
   }
 }