client: Calculate 'ago' with a clock

[tattlekey] / client / config.h

diff --git a/client/config.h b/client/config.h
index 7b89ba2cb583a3fc014cf93df211e2db7ec28793..66e33a448ad4306db13937d81361628ac169bdc9 100644 (file)
--- a/client/config.h
+++ b/client/config.h
@@ -3,12 +3,30 @@
 
 #include "lwip/arch.h"
 
+/* Wi-Fi credentials */
 extern char wifi_ssid[];
 extern char wifi_pass[];
 
-extern u16_t tattle_port;
+/* Network address of the server to contact */
 extern char tattle_server_ip_address[];
+extern u16_t tattle_port;
 
+/* For distinguishing reports from multiple tattlekey devices. */
 extern u16_t this_tattler_identity;
 
+/* Which GPIO pin is the button connected to?
+ * The button should span this pin and ground, connecting this pin to ground
+ * when pressed.
+ * https://projects.raspberrypi.org/en/projects/introduction-to-the-pico/10
+ * recommends pins 18, 22, or 28. */
+extern uint button_pin;
+
+/* Don't bother reporting each separate button press when it is pressed many
+ * times in short succession.  (We also use this to de-bounce. :) */
+extern u32_t minimum_seconds_between_button_presses;
+
+/* Send each report multiple times. */
+extern uint resend_count;
+extern u32_t resend_interval_ms;
+
 #endif