X-Git-Url: http://git.scottworley.com/tattlekey/blobdiff_plain/1e0a316ef9271ddd7e1422883a0a8db771b77a13..9efef936f83e7a0f30e95cbc95d4a5a165d9c32e:/client/config.h?ds=sidebyside

diff --git a/client/config.h b/client/config.h
index 7b89ba2..95c5651 100644
--- a/client/config.h
+++ b/client/config.h
@@ -3,12 +3,22 @@
 
 #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;
+
 #endif