X-Git-Url: http://git.scottworley.com/tattlekey/blobdiff_plain/1d699cc3048d7e1dfed4f13e455cd2ede3d52101..9efef936f83e7a0f30e95cbc95d4a5a165d9c32e:/client/config.c

diff --git a/client/config.c b/client/config.c
index d2be496..a8e5844 100644
--- a/client/config.c
+++ b/client/config.c
@@ -10,3 +10,10 @@ u16_t tattle_port = 29803; // 'tk'
 
 /* For distinguishing reports from multiple tattlekey devices. */
 u16_t this_tattler_identity = 1;
+
+/* 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. */
+uint button_pin = 18;