From 07ea618e50f0f67f3e99744995d06ede9a653b33 Mon Sep 17 00:00:00 2001
From: alanbjohnston <alan.b.johnston@gmail.com>
Date: Sat, 18 Jan 2020 15:28:23 -0500
Subject: [PATCH] added pullup test

---
 afsk/main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/afsk/main.c b/afsk/main.c
index e8bffa1b..2817b26e 100644
--- a/afsk/main.c
+++ b/afsk/main.c
@@ -268,6 +268,7 @@ int main(int argc, char *argv[]) {
   pinMode (0, OUTPUT);
   pinMode (2, OUTPUT);
   pinMode (3, INPUT);
+  pullUpDnControl (3, PUD_UP);
 
   printf("Reading: %d\n", digitalRead(3));