From 3b81e8348d1e7b1274d94f717d41acd073e6d096 Mon Sep 17 00:00:00 2001
From: Jeff Epler <jepler@unpythonic.net>
Date: Sat, 9 Mar 2019 13:57:03 -0600
Subject: [PATCH] Only handle most characters in cmdstate 0

Otherwise, "T1s" didn't set time (period) of 1 second, because the "s"
was interpreted to mean "save".
---
 RFout1MHzV1_06/RFout1MHzV1_06.ino | 43 +++++++++++++++----------------
 1 file changed, 21 insertions(+), 22 deletions(-)

diff --git a/RFout1MHzV1_06/RFout1MHzV1_06.ino b/RFout1MHzV1_06/RFout1MHzV1_06.ino
index 06cffbe..791d71c 100644
--- a/RFout1MHzV1_06/RFout1MHzV1_06.ino
+++ b/RFout1MHzV1_06/RFout1MHzV1_06.ino
@@ -122,26 +122,27 @@ void setup()
 // Handle serial commands
 void handle_serial() {
   int c = Serial.read();
-  if(c == 'P' || c=='p') {
-    Serial.println(F("Entering passthrough mode -- reset microcontroller to return to normal mode\n"));
-    passthrough = true;
-  }
-   else if(c == 'S' || c == 's') {
-    SaveToEPROM ();
-    Serial.println(F("Time pulse setting was saved"));
-  }
-  else if(c == 'H' || c == 'h') {
-    HelpText ();  
-  }
-  else if(c == 'F' || c == 'f') {
-    Serial.print(F("Frequency?"));
-    cmdstate = 1; freq = period = 0;
-  }
-  else if(c == 'T' || c == 't') {
-    Serial.print(F("Period?"));
-    cmdstate = 2; freq = period = 0;
-  }
-  else if(cmdstate == 1) {
+  if(cmdstate == 0) {
+    if(c == 'P' || c=='p') {
+      Serial.println(F("Entering passthrough mode -- reset microcontroller to return to normal mode\n"));
+      passthrough = true;
+    }
+     else if(c == 'S' || c == 's') {
+      SaveToEPROM ();
+      Serial.println(F("Time pulse setting was saved"));
+    }
+    else if(c == 'H' || c == 'h') {
+      HelpText ();
+    }
+    else if(c == 'F' || c == 'f') {
+      Serial.print(F("Frequency?"));
+      cmdstate = 1; freq = period = 0;
+    }
+    else if(c == 'T' || c == 't') {
+      Serial.print(F("Period?"));
+      cmdstate = 2; freq = period = 0;
+    }
+  } else if(cmdstate == 1) {
     if(c >= '0' && c <= '9') {
       Serial.write(c);
       freq = freq * 10 + c - '0';
@@ -177,8 +178,6 @@ void handle_serial() {
     } else if (c == 'M' || c == 'm') {
       Serial.write(c);
       period *= 1000lu;
-    } else if (c == 'U' || c == 'u') {
-      period *= 1000lu;
     } else if (c == '\n' || c == '\r') {
       Serial.println(F(""));
       if (setGPS_OutputPeriod(period)) {