From e12f3e262f9c36b565741ff7102bfcc565d2d77e Mon Sep 17 00:00:00 2001
From: Chris Giacofei <c.giacofei@gmail.com>
Date: Thu, 20 Jan 2022 14:13:49 -0500
Subject: [PATCH] Get rid of sprintf.

---
 boil_kettle/boil_kettle.ino | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/boil_kettle/boil_kettle.ino b/boil_kettle/boil_kettle.ino
index ec2c11b..16d5cb7 100644
--- a/boil_kettle/boil_kettle.ino
+++ b/boil_kettle/boil_kettle.ino
@@ -50,21 +50,29 @@ unsigned long lastRun = 0;
 // On/Off state of the kettle.
 char* ShowKettleState() {
   if (KettleMode == MANUAL) {
-    return (char*)"Kettle:      Manual";
+    return (char*)F("Kettle:      Manual");
   } else if (KettleMode == AUTOMATIC) {
-    return (char*)"Kettle:        Auto";
+    return (char*)F("Kettle:        Auto");
   } else {
-    return (char*)"Kettle:         Off";
+    return (char*)F("Kettle:         Off");
   }
 }
 
 char* ShowKettleSetting() {
-  static char LCD_Line[20];
+  static char LCD_Line[21];
+  char setting[4];
   if (KettleMode == MANUAL) {
-    sprintf(LCD_Line, "Kettle Power:   %03d%", KettleDuty / 10);
+    strcpy(LCD_Line, (char*)F("Kettle Power:   "));
+    itoa(KettleDuty / 10, setting, 10);
+    strcat(LCD_Line, setting);
+    strcat(LCD_Line, "%");
+
     return LCD_Line;
   } else if (KettleMode == AUTOMATIC) {
-    sprintf(LCD_Line, "Kettle Temp:    %03dF", KettleSetpoint / 10);
+    strcpy(LCD_Line, (char*)F("Kettle Temp:    "));
+    itoa(KettleSetpoint / 10, setting, 10);
+    strcat(LCD_Line, setting);
+    strcat(LCD_Line, "F");
     return LCD_Line;
   } else {
     return (char*)"";