From 6cd774b00a2d71488f89d4ac3508da1e32a5b42c Mon Sep 17 00:00:00 2001
From: Stephan Richter <s.richter@srsoftware.de>
Date: Sun, 19 Nov 2023 23:25:49 +0100
Subject: [PATCH] added LCDReceive example

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>
---
 examples/LCDReceive/LCDReceive.ino | 81 ++++++++++++++++++++++++++++++
 examples/TempSend/TempSend.ino     |  4 +-
 2 files changed, 83 insertions(+), 2 deletions(-)
 create mode 100644 examples/LCDReceive/LCDReceive.ino

diff --git a/examples/LCDReceive/LCDReceive.ino b/examples/LCDReceive/LCDReceive.ino
new file mode 100644
index 0000000..abae1d1
--- /dev/null
+++ b/examples/LCDReceive/LCDReceive.ino
@@ -0,0 +1,81 @@
+/*
+  LiquidCrystal Library - Hello World
+
+ Demonstrates the use a 16x2 LCD display.  The LiquidCrystal
+ library works with all LCD displays that are compatible with the
+ Hitachi HD44780 driver. There are many of them out there, and you
+ can usually tell them by the 16-pin interface.
+
+ This sketch prints "Hello World!" to the LCD
+ and shows the time.
+
+  The circuit:
+ * LCD RS pin to digital pin 12
+ * LCD Enable pin to digital pin 11
+ * LCD D4 pin to digital pin 5
+ * LCD D5 pin to digital pin 4
+ * LCD D6 pin to digital pin 3
+ * LCD D7 pin to digital pin 2
+ * LCD R/W pin to ground
+ * LCD VSS pin to ground
+ * LCD VCC pin to 5V
+ * 10K resistor:
+ * ends to +5V and ground
+ * wiper to LCD VO pin (pin 3)
+
+ Library originally added 18 Apr 2008
+ by David A. Mellis
+ library modified 5 Jul 2009
+ by Limor Fried (http://www.ladyada.net)
+ example added 9 Jul 2009
+ by Tom Igoe
+ modified 22 Nov 2010
+ by Tom Igoe
+ modified 7 Nov 2016
+ by Arturo Guadalupi
+
+ This example code is in the public domain.
+
+ http://www.arduino.cc/en/Tutorial/LiquidCrystalHelloWorld
+
+*/
+
+// include the library code:
+#include <LiquidCrystal.h>
+#include <SoftRS485.h>
+
+// initialize the library by associating any needed LCD interface pin
+// with the arduino pin number it is connected to
+const int rs = 12, en = 11, d4 = 4, d5 = 5, d6 = 6, d7 = 7;
+LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
+
+void setup() {
+  Serial.begin(115200);  
+  // set up the LCD's number of columns and rows:
+  lcd.begin(16, 2);
+  // Print a message to the LCD.
+  lcd.print("hello, world!");
+  init485(2,3,8,9); // library initialization:
+  // connect pin 2 to RO of Max485
+  // connect pin 3 to ^RE of Max485
+  // connect pin 8 to DE of Max485
+  // connect pin 9 to DI of Max485
+}
+
+void loop() {
+  
+  if (available485()) {
+  // set the cursor to column 0, line 1
+  // (note: line 1 is the second row, since counting begins with 0):
+    String s = get485message();
+    lcd.clear();
+    lcd.setCursor(0, 0);
+    lcd.print(s);
+    if (s.length()>16) {
+      lcd.setCursor(0, 1);
+      s=s.substring(16);
+      s.trim();
+      lcd.print(s);
+    }
+  }
+}
diff --git a/examples/TempSend/TempSend.ino b/examples/TempSend/TempSend.ino
index 87487ba..7226460 100644
--- a/examples/TempSend/TempSend.ino
+++ b/examples/TempSend/TempSend.ino
@@ -19,6 +19,7 @@ void setup() {
 }
 
 void loop() {
+  delay(2000);
   // read without samples.
   byte temperature = 0;
   byte humidity = 0;
@@ -29,7 +30,6 @@ void loop() {
     return;
   }
   count++;
-  String s = String(count)+" - Sample OK: "+ String(temperature)+" *C, "+String(humidity)+"% rel";
+  String s = "Sample "+String(count)+" ok:    "+ String(temperature)+" *C, "+String(humidity)+"% rel";
   send485(s.c_str());
-  delay(5000);
 }