StephanRichter/SoftRS485
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Signed-off-by: Stephan Richter <s.richter@srsoftware.de>
This commit is contained in:
Stephan Richter
2023-11-20 00:35:03 +01:00
parent 6cd774b00a
commit 3bb87bad44
6 changed files with 107 additions and 104 deletions
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58
examples/LCDReceive/LCDReceive.ino
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@@ -1,51 +1,15 @@
/*
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
*/
/*
* Demonstrates how to use LCDisplay in conjunction with SoftRS485:
*
* The main _loop_ of this program listens on the RS485 bus.
* Whenever a message is received from the bus, it is displayed on the LCD.
*/
// 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
// 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);
@@ -54,7 +18,7 @@ void setup() {
// set up the LCD's number of columns and rows:
lcd.begin(16, 2);
// Print a message to the LCD.
lcd.print("hello, world!");
lcd.print("LCDReceive 1.0");
init485(2,3,8,9); // library initialization:
// connect pin 2 to RO of Max485
// connect pin 3 to ^RE of Max485
@@ -62,12 +26,10 @@ void setup() {
// connect pin 9 to DI of Max485
}
void loop() {
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();
Serial.println(s);
lcd.clear();
lcd.setCursor(0, 0);
lcd.print(s);