hello all,
I was hoping someone could help me with a bit of trouble with a project I've been working on. I am attempting to use a 16x2LCD with a 595 shift register and an analog four pad button (each button has a resistor so each button push give a different reading). I worked through the logic to get the buttons to adjust the two values I wish to control in the manner I liked, however now that I am trying to add the LCD commands I am seeing the code stop working. The LCD commands that I have inserted seem to work but the code with the if and while statements for the buttons seem to no longer perform as they did before inserting the code. Any help would be greatly appreciated.
thank you
/*
AnalogButton_Combos
Version 0.1
Connection more then one button to a single analog pin. Utilizing
software debounce to prevent registering multiple button press
while allow for 2 button combos to be registered.
The Circuit:
Most other analog buttons circuits call for the resistors to be
lined up in series from ground. The analog pin and each button
connect off one of the resistors. My cuicuit requires that the
resistors tie in from +5 to the buttons. The buttons all connect
to the analog pin which is tied to ground threw a 1k resistor as
seen in the diagram below.
Analog pin 5
|
Ground--1K--|--------|--------|-------|-------|
| | | | |
btn1 btn2 btn3 btn4 btn5
| | | | |
220 Ohm 390 Ohm 680 Ohm 2.2K 4.7K
|--------|--------|-------|-------|-- +5V
Created By: Michael Pilcher
February 24, 2010
*/
#include <LiquidCrystal595.h>
LiquidCrystal595 lcd(2, 3, 4);
int j = 1; // integer used in scanning the array designating column number
//2-dimensional array for asigning the buttons and there high and low values
int Button[4][3] = {
{1, 150, 180}, // button 1
{2, 500, 530}, // button 2
{3, 680, 710}, // button 3
{4, 220, 240}
}; // button 4
/* {5, 178, 179}, // button 5
{6, 91, 92}, // button 6
{7, 896, 897}, // button 1 + button 2
{8, 877, 878}, // button 1 + button 3
{9, 851, 852}, // button 1 + button 4
{10, 844, 845}, // button 1 + button 5
{11, 840, 841}, // button 1 + button 6
{12, 821, 822}, // button 2 + button 3
{13, 769, 770}, // button 2 + button 4
{14, 753, 754}, // button 2 + button 5
{15, 745, 746}, // button 2 + button 6
{16, 674, 675}, // button 3 + button 4
{17, 643, 644}, // button 3 + button 5
{18, 627, 627}, // button 3 + button 6
{19, 408, 409}, // button 4 + button 5
{20, 363, 364}, // button 4 + button 6
{21, 243, 243}}; // button 5 + button 6
*/
int analogpin = 0; // analog pin to read the buttons
int label = 0; // for reporting the button label
int counter = 0; // how many times we have seen new value
long time = 0; // the last time the output pin was sampled
int debounce_count = 50; // number of millis/samples to consider before declaring a debounced input
int current_state = 0; // the debounced input value
int ButtonVal;
int mode = 0;
boolean loopmode = false;
int leftval = 0;
int rightval = 0;
void setup()
{
Serial.begin(9600);
lcd.begin(16, 2);
lcd.blink();
}
void loop()
{
buttonTest();
if (mode != 0) {
lcd.setCursor(0, 0);// these lines cause problems
lcd.print("leftval ");//problem
lcd.setCursor(0, 1);//problem
lcd.print("riteval ");// problem
if (mode == 2) {
while (loopmode == true || mode == 2) {
loopmode = true;
Serial.println("leftmode");
mode = 0;
/*
lcd.setCursor(0, 0);
lcd.print("leftval ");
lcd.print(leftval);
lcd.setCursor(0, 1);
lcd.print("riteval ");
lcd.print(rightval);
*/
buttonTest();
if (mode == 1) {
break;
}
if (mode == 2) {
loopmode = false;
mode = 0;
lcd.clear();
break;
}
if (mode == 3) {
leftval --;
Serial.print(leftval);
mode = 0;
}
if (mode == 4) {
leftval ++;
Serial.print(leftval);
mode = 0;
}
}
}
if (mode == 1) {
while (loopmode == true || mode == 1) {
loopmode = true;
Serial.println("rightmode");
mode = 0;
/*
lcd.setCursor(0, 0);// the code causes problems here too
lcd.print("leftval ");
lcd.print(leftval);
lcd.setCursor(0, 1);
lcd.print("riteval ");
lcd.print(rightval);
*/
buttonTest();
if (mode == 2) {
break;
}
if (mode == 1) {
loopmode = false;
mode = 0;
lcd.clear();
break;
}
if (mode == 3) {
rightval --;
Serial.print("rightval");
Serial.print(rightval);
mode = 0;
}
if (mode == 4) {
rightval ++;
Serial.print("rightval");
Serial.print(rightval);
mode = 0;
}
}
}
if (mode > 2) {
mode = 0;
lcd.clear();
}
}
Serial.println(mode);
}
void buttonTest(){
// If we have gone on to the next millisecond
if (millis() != time)
{
// check analog pin for the button value and save it to ButtonVal
ButtonVal = analogRead(analogpin);
if(ButtonVal == current_state && counter >0)
{
counter--;
}
if(ButtonVal != current_state)
{
counter++;
}
// If ButtonVal has shown the same value for long enough let's switch it
if (counter >= debounce_count)
{
counter = 0;
current_state = ButtonVal;
//Checks which button or button combo has been pressed
if (ButtonVal > 0)
{
ButtonCheck();
}
}
time = millis();
}
}
void ButtonCheck()
{
// loop for scanning the button array.
for(int i = 0; i <= 4; i++)
{
// checks the ButtonVal against the high and low vales in the array
if(ButtonVal >= Button[i][j] && ButtonVal <= Button[i][j+1])
{
// stores the button number to a variable
label = Button[i][0];
Action();
}
}
}
void Action()
{
if(label == 1)
{
mode = label;
// Serial.println("right Button");
}
if(label == 2)
{
mode = label;
// Serial.println("left Button");
}
if(label == 3)
{
mode = label;
// Serial.println("down Button");
}
if(label == 4)
{
mode = label;
// Serial.println("up Button");
}
/*
if(label == 5)
{
Serial.println("Action Button #1");
}
if(label == 6)
{
Serial.println("Action Button #2");
}
if(label == 8)
{
Serial.println("Left and Up Buttons");
}
if(label == 9)
{
Serial.println("Right and Up Buttons");
}
if(label == 12)
{
Serial.println("Left and Down Buttons");
}
if(label == 13)
{
Serial.println("Right and Down Buttons");
}
if(label == 21)
{
Serial.println("Action Buttons #1 and #2");
}
*/
//Serial.println("Button =:");
//Serial.println(label);
//delay(200);
}