This code works, but send the midi command twice, once when I press, again when I release. Is this a bouncing issue or something else?
Thanks for your time!
// orange 2 way box midi controller sending CC and note midi data
// arduino nano old bootloader help from Paul Paulson!
// sept 23
#include <MIDI.h>
#include <midi_Defs.h>
#include <midi_Message.h>
#include <midi_Namespace.h>
#include <midi_Settings.h>
MIDI_CREATE_DEFAULT_INSTANCE();
// Constants
#define SWITCH1 2
#define SWITCH2 3
#define SWITCHES 2 // how many switches?
int switches[SWITCHES] = { SWITCH1, SWITCH2 };
int switchState[SWITCHES] = { LOW, LOW }; // Initial state of switch
int currentSwitch = 0;
const int led1 = 4; // led 1
const int led2 = 5; // led 2
int scene = 1;
unsigned long SwitchMillis = 0; // when button was released
unsigned long DebounceMillis = 40; //
unsigned long CurrentMillis = 0;
void setup() {
pinMode(led1, OUTPUT); // setup LED 1
pinMode(led2, OUTPUT); // setup LED 2
// MIDI.begin(1);
Serial.begin(9600);
MIDI.begin(1);
for (currentSwitch = 0; currentSwitch < SWITCHES; currentSwitch++) {
pinMode(switches[currentSwitch], INPUT); // Set pin for switch
digitalWrite(switches[currentSwitch], HIGH); // Turn on internal pullup
}
for (int i = 0; i < 4; i++) // show "welcome" message
{
digitalWrite(led1, HIGH);
delay(100);
digitalWrite(led1, LOW);
delay(100);
digitalWrite(led2, HIGH);
delay(100);
digitalWrite(led2, LOW);
delay(100);
}
} // end setup
void loop() {
CurrentMillis = millis(); // get the time at the start of this loop()
if (CurrentMillis - SwitchMillis >= DebounceMillis) //is it time to check the switches?
{
SwitchMillis = millis(); //re-initilize Timer
for (currentSwitch = 0; currentSwitch < SWITCHES; currentSwitch++) {
uint8_t stateNew = digitalRead(switches[currentSwitch]); // detect state change
if (switchState[currentSwitch] != stateNew) {
switchState[currentSwitch] = stateNew; // save new state
switch (currentSwitch) {
case 0:
if (scene == 1) {
MIDI.sendControlChange(69, 0, 1); // snapshot 1
digitalWrite(led1, LOW); // 1 off
digitalWrite(led2, LOW); // 2 off
}
if (scene == 2) {
MIDI.sendControlChange(69, 1, 1); // snapshot 2
digitalWrite(led1, LOW); // 1 off
digitalWrite(led2, HIGH); // 1 on
}
if (scene == 3) {
MIDI.sendControlChange(69, 2, 2); // snapshot 3
digitalWrite(led1, HIGH); // 2 on
digitalWrite(led2, LOW); // 1 off
scene = 0;
}
scene++;
break;
case 1:
MIDI.sendControlChange(61, 0, 1); // loop stop
break;
} // end case
} // end current switch
} // end if changed
} // go thru switches
} // end loop
// end life
