Latest sketch and notes:<\/p>\n
all hardware has been secured on the breadboard with my testbed arduino uno. so far concerns are back chatter — the power lines are not clean and I have isolated the main components of speaker and bluetooth transmitter\/receiver on the board with some limiting resistors. my display values are unstable at startup after physical manipulation but can be returned to null after re-adjusting the connections. In particular, the pairing of the BT is reflected by an immediate 5 to 6 impedance drop on the soft pot lines, so for now, all testing begins only after pairing is complete.<\/p>\n
the uno revision 3 should eliminate these issues as all power and ground lines are isolated on the board.<\/p>\n
mac address for BT has been hard coded for tablet app and I have completed the bluetooth library integration in my app.<\/p>\n
audio: currently utilizing TONE.h library for arduino to allow for software modulation of two tones simultaneously but this is not the final plan<\/p>\n
all physical components are working without interference [other than power mentioned above]. testing has shown consistent performance over several hours.<\/p>\n
Next Phase: will need to integrate BTLE beacon hardware and software<\/p>\n
<\/p>\n
\/\/when sending from serial be sure both NL and CR are on and baud rate matches
\n\/\/ ended up needing to use RX pin 0 and TX pin 1
\n\/\/ SR will be .25 seconds<\/p>\n
\/\/ HARDWARE
\n#include <Timer.h>
\n#include <Event.h>
\n#include “Arduino.h”
\n#include <SoftwareSerial.h>
\n#include “DFRobotDFPlayerMini.h”<\/p>\n
SoftwareSerial mySoftwareSerial(10, 11); \/\/ RX, TX
\nDFRobotDFPlayerMini myDFPlayer;<\/p>\n
\/\/ VARIABLES
\nconst int sr = 250; \/\/worked for a very long time \/\/ sample rate in ms??
\nconst int le = 14; \/\/20; \/\/2; \/\/40; \/\/ Low end of travel
\nconst int he = 80; \/\/50; was great \/\/100; \/\/ High end of travel
\nconst int baseSV = 20; \/\/should be 10 but 20 when things are putting it above 0 on no touch
\nint dir = 1; \/\/ 1 is clockwise -1 is counterclockwise<\/p>\n
const int SENSOR_PIN = 0; \/\/0 was working great \/\/ Pin for ribbon
\nconst int SENSOR_PIN2 = 1; \/\/1 was working with 0 great \/\/pin for ribbon2
\nconst int LED_PIN = 13; \/\/12; \/\/ LED pin location<\/p>\n
bool flowing = false;
\nbool prevFlow = false;
\nint prevRead = 0;<\/p>\n
bool isPlay=false;
\nint myVol=24;
\nint curVol=0;<\/p>\n
Timer t;<\/p>\n
\/\/ SETUP
\nvoid setup()
\n{
\nmySoftwareSerial.begin(9600);
\nSerial.begin(9600);
\n\/\/Serial.println(“setup”);
\npinMode( LED_PIN, OUTPUT );
\nint senseEvent = t.every(sr, sensorCheck);<\/p>\n
myDFPlayer.begin(mySoftwareSerial);
\nmyDFPlayer.volume(myVol); \/\/Set volume value. From 0 to 30
\nmyDFPlayer.enableLoopAll();
\nmyDFPlayer.play(4);
\nmyDFPlayer.pause();
\n}<\/p>\n
\/\/ LOOP
\nvoid loop() {
\nt.update();
\n\/*
\nif(isPlay){
\nmyDFPlayer.volume(myVol++);
\n}
\nelse {
\nmyDFPlayer.volume(myVol–);
\n}<\/p>\n
if (isPlay){
\n\/\/if(myDFPlayer.readVolume()<15){
\nmyDFPlayer.volumeUp();
\n\/\/}
\n}
\nelse {
\nif(myDFPlayer.readVolume()>0){
\nmyDFPlayer.volumeDown();
\n}
\n}
\n*\/<\/p>\n
if(Serial.available()){ \/\/LAST change was getting rid of just serial avail, but everything inside was commented
\n\/\/this works to get data back from Android
\n\/\/Serial.println(Serial.read());
\n\/\/char valA=Serial.read();
\n\/\/if (valA==’a’)
\n\/\/Serial.println(“IT WAS AN A”);
\n}<\/p>\n
}<\/p>\n
\/\/ SENSORCHECK
\nvoid sensorCheck () {
\nint sensorVal = analogRead( SENSOR_PIN );
\nint sensorVal2 = analogRead( SENSOR_PIN2);
\n\/\/TENU TEST AREA<\/p>\n
Serial.print(“VAL ONE “);
\nSerial.println(sensorVal);<\/p>\n
Serial.print(“VAL tWO “);
\nSerial.println(sensorVal2);<\/p>\n
int sensDelta=0;
\nif((sensorVal>baseSV)&&(sensorVal2<baseSV)) \/\/only hitting s1
\n{
\nsensDelta = sensorVal – prevRead;
\nprevRead = sensorVal;
\n}
\nif ((sensorVal2>baseSV)&&(sensorVal<baseSV)) \/\/only hitting s2
\n{
\nsensDelta = sensorVal2 – prevRead;
\nprevRead = sensorVal2;
\n}<\/p>\n
if ((sensorVal>baseSV) && (sensorVal2>baseSV)) { \/\/touching both
\nprevRead=0;
\n}<\/p>\n
\/\/—————————————————–
\nsensDelta=abs(sensDelta);<\/p>\n
if ( ( sensDelta > le ) && ( sensDelta < he ) ) {
\nflowing = true;<\/p>\n
if ( (prevFlow==true) )
\n{
\nSerial.println(“T”);
\ndigitalWrite(LED_PIN, HIGH);
\ntonePlay();
\n} else {
\nSerial.println(“F”);
\ndigitalWrite(LED_PIN, LOW);
\nisPlay=false;
\ncallPause();
\n} \/\/end Bblock<\/p>\n
prevFlow = flowing;
\nflowing = false;
\n}
\nelse { \/\/sensDelta was not in range
\ndigitalWrite( LED_PIN, LOW );
\nif (prevFlow == true) { \/\/has moved from flow to no flow
\nprevFlow = false;
\nSerial.println(“F”);
\nisPlay=false;
\ncallPause();
\n}\/\/end if prevFlow
\n}
\n}<\/p>\n
\/\/ TONEPLAY
\nvoid tonePlay() {<\/p>\n
if(!isPlay) {
\nisPlay=true;
\nmyDFPlayer.volume(myVol);
\ncurVol=myVol;
\nmyDFPlayer.start();
\n}<\/p>\n
}
\n\/\/ CALLPAUSE
\nvoid callPause() {
\nfor(int i=curVol; i–; i>-1)
\n{
\nmyDFPlayer.volume(–curVol);
\n\/\/myDFPlayer.volumeDown();
\n\/\/curVol–;
\ndelay(10);
\n}<\/p>\n
myDFPlayer.pause();
\n}<\/p>\n","protected":false},"excerpt":{"rendered":"
Latest sketch and notes: all hardware has been secured on the breadboard with […]<\/p>\n","protected":false},"author":1,"featured_media":262,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,5,1],"tags":[],"class_list":["post-209","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pieces","category-research","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/ulm.taddug.com\/index.php\/wp-json\/wp\/v2\/posts\/209","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ulm.taddug.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ulm.taddug.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ulm.taddug.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ulm.taddug.com\/index.php\/wp-json\/wp\/v2\/comments?post=209"}],"version-history":[{"count":1,"href":"https:\/\/ulm.taddug.com\/index.php\/wp-json\/wp\/v2\/posts\/209\/revisions"}],"predecessor-version":[{"id":210,"href":"https:\/\/ulm.taddug.com\/index.php\/wp-json\/wp\/v2\/posts\/209\/revisions\/210"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ulm.taddug.com\/index.php\/wp-json\/wp\/v2\/media\/262"}],"wp:attachment":[{"href":"https:\/\/ulm.taddug.com\/index.php\/wp-json\/wp\/v2\/media?parent=209"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ulm.taddug.com\/index.php\/wp-json\/wp\/v2\/categories?post=209"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ulm.taddug.com\/index.php\/wp-json\/wp\/v2\/tags?post=209"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}