Motor Speed Control With Processing
Screenshot
Arduino Code:
#include
const char WiFiAPPSK[] = "";
WiFiServer server(80);
#define blueLed 16
#define redLed 2
#define greenLed 0
int red = 0, green = 0, blue = 0;
int pinPWM[4] = {14, 15, 12, 13}; //Define PWM pin
int throttle = 0;
String strial;
String inString = "";
int currentColor = 0;
void setup() {
Serial.begin(9600);
analogWriteFreq(20000);
pinMode(redLed, OUTPUT);
pinMode(greenLed, OUTPUT);
pinMode(blueLed, OUTPUT);
pinMode(pinPWM[0], OUTPUT);
pinMode(pinPWM[1], OUTPUT);
pinMode(pinPWM[2], OUTPUT);
pinMode(pinPWM[3], OUTPUT);
setupWiFi();
}
void loop() {
WiFiClient client = server.available();
Serial.println("waiting... ");
Serial.println(client);
if (client ) {
while (client.connected()) {
while(1){
if (client.available()) {
int inChar;
inChar = client.read();
if (isDigit(inChar)) {
// convert the incoming byte to a char
// and add it to the string:
inString += (char)inChar;
}
if (inChar == '*') {
// do something different for each value of currentColor:
switch (currentColor) {
case 0: // 0 = red
red = inString.toInt();
// clear the string for new input:
inString = "";
break;
case 1: // 1 = green:
green = inString.toInt();
// clear the string for new input:
inString = "";
break;
}
currentColor++;
}
// if you get a newline, you know you've got
// the last color, i.e. blue:
if (inChar == '?') {
throttle = inString.toInt();
// clear the string for new input:
inString = "";
// reset the color counter:
currentColor = 0;
}
}
analogWrite(pinPWM[0], throttle);
analogWrite(pinPWM[1], throttle);
analogWrite(pinPWM[2], throttle);
analogWrite(pinPWM[3], throttle);
}
// Serial.println("Client disconnected.");
// client.stop();
}
}
}
void setupWiFi(){
WiFi.mode(WIFI_AP);
// Do a little work to get a unique-ish name. Append the
// last two bytes of the MAC (HEX'd) to "Thing-":
uint8_t mac[WL_MAC_ADDR_LENGTH];
WiFi.softAPmacAddress(mac);
String macID = String(mac[WL_MAC_ADDR_LENGTH - 2], HEX) +
String(mac[WL_MAC_ADDR_LENGTH - 1], HEX);
macID.toUpperCase();
String AP_NameString = "ESPCopter";
char AP_NameChar[AP_NameString.length() + 1];
memset(AP_NameChar, 0, AP_NameString.length() + 1);
for (int i=0; i<AP_NameString.length(); i++)
AP_NameChar[i] = AP_NameString.charAt(i);
WiFi.softAP(AP_NameChar, WiFiAPPSK);
server.begin();
}
Processing Code:
import processing.net.*;
import controlP5.*;
Client myClient;
ControlP5 cp5;
Knob myKnobA;
String command= "";
void setup() {
size(500, 500,P3D);
background(0);
myClient = new Client(this, "192.168.4.1", 80);
println(myClient.ip());
cp5 = new ControlP5(this);
myKnobA = cp5.addKnob("knobValue")
.setRange(0,100)
.setValue(0)
.setPosition(200,200)
.setRadius(50)
.setNumberOfTickMarks(50)
.setTickMarkLength(4)
.snapToTickMarks(true)
.setColorForeground(color(255))
.setColorBackground(color(0, 160, 100))
.setColorActive(color(255,255,0))
.setDragDirection(Knob.HORIZONTAL)
;
}
void draw() {
}
void knobValue(int theValue) {
println("a knob event. "+theValue);
command = 0+ "*" + 0+ "*" + theValue + "?" ;
myClient.write(command);
}
RGB LED Control with Processing
Screenshot
Arduino Code
#include
const char WiFiAPPSK[] = "";
WiFiServer server(80);
#define blueLed 16
#define redLed 2
#define greenLed 0
int red = 0, green = 0, blue = 0;
String strial;
String inString = "";
int currentColor = 0;
void setup() {
Serial.begin(9600);
pinMode(redLed, OUTPUT);
pinMode(greenLed, OUTPUT);
pinMode(blueLed, OUTPUT);
setupWiFi();
}
void loop() {
WiFiClient client = server.available();
Serial.println("waiting... ");
Serial.println(client);
if (client ) {
while (client.connected()) {
while(1){
if (client.available()) {
int inChar;
inChar = client.read();
if (isDigit(inChar)) {
// convert the incoming byte to a char
// and add it to the string:
inString += (char)inChar;
}
if (inChar == '*') {
// do something different for each value of currentColor:
switch (currentColor) {
case 0: // 0 = red
red = 4*inString.toInt();
// clear the string for new input:
inString = "";
break;
case 1: // 1 = green:
green = 4*inString.toInt();
// clear the string for new input:
inString = "";
break;
}
currentColor++;
}
// if you get a newline, you know you've got
// the last color, i.e. blue:
if (inChar == '?') {
blue = 4*inString.toInt();
// clear the string for new input:
inString = "";
// reset the color counter:
currentColor = 0;
}
}
analogWrite(blueLed,PWMRANGE-blue);
analogWrite(redLed, PWMRANGE-red);
analogWrite(greenLed, green);
}
// Serial.println("Client disconnected.");
// client.stop();
}
}
}
void setupWiFi(){
WiFi.mode(WIFI_AP);
// Do a little work to get a unique-ish name. Append the
// last two bytes of the MAC (HEX'd) to "Thing-":
uint8_t mac[WL_MAC_ADDR_LENGTH];
WiFi.softAPmacAddress(mac);
String macID = String(mac[WL_MAC_ADDR_LENGTH - 2], HEX) +
String(mac[WL_MAC_ADDR_LENGTH - 1], HEX);
macID.toUpperCase();
String AP_NameString = "ESPCopter";
char AP_NameChar[AP_NameString.length() + 1];
memset(AP_NameChar, 0, AP_NameString.length() + 1);
for (int i=0; i<AP_NameString.length(); i++)
AP_NameChar[i] = AP_NameString.charAt(i);
WiFi.softAP(AP_NameChar, WiFiAPPSK);
server.begin();
}
Processing Code
import processing.net.*;
import controlP5.*;
Client myClient;
ControlP5 cp5;
String command= "";
void setup() {
size(500, 500,P3D);
background(0);
myClient = new Client(this, "192.168.4.1", 80);
println(myClient.ip());
cp5 = new ControlP5(this);
cp5.addColorWheel("colorWheel", 125 , 125 , 225 ).setRGB(color(128,0,255));
noStroke();
}
void draw() {
command = cp5.get(ColorWheel.class,"colorWheel").b() + "*" + cp5.get(ColorWheel.class,"colorWheel").g() + "*" +cp5.get(ColorWheel.class,"colorWheel").r() + "?" ;
}
void colorWheel(int theValue) {
println("from client: " + command);
myClient.write(command);
}
Button Control with Processing
Screenshot
Arduino Code:
#include
const char WiFiAPPSK[] = "";
WiFiServer server(80);
#define blueLed 16
#define redLed 2
#define greenLed 0
void setup() {
Serial.begin(9600);
pinMode(redLed, OUTPUT);
pinMode(greenLed, OUTPUT);
pinMode(blueLed, OUTPUT);
setupWiFi();
}
void loop() {
WiFiClient client = server.available();
Serial.println("waiting... ");
Serial.println(client);
if (client ) {
while (client.connected()) {
while(1){
if (client.available()) {
int inChar;
inChar = client.read();
Serial.println(inChar);
switch (inChar) {
case 'A':
analogWrite(blueLed,0);
break;
case 'a':
analogWrite(blueLed,PWMRANGE);
break;
case 'B':
analogWrite(redLed, PWMRANGE);
break;
case 'b':
analogWrite(redLed, 0);
break;
case 'C':
analogWrite(greenLed, PWMRANGE);
break;
case 'c':
analogWrite(greenLed, 0);
break;
}
}
}
// Serial.println("Client disconnected.");
// client.stop();
}
}
}
void setupWiFi(){
WiFi.mode(WIFI_AP);
// Do a little work to get a unique-ish name. Append the
// last two bytes of the MAC (HEX'd) to "Thing-":
uint8_t mac[WL_MAC_ADDR_LENGTH];
WiFi.softAPmacAddress(mac);
String macID = String(mac[WL_MAC_ADDR_LENGTH - 2], HEX) +
String(mac[WL_MAC_ADDR_LENGTH - 1], HEX);
macID.toUpperCase();
String AP_NameString = "ESPCopter";
char AP_NameChar[AP_NameString.length() + 1];
memset(AP_NameChar, 0, AP_NameString.length() + 1);
for (int i=0; i<AP_NameString.length(); i++)
AP_NameChar[i] = AP_NameString.charAt(i);
WiFi.softAP(AP_NameChar, WiFiAPPSK);
server.begin();
}
Processing Code:
import processing.net.*;
import controlP5.*;
Client myClient;
ControlP5 cp5;
String command= "";
int c1,c2;
void setup() {
size(400, 300,P3D);
background(0);
myClient = new Client(this, "192.168.4.1", 80);
println(myClient.ip());
cp5 = new ControlP5(this);
cp5.addToggle("colorA")
.setPosition(150,100)
.setSize(50,20)
.setValue(false)
.setMode(ControlP5.SWITCH)
;
cp5.addToggle("colorB")
.setPosition(150,150)
.setSize(50,20)
.setValue(false)
.setMode(ControlP5.SWITCH)
;
cp5.addToggle("colorC")
.setPosition(150,200)
.setSize(50,20)
.setValue(false)
.setMode(ControlP5.SWITCH)
;
}
void draw() {
}
// function colorA will receive changes from
// controller with name colorA
void colorA(boolean theFlag) {
println("a button event from colorA: "+theFlag);
background(0,255,0);
if(theFlag == true){
command = "A";
} else {
command = "a";
}
myClient.write(command);
}
// function colorB will receive changes from
// controller with name colorB
void colorB(boolean theFlag) {
println("a button event from colorB: "+theFlag);
background(0,0,255);
if(theFlag == true){
command = "B";
} else {
command = "b";
}
myClient.write(command);
}
// function colorC will receive changes from
// controller with name colorC
void colorC(boolean theFlag) {
println("a button event from colorC: "+theFlag);
background(255,0,0);
if(theFlag == true){
command = "C";
} else {
command = "c";
}
myClient.write(command);
}