It’s my first time using an arduino with multiple ultrasonic sensors in TouchDesigner. I know how to get data from one ultrasonic sensor to make for example a SOP-Sphere move along with the data, using the serial and select operators.
I want to use 4 ultrasonic sensors connected to one arduino separetely in Touchdesigner. I have the arduino code completed and it works perfectly fine, but I want to create 4 different objects in TouchDesigner using the data from one of the 4 sensors. But I dont know what I have to do in the serial and select operators to only get the data from one of the sensors, for each object.
For example:
Object 1 (SOP-Sphere) = getting data from sensor 1
Object 2 (SOP-Rectangle) = getting data from sensor 2
Object 3 (SOP-Noise) = getting data from sensor 3
Object 4 (SOP-Sphere = getting data from sensor 4
It depend on how you receive information from sensor in Arduino
But I wrote an Arduino program able to send multiple digital and analog signal to TD:
void setup() {
//start serial connection
Serial.begin(9600);
//configure pins 2 as input and enable the internal pull-up resistor
for (int i = 2 ; i <= 13; i++){
pinMode(i, INPUT_PULLUP);
}
}
void loop() {
//read the pushbutton value into a variable
String sendVal = "v";
for (int i = 2 ; i <= 13; i++){
sendVal += digitalRead(i);
}
//print out the value of the pushbutton
Serial.println(sendVal);
//read analog into variable and print it
String A = "A";
A += analogRead(A0);
Serial.println(A);
String B = "B";
B += analogRead(A1);
Serial.println(B);
String C = "C";
C += analogRead(A2);
Serial.println(C);
String D = "D";
D += analogRead(A3);
Serial.println(D);
String E = "E";
E += analogRead(A4);
Serial.println(E);
String F = "F";
F += analogRead(A5);
Serial.println(F);
delay(10);
}
and the program on the serial callback
def onReceive(dat, rowIndex, message, bytes):
if message[0] == 'v':
op('table1').clear()
flow = list(message)
op('table1').appendCol(flow[1:])
elif message[0] == 'A':
value = message[1:]
op('table2')['A',1] = float(value)/1023
elif message[0] == 'B':
value = message[1:]
op('table2')['B',1] = float(value)/1023
elif message[0] == 'C':
value = message[1:]
op('table2')['C',1] = float(value)/1023
elif message[0] == 'D':
value = message[1:]
op('table2')['D',1] = float(value)/1023
elif message[0] == 'E':
value = message[1:]
op('table2')['E',1] = float(value)/1023
elif message[0] == 'F':
value = message[1:]
op('table2')['F',1] = float(value)/1023
return
And I have the separate value in different tables.
Oh I see! Thank you for your help.
I dont know if I could somehow do the same thing as you with my current arduino code, or if I have to completely change the arduino code.
This is the code I´m using right now:
// trigger/echo pin pairs.
const byte rangers [][2] { {9, 10}, {5,4}, {12, 13}, {7, 6}};
void setup()
{
for (auto& ranger : rangers) {
pinMode(ranger [0], OUTPUT);
digitalWrite (ranger [0], LOW);
pinMode(ranger [1], INPUT);
}
Serial.begin(9600);
}
int range (const byte ranger [])
{
digitalWrite(ranger [0], HIGH);
delayMicroseconds (10);
digitalWrite(ranger [0], LOW);
unsigned long duration = pulseIn(ranger [1], HIGH);
return duration / 58.2;
}
void loop()
{
for (int i = 0; i < 4; i++) {
int distance = range (rangers [i]);
if(distance > 0 && distance < 50){
Serial.print(distance);
}
Serial.println ();
delay (50); // Ping no more frequently than 20 Hz
}
}
You need to test with real devices:
I would use that on Arduino:
// trigger/echo pin pairs.
const byte rangers [][2] { {9, 10}, {5, 4}, {12, 13}, {7, 6}};
void setup()
{
for (auto& ranger : rangers) {
pinMode(ranger [0], OUTPUT);
digitalWrite (ranger [0], LOW);
pinMode(ranger [1], INPUT);
}
Serial.begin(9600);
}
int range (const byte ranger [])
{
digitalWrite(ranger [0], HIGH);
delayMicroseconds (10);
digitalWrite(ranger [0], LOW);
unsigned long duration = pulseIn(ranger [1], HIGH);
return duration / 58.2;
}
void loop()
{
int distance = range (rangers [0]);
String A = "A";
A += distance;
Serial.println(A);
distance = range (rangers [1]);
String B = "B";
B += distance;
Serial.println(B);
distance = range (rangers [2]);
String C = "C";
C += distance;
Serial.println(C);
distance = range (rangers [3]);
String D = "D";
D += distance;
Serial.println(D);
delay (10); // Ping no more frequently than 20 Hz
}
and that on callback
def onReceive(dat, rowIndex, message, bytes):
if message[0] == 'A':
value = message[1:]
op('table2')['A',1] = float(value)/1023
elif message[0] == 'B':
value = message[1:]
op('table2')['B',1] = float(value)/1023
elif message[0] == 'C':
value = message[1:]
op('table2')['C',1] = float(value)/1023
elif message[0] == 'D':
value = message[1:]
op('table2')['D',1] = float(value)/1023
return
Thank you very much for your reply. Appreciate it!
