NewPing, Firmata & Maxuino

Projects Interfacing w/ Software on the Computer
1

Afternoon all,

I am using the NewPing library with the 4-pin Ultrasonic HC-SR04. I wish to read the distance data into Maxuino using Firmata. Is there a simple way to integrate the NewPing code into the StandardFirmata sketch and hence read the values as integer values in Maxuino (to ultimately control an audio parameter)?

I am a Max user with limited C programming knowledge.

Any thoughts would be much appreciated,

Thanks,

Michael

2

Here's the Arduino (NewPingExample) code:

#include <NewPing.h>

#define TRIGGER_PIN 12 // Arduino pin tied to trigger pin on the ultrasonic sensor.
#define ECHO_PIN 11 // Arduino pin tied to echo pin on the ultrasonic sensor.
#define MAX_DISTANCE 200 // Maximum distance we want to ping for (in centimeters). Maximum sensor distance is rated at 400-500cm.

NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE); // NewPing setup of pins and maximum distance.

void setup() {
Serial.begin(115200); // Open serial monitor at 115200 baud to see ping results.
}

void loop() {
delay(50); // Wait 50ms between pings (about 20 pings/sec). 29ms should be the shortest delay between pings.
unsigned int uS = sonar.ping(); // Send ping, get ping time in microseconds (uS).
Serial.print("Ping: ");
Serial.print(uS / US_ROUNDTRIP_CM); // Convert ping time to distance in cm and print result (0 = outside set distance range)
Serial.println("cm");
}

3

Is there a simple way to integrate the NewPing code into the StandardFirmata sketch

The simple answer is no. There is no need to stupify the Arduino by using Firmata. If the PC application thinks it needs to, the PC application deserves a rim shot into the bit bucket.