LARPtale
commented
9 years ago Guys this is what we will be using and I'm purchasing tonight. They are incredibly cheap and are have good support from the Arduino page; meaning, it comes with an open source code, that we can manipulate. Super excited.
I've attached the link
https://www.arduino.cc/en/Tutorial/Knock http://www.adafruit.com/products/1740?gclid=CjwKEAjwkK6wBRCcoK_tiOT-zFASJAC7RAriUiuKgPG8kPb57IBylcK6CueEX2s2-ZEEQkdqs0VnVxoCc_fw_wcB
Brendan, my though process for why this could be useful for one of the prototypes is because this sensors will act similar to a vibration sensor and will be capable of sensing hits from a larger surface compared to a regular pressure sensor, where, we are limited to the surface area.
In the code below, the incoming piezo data is compared to a threshold value set by the user. Try raising or lowering this value to increase your sensor's overall sensitivity.
/* Knock Sensor
This sketch reads a piezo element to detect a knocking sound. It reads an analog pin and compares the result to a set threshold. If the result is greater than the threshold, it writes "knock" to the serial port, and toggles the LED on pin 13.
The circuit: * + connection of the piezo attached to analog in 0 * - connection of the piezo attached to ground * 1-megohm resistor attached from analog in 0 to ground
http://www.arduino.cc/en/Tutorial/Knock
created 25 Mar 2007 by David Cuartielles http://www.0j0.org modified 30 Aug 2011 by Tom Igoe
This example code is in the public domain.
*/
// these constants won't change: const int ledPin = 13; // led connected to digital pin 13 const int knockSensor = A0; // the piezo is connected to analog pin 0 const int threshold = 100; // threshold value to decide when the detected sound is a knock or not
// these variables will change: int sensorReading = 0; // variable to store the value read from the sensor pin int ledState = LOW; // variable used to store the last LED status, to toggle the light
void setup() { pinMode(ledPin, OUTPUT); // declare the ledPin as as OUTPUT Serial.begin(9600); // use the serial port }
void loop() { // read the sensor and store it in the variable sensorReading: sensorReading = analogRead(knockSensor);
// if the sensor reading is greater than the threshold: if (sensorReading >= threshold) { // toggle the status of the ledPin: ledState = !ledState; // update the LED pin itself: digitalWrite(ledPin, ledState); // send the string "Knock!" back to the computer, followed by newline Serial.println("Knock!"); } delay(100); // delay to avoid overloading the serial port buffer }
As far as I am aware, the difficult parts of the job will be: -1: designing a comfy outfit that works well with the sensors, and -2: working with the sensors (perhaps there are nice libraries--but they aren't needed). This should be less difficult.
I just wrote the basic pseudocode logic for one version of a game, and, while incomplete, I already know what to do with everything but the sensors. So I don't think this will be hard.