• General Pin Out is the standard pin out of a Sensor / Trinket connector.
• Sensor / Trinket's Pin Out is this specific Sensor / Trinket's wiring in relation to the General Pin Out.
• SIGNAL-A / SIGNAL-B are signals that could be digital input, digital output, analog input or analog output. Or special signals such as serial communication (SoftwareSerial, IIC (I2C), etc) or other special signals.
• Not Connected refers to the Pin not being used for this particular Sensor / Trinket.
• Read more about the hub module.

About

Specification

• Sensor voltage
  • 3.3V~5V working voltage

• Size of the sensor
  • Size of the board: 23.5mm*13mm
  • 1.27mm-spacing 4Pin interface connected with sensorhub.
  • CAD drawing of the sensor: File:Sensor CAD.zip

• Function description
  • The static signal of the sensor is HIGH. After being pressed, the signal changes into LOW.

• Connection
  • This sensor can be connected to the following interfaces of the core: D2~D13,A0~A7

Document

• Schematic diagram:
• Main sensors:

Usage

Basic Functionality

The Crash Sensor is a simple Single Pole Single Throw Switch (SPST). When the sensor is not press, the electrical path through it is "open" (electrons cannot flow through it). When the sensor is pressed, the electrical path through it is "closed" (electrons can flow through it). It is an input module which produces a HIGH or LOW voltage depending if pressed or not. A Core module can read the voltage value and determine the state of the Crash Sensor.

Programming

//Define the pin the sensor is connected to
const int CRASH_SENSOR_PIN = 6;

void setup(){
  // put your setup code here, to run once:

  //Initial serial communication port at 9600 baud
  Serial.begin(9600);

  //Configure the pin into input mode
  pinMode(CRASH_SENSOR_PIN, INPUT);
}

void loop(){
  // put your main code here, to run repeatedly:

  //Perform a digital read and store the value into pin_state variable
  int pin_state = digitalRead(CRASH_SENSOR_PIN);

  //Check if the sensor's state is HIGH (not pressed)
  if(pin_state == HIGH){
    Serial.println("Crash sensor is not pressed!");
  }
  //Check if the sensor's state is LOW (pressed)
  else if(pin_state == LOW){
    Serial.println("Crash sensor is pressed!");
  }
  else{}

  //delay 100ms between loops
  delay(100);
}

Program Download

• Download and unzip the program File:Sensor Crash Test.zip
• Or create a new sketch and copy & paste this code: https://gist.github.com/anonymous/d714e491f22fda1c42dd78f9e92b5eb4

Programming

• Follow the Software Getting Started Guide.
• Select the Board, Processor and Port.
• Click [File]->[Open], browse to the project program address, and click "CrashTest.ino" to open the program.
• After confirming all these items are correct, click "→" to download the program to the development board.

Hardware Setup

• Referring to the following diagram, connect the Sensor-Crash to digital port D6 of Microduino-Sensorhub.

Result

• After download, open the serial monitor.
• The static sensor signal is HIGH. After being pressed, it changes into LOW.

Application

• Key switch
• Limit switch

Projects

History

Gallery