Sensor-Crash

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Microduino-Crash Sensor The product number of Sensor-Crash is: MSDS11 Sensor-Crash is a crash sensor, which is used to detect whether a crash has happened. Introduction of Sensor Pin Crash Sensor General Pin Out Sensor / Trinket's Pin Out PIN1 (GND) GND PIN2 (VCC) VCC PIN3 (SIGNAL-A) Digital Input PIN4 (SIGNAL-B) Not Connected 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. Crash Sensor State Table State Voltage Level Sensor is not pressed HIGH Sensor is pressed LOW Programming Arduino for MicroduinoArduino for Microduino Introduction The Crash Sensor is used as a simple input pin. Therefore, the pinMode, digitalRead functions will be used. Key Functions Required Libraries: None Key Functions: pinMode(pin_number, pin_mode) - sets the mode for the pin pin_number - is the pin number that the sensor is connected to pin_mode - is the mode to set the pin to. Either INPUT or OUTPUT digitalRead(pin_number) - Reads the value of the pin pin_number - is the pin number that the sensor is connected to Example This is a simple example which outputs the state of the Crash Sensor to the serial port terminal. Note: Important lines of code are highlighted void function(int i){ int pinNum = 10; digitalWrite(pinNum, HIGH); delay(10); digitalWrite(pinNum, LOW); } Download the above example: File:File.zip 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 File:MicroduinoCrash-F.JPG mCookie-Crash-Front File:Microduino-Crash-b.JPG mCookie-Crash-Back