Difference between revisions of "Sensor-Touch Button"
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*Main sensor: '''[[File: TTP223-Preliminary.pdf]]''' | *Main sensor: '''[[File: TTP223-Preliminary.pdf]]''' | ||
| − | == | + | ==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. | ||
| + | {| class="wikitable" | ||
| + | |+Crash Sensor State Table | ||
| + | |- | ||
| + | ! State | ||
| + | ! Voltage Level | ||
| + | |- | ||
| + | |Sensor is not pressed | ||
| + | |HIGH | ||
| + | |- | ||
| + | |Sensor is pressed | ||
| + | |LOW | ||
| + | |} | ||
| + | |||
| + | ===Programming=== | ||
| + | <tab name="Arduino for Microduino" style="width:100%;"> | ||
| + | ==Introduction== | ||
| + | The Crash Sensor is used as a simple input pin. Therefore, the '''pinMode''' and '''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. | ||
| + | |||
| + | <syntaxhighlight lang="cpp" line highlight="1,2,10,11,17,18"> | ||
| + | //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); | ||
| + | } | ||
| + | </syntaxhighlight> | ||
| + | |||
| + | Download the above example: | ||
| + | </tab> | ||
| + | |||
===Program Download=== | ===Program Download=== | ||
*Download and unzip the program: '''[[File:Sensor_Touch Button_Test.zip]]''' | *Download and unzip the program: '''[[File:Sensor_Touch Button_Test.zip]]''' | ||
Revision as of 17:38, 18 August 2017
| Language: | English • 中文 |
|---|
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The product number of Sensor-Touch Button is: MSDS21 Sensor-Touch Button is capacitive touch button sensor module.
ContentsIntroduction of Sensor Pin
AboutSpecification
Documents
UsageBasic FunctionalityThe 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.
ProgrammingIntroductionThe Crash Sensor is used as a simple input pin. Therefore, the pinMode and digitalRead functions will be used. Key Functions
ExampleThis is a simple example which outputs the state of the Crash Sensor to the serial port terminal. Note: Important lines of code are highlighted. //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);
}Download the above example: Program Download
Programming
Hardware Setup
Result
Application
ProjectHistoryGallery
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