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@technobly
Created April 8, 2014 13:55
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Spark Core Wireless Servo
// WIRELESS SERVO EXAMPLE CODE
// BDub 4/7/2014
//
// Connect RED wire to VIN (~5V)
// Connect ORANGE, YELLOW, or WHITE wire to A0 (servo signal)
// Connect BLACK or BROWN wire to GND (0V)
// Adjust these connections for your particular servo
// if you have a wiring diagram for it.
//
//
// COMPLEMENTARY API CALL
// POST /v1/devices/{DEVICE_ID}/{FUNCTION}
//
// # EXAMPLE REQUEST
// curl https://api.spark.io/v1/devices/0123456789abcdef01234567/servo \
// -d access_token=1234123412341234123412341234123412341234 \
// -d "args=180"
//----------------------------------------------------------------------------
Servo myservo; // create servo object to control a servo
// a maximum of eight servo objects can be created
int pos = 0; // variable to store the servo position
void setup()
{
myservo.attach(A0); // attaches the servo on the A0 pin to the servo object
// register the Spark function
Spark.function("servo", updateServo);
}
void loop()
{
// do nothing
}
//this function automagically gets called upon a matching POST request
int updateServo(String command)
{
// convert string to integer
uint8_t pos = command.toInt();
// process if integer is 0 - 180
if(pos <= 180)
{
// tell servo to go to position in variable 'pos'
myservo.write(pos);
// return an integer success code that can be processed by our app
return 200;
}
else {
// return an integer error code that can be processed by our app
return -1;
}
}
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