Skip to content

Instantly share code, notes, and snippets.

View ping_scale
/* Ping))) Sensor
This sketch reads a PING))) ultrasonic rangefinder and returns the
distance to the closest object in range. To do this, it sends a pulse
to the sensor to initiate a reading, then listens for a pulse
to return. The length of the returning pulse is proportional to
the distance of the object from the sensor.
The circuit:
* +V connection of the PING))) attached to +5V
View _3_speed_blinking
long previousMillis = 0; // store last time LED was updated
long interval = 100; // blink interval (milliseconds)
void setup() {
pinMode(2, INPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
digitalWrite(4, HIGH); // start with one LED on