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add more examples from Arduino-1.8
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‎sduino/examples/06.Sensors/Ping/Makefile‎

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BOARD_TAG = stm8sblue
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include ../../../sduino.mk

‎sduino/examples/06.Sensors/Ping/Ping.c‎

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/* Ping))) Sensor
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This sketch reads a PING))) ultrasonic rangefinder and returns the
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distance to the closest object in range. To do this, it sends a pulse
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to the sensor to initiate a reading, then listens for a pulse
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to return. The length of the returning pulse is proportional to
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the distance of the object from the sensor.
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The circuit:
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* +V connection of the PING))) attached to +5V
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* GND connection of the PING))) attached to ground
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* SIG connection of the PING))) attached to digital pin 7
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http://www.arduino.cc/en/Tutorial/Ping
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created 3 Nov 2008
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by David A. Mellis
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modified 30 Aug 2011
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by Tom Igoe
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modified 1 Mar 2017 for use with sduino
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by Michael Mayer
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This example code is in the public domain.
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*/
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#include <Arduino.h>
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// this constant won't change. It's the pin number
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// of the sensor's output:
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const int pingPin = 7;
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long microsecondsToInches(long microseconds);
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long microsecondsToCentimeters(long microseconds);
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void setup() {
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// initialize serial communication:
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Serial_begin(9600);
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}
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void loop() {
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// establish variables for duration of the ping,
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// and the distance result in inches and centimeters:
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long duration, inches, cm;
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// The PING))) is triggered by a HIGH pulse of 2 or more microseconds.
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// Give a short LOW pulse beforehand to ensure a clean HIGH pulse:
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pinMode(pingPin, OUTPUT);
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digitalWrite(pingPin, LOW);
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delayMicroseconds(2);
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digitalWrite(pingPin, HIGH);
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delayMicroseconds(5);
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digitalWrite(pingPin, LOW);
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// The same pin is used to read the signal from the PING))): a HIGH
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// pulse whose duration is the time (in microseconds) from the sending
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// of the ping to the reception of its echo off of an object.
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pinMode(pingPin, INPUT);
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duration = pulseInLong(pingPin, HIGH, 200000L);
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// convert the time into a distance
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inches = microsecondsToInches(duration);
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cm = microsecondsToCentimeters(duration);
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Serial_print_u(inches);
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Serial_print_s("in, ");
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Serial_print_u(cm);
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Serial_print_s("cm");
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Serial_println();
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delay(100);
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}
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long microsecondsToInches(long microseconds) {
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// According to Parallax's datasheet for the PING))), there are
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// 73.746 microseconds per inch (i.e. sound travels at 1130 feet per
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// second). This gives the distance travelled by the ping, outbound
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// and return, so we divide by 2 to get the distance of the obstacle.
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// See: http://www.parallax.com/dl/docs/prod/acc/28015-PING-v1.3.pdf
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return microseconds / 74 / 2;
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}
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long microsecondsToCentimeters(long microseconds) {
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// The speed of sound is 340 m/s or 29 microseconds per centimeter.
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// The ping travels out and back, so to find the distance of the
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// object we take half of the distance travelled.
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return microseconds / 29 / 2;
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}

‎sduino/examples/06.Sensors/Ping/Ping.txt‎

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Detecting objects with an ultrasonic range finder.

‎sduino/examples/06.Sensors/Ping/layout.png‎

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‎sduino/examples/06.Sensors/Ping/schematic.png‎

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‎sduino/examples/07.Display/barGraph/LEDBarGraph.txt‎

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How to make an LED bar graph.

‎sduino/examples/07.Display/barGraph/Makefile‎

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BOARD_TAG = stm8sblue
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include ../../../sduino.mk

‎sduino/examples/07.Display/barGraph/barGraph.c‎

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/*
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LED bar graph
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Turns on a series of LEDs based on the value of an analog sensor.
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This is a simple way to make a bar graph display. Though this graph
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uses 10 LEDs, you can use any number by changing the LED count
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and the pins in the array.
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This method can be used to control any series of digital outputs that
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depends on an analog input.
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The circuit:
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* 10k Potentiometer, center pin attached to analog input 0
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* one side pin (either one) to ground
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* the other side pin to +3.3V
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* LEDs on pins 0-2, 5 and 7-12 to ground. DO NOT USE the i2c-pins 3 and 4!
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The i2c pins lack the capability to drive the output high on their own.
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A LED connetected to ground will not work on these pins. You could connect
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A LED to Vcc, though. Than it will be lit when a low signal is written to
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the pin.
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created 4 Sep 2010
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by Tom Igoe
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modified 1 Mar 2017 for use with sduino
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by Michael Mayer
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This example code is in the public domain.
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http://www.arduino.cc/en/Tutorial/BarGraph
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*/
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#include <Arduino.h>
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// these constants won't change:
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const int analogPin = A0; // the pin that the potentiometer is attached to
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const int ledCount = 10; // the number of LEDs in the bar graph
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int ledPins[] = {
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0, 1, 2, 5, 7, 8, 9, 10, 11, 12
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}; // an array of pin numbers to which LEDs are attached
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void setup() {
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// loop over the pin array and set them all to output:
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for (int thisLed = 0; thisLed < ledCount; thisLed++) {
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pinMode(ledPins[thisLed], OUTPUT);
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}
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}
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void loop() {
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// read the potentiometer:
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int sensorReading = analogRead(analogPin);
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// map the result to a range from 0 to the number of LEDs:
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int ledLevel = map(sensorReading, 0, 1023, 0, ledCount);
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// loop over the LED array:
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for (int thisLed = 0; thisLed < ledCount; thisLed++) {
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// if the array element's index is less than ledLevel,
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// turn the pin for this element on:
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if (thisLed < ledLevel) {
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digitalWrite(ledPins[thisLed], HIGH);
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}
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// turn off all pins higher than the ledLevel:
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else {
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digitalWrite(ledPins[thisLed], LOW);
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}
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}
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}

‎sduino/examples/07.Display/barGraph/layout.png‎

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‎sduino/examples/07.Display/barGraph/schematic.png‎

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