mirror of
https://github.com/arduino/Arduino.git
synced 2024-11-29 10:24:12 +01:00
Removed old WifiCheck and WifiSignalStrengthIndicator examples
This commit is contained in:
parent
fab454e805
commit
7fae00bce4
@ -1,53 +0,0 @@
|
||||
/*
|
||||
Arduino Yun Wireless Config Check
|
||||
|
||||
Checks the wireless state of Arduino Yun by calling
|
||||
the linux command iwconfig.
|
||||
|
||||
Upload this to an Arduino Yun via serial (not WiFi)
|
||||
then open the serial monitor to see the status of
|
||||
your Yun's WiFi connection. If it's connected to
|
||||
a wireless network, the ESSID (name) of that network
|
||||
and the signal strength will appear.
|
||||
|
||||
The circuit:
|
||||
* Arduino Yun
|
||||
|
||||
created 22 May 2013
|
||||
by Tom Igoe
|
||||
|
||||
This example code is in the public domain.
|
||||
*/
|
||||
|
||||
#include <Process.h>
|
||||
|
||||
void setup() {
|
||||
Serial.begin(9600); // initialize serial communication
|
||||
while(!Serial); // do nothing until the serial monitor is opened
|
||||
|
||||
pinMode(13,OUTPUT);
|
||||
digitalWrite(13, LOW);
|
||||
Bridge.begin(); // make contact with the linux processor
|
||||
digitalWrite(13, HIGH);
|
||||
|
||||
delay(2000); // wait 2 seconds
|
||||
|
||||
Process wifiCheck; // initialize a new process
|
||||
|
||||
|
||||
wifiCheck.begin("iwconfig"); // command you want to run
|
||||
wifiCheck.addParameter("wlan0"); // parameter of the command
|
||||
wifiCheck.run(); // run the command
|
||||
|
||||
// while there's any characters coming back from the
|
||||
// process, print them to the serial monitor:
|
||||
while (wifiCheck.available() > 0) {
|
||||
char thisChar = wifiCheck.read();
|
||||
Serial.print(thisChar);
|
||||
}
|
||||
}
|
||||
|
||||
void loop() {
|
||||
// nothing to do here.
|
||||
}
|
||||
|
@ -1,112 +0,0 @@
|
||||
/*
|
||||
Wifi Signal Strength Indicator
|
||||
|
||||
This example demonstrates the use of the bridge and process libraries
|
||||
to communicate between the Arduino side and the linux side of the Arduino Yun.
|
||||
|
||||
The Linux script returns the strength of the wifi signal.
|
||||
|
||||
The Arduino sketch uses LEDs to indicate whether the current value of
|
||||
the signal strength is above, below, or the same as the last value
|
||||
|
||||
The circuit:
|
||||
* LEDs on pins 8, 9, and 10
|
||||
* Built-in LED on pin 13
|
||||
|
||||
The script:
|
||||
The following one line script must exist in the /root directory of the
|
||||
linux file system, in a file named "wifiStrength.sh", and it must be executable:
|
||||
|
||||
tail -1 /proc/net/wireless | cut -c22-23
|
||||
|
||||
created 06 June 2013
|
||||
by Michael Shiloh
|
||||
modified 08 June 2013
|
||||
by Tom Igoe
|
||||
|
||||
This example code is in the public domain
|
||||
|
||||
*/
|
||||
|
||||
|
||||
#include <Process.h>
|
||||
|
||||
// global variable to store the last value of the signal strength
|
||||
int lastValue;
|
||||
|
||||
void setup() {
|
||||
// set up LED pins as outputs:
|
||||
pinMode(8, OUTPUT);
|
||||
pinMode(9, OUTPUT);
|
||||
pinMode(10, OUTPUT);
|
||||
pinMode(13,OUTPUT);
|
||||
|
||||
// Indicate that you're ready by flashing pin 13 LED twice
|
||||
for (int flash = 0; flash < 3; flash++) {
|
||||
digitalWrite(13,HIGH);
|
||||
delay(200);
|
||||
digitalWrite(13,LOW);
|
||||
delay(800);
|
||||
}
|
||||
// initialize Serial and Bridge:
|
||||
Serial.begin(9600);
|
||||
Bridge.begin();
|
||||
|
||||
// Indicate that setup is finished
|
||||
digitalWrite(13,HIGH);
|
||||
}
|
||||
|
||||
void loop() {
|
||||
int value = 0; // the signal strength as an integer
|
||||
String result; // the result of the process as a String
|
||||
Process wifiCheck; // the process itself
|
||||
|
||||
|
||||
// Run the script on the linux side. Note that any word
|
||||
//or text separated by a tab or space is considered
|
||||
//an additional parameter:
|
||||
wifiCheck.begin("ash");
|
||||
wifiCheck.addParameter("/root/wifiStrength.sh");
|
||||
wifiCheck.run();
|
||||
|
||||
// If the process has sent any characters:
|
||||
while (wifiCheck.available()>0) {
|
||||
result = wifiCheck.readString(); // read the result into a string
|
||||
value = result.toInt(); // parse the string as an int
|
||||
}
|
||||
|
||||
// for debugging
|
||||
Serial.print("previous strength:");
|
||||
Serial.print(lastValue);
|
||||
Serial.print("\tcurrent strength:");
|
||||
Serial.println(value);
|
||||
|
||||
// indicate the relative string by lighting the appropriate LED
|
||||
allOff(); // turn off all the LEDS
|
||||
|
||||
if (value > lastValue) { // if the signal's getting stronger
|
||||
digitalWrite(10, HIGH);
|
||||
}
|
||||
else if (value < lastValue){ // if the signal's getting weaker
|
||||
digitalWrite(8, HIGH);
|
||||
}
|
||||
else { // if the signal's stayed steady
|
||||
digitalWrite(9, HIGH);
|
||||
}
|
||||
|
||||
lastValue = value; // record this value for next time
|
||||
delay(10); // small delay before next time through the loop
|
||||
}
|
||||
|
||||
|
||||
void allOff() {
|
||||
digitalWrite(8, LOW);
|
||||
digitalWrite(9, LOW);
|
||||
digitalWrite(10, LOW);
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user