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Merge pull request #332 from cmorty/rssi_scanner

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Add numbers to the RSSI-Scanner graph
This commit is contained in:
Adam Dunkels 2013-08-18 04:08:41 -07:00
commit d247eaaad8
1 changed files with 88 additions and 72 deletions
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36
examples/sky/ViewRSSI.java
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@ -3,7 +3,10 @@
* ---------------------------------------------------
* Note: run the rssi-scanner on a Sky or sentilla node connected to USB
* then start with
* make ViewRSSI.class
* make login | java ViewRSSI
* or
* make viewrssi
*
* Created: Fri Apr 24 00:40:01 2009, Joakim Eriksson
*
@ -13,10 +16,13 @@
import javax.swing.*;
import java.awt.*;
import java.io.*;
public class ViewRSSI extends JPanel {
private int[] rssi = new int[80];
private int[] rssiMax = new int[80];
/* 55 is added by the scanner. 45 is the offset of the CC2420 */
private final int DELTA = -55 -45
/* this is the max value of the RSSI from the cc2420 */
private static final int RSSI_MAX_VALUE = 200;
@ -25,12 +31,18 @@ public class ViewRSSI extends JPanel {
}
public void paint(Graphics g) {
int h = getHeight();
int w = getWidth();
double factor = (h - 20.0) / RSSI_MAX_VALUE;
double sSpacing = (w - 15) / 80.0;
int sWidth = (int) (sSpacing - 1);
if (sWidth == 0) sWidth = 1;
if (sWidth == 0)
sWidth = 1;
Graphics2D g2d=(Graphics2D)g;
Font myFont=new Font("Arial", Font.PLAIN, 8);
g2d.setFont( myFont );
g.setColor(Color.white);
g.fillRect(0, 0, w, h);
@ -39,24 +51,26 @@ public class ViewRSSI extends JPanel {
double xpos = 10;
for (int i = 0, n = rssi.length; i < n; i++) {
int rssi = (int) (rssiMax[i] * factor);
g.fillRect((int) xpos, h - 20 - rssi,
sWidth, rssi + 1);
g.fillRect((int) xpos, h - 20 - rssi, sWidth, rssi + 1);
g2d.drawString(Integer.toString(rssiMax[i] + DELTA), (int)xpos,h - 20 - rssi - 5 );
xpos += sSpacing;
}
g.setColor(Color.black);
xpos = 10;
for (int i = 0, n = rssi.length; i < n; i++) {
g.setColor(Color.black);
int rssiVal = (int) (rssi[i] * factor);
g.fillRect((int) xpos, h - 20 - rssiVal,
sWidth, rssiVal + 1);
g.fillRect((int) xpos, h - 20 - rssiVal, sWidth, rssiVal + 1);
g2d.drawString(Integer.toString(rssi[i] + DELTA), (int)xpos,h - 20 - rssiVal - 8 );
g.setColor(Color.white);
g2d.drawString(Float.toString((float)i / 5 + (float)56/5), (int)xpos,h - 20 - 5 );
xpos += sSpacing;
}
}
private void handleInput() throws IOException {
BufferedReader reader =
new BufferedReader(new InputStreamReader(System.in));
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
while (true) {
String line = reader.readLine();
if (line.startsWith("RSSI:")) {
@ -64,8 +78,10 @@ public class ViewRSSI extends JPanel {
String[] parts = line.substring(5).split(" ");
for (int i = 0, n = parts.length; i < n; i++) {
rssi[i] = 3 * Integer.parseInt(parts[i]);
if (rssi[i] > rssiMax[i]) rssiMax[i] = rssi[i];
else if (rssiMax[i] > 0) rssiMax[i]--;
if (rssi[i] >= rssiMax[i])
rssiMax[i] = rssi[i];
else if (rssiMax[i] > 0)
rssiMax[i]--;
}
} catch (Exception e) {
/* report but do not fail... */