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ads1x15: extend examples for both ads1015 and ads1115 and clarify which one is used where

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Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
This commit is contained in:
Mihai Tudor Panu
2017-02-07 16:20:13 -08:00
parent 70bcdfefa4
commit dbac88d225
10 changed files with 411 additions and 54 deletions
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33
examples/java/Ads1015Sample.java
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@ -22,9 +22,10 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/* This example demonstrates how to use one of the ADS1015 ADCs on the
* DFRobot Joule Shield with devices that output a small differential
* voltage (e.g. geophones, piezoelectric bands or pads, thermocouples).
/* This example demonstrates how to use one the ADS1015 ADC on the Grove Joule
* Shield or the Sparkfun ADC Block for Edison with devices that output a small
* differential voltage (e.g. geophones, piezoelectric bands or pads,
* thermocouples).
*/
import java.io.*;
import java.util.concurrent.*;
@ -35,7 +36,7 @@ public class Ads1015Sample
static boolean running = true;
static int id = 0; // Sample number
static String fileName = "./ads1015.data"; // Output filename
public static void main(String[] args) throws InterruptedException
{
// Open the output file
@ -48,22 +49,18 @@ public class Ads1015Sample
System.out.println("Failed to open output file for writing: " + e.toString());
System.exit(1);
}
// Initialize and configure the ADS1015 for the SM-24 Geophone
// There are two ADS1015 chips on the DFRobot Joule Shield on the same I2C bus
// - 0x48 gives access to pins A0 - A3
// - 0x49 gives access to pins A4 - A7
// Initialize and configure the ADS1015
ADS1015 ads1015 = new ADS1015(0, (short)0x48);
// Put the ADC into differential mode for pins A0 and A1,
// the SM-24 Geophone is connected to these pins
// Put the ADC into differential mode for pins A0 and A1
ads1015.getSample(ADS1X15.ADSMUXMODE.DIFF_0_1);
// Set the gain based on expected VIN range to -/+ 2.048 V
// Can be adjusted based on application to as low as -/+ 0.256 V, see API
// documentation for details
// documentation for details
ads1015.setGain(ADS1X15.ADSGAIN.GAIN_TWO);
// Set the sample rate to 3300 samples per second (max) and turn on continuous
// sampling
ads1015.setSPS(ADS1015.ADSSAMPLERATE.SPS_3300);
@ -71,24 +68,24 @@ public class Ads1015Sample
// Schedule a task to stop logging after 10 seconds
Executors.newSingleThreadScheduledExecutor().schedule(new Runnable() {
@Override
@Override
public void run() {
running = false;
}
}, 10, TimeUnit.SECONDS);
// Read from sensor and write to file every ms
while(running){
try {
bw.write(id + " " + String.format("%.7f", ads1015.getLastSample()) + "\n");
} catch (IOException e) {
System.out.println("Failed to write sample " + id + " to file: "+ e.toString());
System.exit(1);
System.exit(1);
}
id++;
Thread.sleep(1);
}
// Close and exit
try {
bw.close();