Si1143 Gesture Sensor sample.
Fork of Gesture_Sensor by
About Si1143
Si1143 is a gesture sensor and can be controlled by using the I2C.
This can be detected from the shortest 1cm up to 200cm.
Si1143 emits three infrared LED that is mounted on a substrate, and detects the movement by measuring the reflected light from the external object.
- Datasheet of Si1143
http://www.silabs.com/Support%20Documents/TechnicalDocs/Si114x.pdf
About sample program
When you hold your hand on the upper of LED1 of Si1143, LED1 (red) of GR-PEACH lights up.
When you hold your hand on the upper of LED2 of Si1143, LED2 (green) of GR-PEACH lights up.
When you hold your hand on the upper of LED3 of Si1143, LED3 (blue) of GR-PEACH lights up.
When you approach your hand to LED of Si1143, level of the LED light will output a large value.
About wiring
| Sensor | GR-PEACH |
| GND | GND |
| VIN | 3.3V |
| SCL | D15 |
| SDA | D14 |
main.cpp
- Committer:
- GAT27
- Date:
- 2013-10-21
- Revision:
- 1:a4c6fbb79eba
- Parent:
- 0:03bf686bd26a
- Child:
- 2:27f94c9a29ec
File content as of revision 1:a4c6fbb79eba:
#include "mbed.h"
#include "SI1143.h"
SI1143 sensor(p28, p27);
DigitalOut led1(LED1);
DigitalOut led2(LED2);
DigitalOut led3(LED3);
int main()
{
int sense1,sense2,sense3;
// Setup the baseline
sensor.bias(1,5);
wait(1);
while(1)
{
// Read each led sensor
sense1 = sensor.get_ps1(1);
sense2 = sensor.get_ps2(1);
sense3 = sensor.get_ps3(1);
// Can be changed for different sensitivity
if (sense1 > 80 || sense2 > 80 || sense3 > 80)
{
if (sense1 > sense2 && sense1 > sense3)
{
led1=1;
led2=0;
led3=0;
}
else if(sense2 > sense1 && sense2 > sense3)
{
led1=0;
led2=1;
led3=0;
}
else if(sense3 > sense1 && sense3 > sense2)
{
led1=0;
led2=0;
led3=1;
}
}
else
{
led1=0;
led2=0;
led3=0;
}
//Numeriacl output through terminal
printf("%d-%d-%d\r\n",sense1,sense2,sense3);
}
}
