Tomo Yamanaka
Si1143 Gesture Sensor sample.
Fork of
Gesture_Sensor
by 
Guillermo Torijano
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 |
Diff: main.cpp
- Revision:
- 0:03bf686bd26a
- Child:
- 1:a4c6fbb79eba
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Thu Oct 17 22:34:00 2013 +0000
@@ -0,0 +1,60 @@
+#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();
+ wait(1);
+
+ while(1)
+ {
+ // Read each led sensor
+ sense1 = sensor.sample(1);
+ sense2 = sensor.sample(2);
+ sense3 = sensor.sample(3);
+
+ // 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);
+ }
+}