Diff: TSL2561.cpp

Revision:

0:40ff41e6257e

Child:

1:4e7b35c8d948

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TSL2561.cpp	Thu Nov 16 08:23:57 2017 +0000
@@ -0,0 +1,80 @@
+#include "mbed.h"
+#include "TSL2561.h"
+
+Serial DEBUG(USBTX,USBRX);
+
+myTSL2561::myTSL2561(I2C &i2cBus)
+{
+    i2c = &i2cBus;
+    i2c->frequency(400000);
+}
+
+
+void myTSL2561::begin()
+{
+    power_up_cmd[0] = COMMAND | CONTROL_REG;
+    power_up_cmd[1] = POWER_UP;
+    
+    i2c->write(SLV_WRITE, power_up_cmd, 2);
+    
+    read_cmd = COMMAND | CHECK_REG;
+    
+    i2c->write(SLV_WRITE, &read_cmd, 1);
+    i2c->read(SLV_READ, &check_read, 1);
+    
+}
+
+int myTSL2561::connect_check()
+{
+    check_cmd = COMMAND | CHECK_REG;
+    
+    i2c->write(SLV_WRITE, &check_cmd, 1);
+    i2c->read(SLV_READ, &check_read, 1);
+    
+    DEBUG.printf("CHECK_REG read = %x\r\n",check_read);
+    
+    if(check_read == ID_NUMBER){ return 1;}
+    else{ return 0;}
+}
+
+unsigned int myTSL2561::get_luminosity(unsigned int wait_time)
+{
+    read_cmd = COMMAND | RAW_DATA_LOW;
+    
+    i2c->write(SLV_WRITE, &read_cmd, 1);
+    wait_ms(wait_time);
+    i2c->read(SLV_READ, buff, 2);
+    
+    val[0] = (int)buff[0];    
+    val[1] = (int)buff[1] << 8;   
+    
+    lux = (unsigned int)(val[1] | val[0]);
+    
+    return lux;
+}
+
+unsigned int myTSL2561::set_rate(int channel)
+{
+    timing_cmd[0] = COMMAND | TIMING_REG;
+    
+    if(channel == 0){
+        time = 14;
+        timing_cmd[1] = TIMING | 0x00;
+        i2c->write(SLV_WRITE, timing_cmd, 2);
+    }
+    else if(channel == 1){
+        time = 105;
+        timing_cmd[1] = TIMING | 0x01;
+        i2c->write(SLV_WRITE, timing_cmd, 2);
+    }
+    else if(channel == 2){
+        time = 405;
+        timing_cmd[1] = TIMING | 0x02;
+        i2c->write(SLV_WRITE, timing_cmd, 2);
+    }
+    
+    return time;
+}
+    
+    
+    
\ No newline at end of file