Milosch Meriac
Discrete RGB colour sensor using a colour LED flashing at high speed and a monochrome LDR (light dependent resistor) for detecting the colour via ADC conversion. The library implements interrupt driven ADC conversion at high speed (370 RGB readings per second, 128 times oversampling per channelfor noise reduction). The detection can optionally run in background.
Dependents: rgb_sensor_buffer discrete_rgb_color_sensor_example
Revision 10:b95dfd2d6d4d, committed 2014-07-09
- Comitter:
- meriac
- Date:
- Wed Jul 09 10:27:38 2014 +0000
- Parent:
- 9:7bd80f4a965e
- Commit message:
- Added RGB_MASK declararation
Changed in this revision
| rgb_sensor.cpp | Show annotated file Show diff for this revision Revisions of this file |
| rgb_sensor.h | Show annotated file Show diff for this revision Revisions of this file |
diff -r 7bd80f4a965e -r b95dfd2d6d4d rgb_sensor.cpp
--- a/rgb_sensor.cpp Thu Jul 03 17:24:41 2014 +0000
+++ b/rgb_sensor.cpp Wed Jul 09 10:27:38 2014 +0000
@@ -140,7 +140,7 @@
if(status & (1UL<<m_adc_channel))
{
/* always read sample to acknowledge IRQ */
- sample = (((&LPC_ADC->ADDR0)[m_adc_channel])>>4) & 0xFFF;
+ sample = (((&LPC_ADC->ADDR0)[m_adc_channel])>>4) & RGB_MASK;
if(!m_done)
{
diff -r 7bd80f4a965e -r b95dfd2d6d4d rgb_sensor.h --- a/rgb_sensor.h Thu Jul 03 17:24:41 2014 +0000 +++ b/rgb_sensor.h Wed Jul 09 10:27:38 2014 +0000 @@ -22,6 +22,8 @@ #ifndef __RGB_SENSOR_H__ #define __RGB_SENSOR_H__ +#define RGB_MASK 0xFFF + #ifndef RGB_LED_ON #define RGB_LED_ON true #endif/*RGB_LED_ON*/