52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
|
/* See the file "LICENSE" for the full license governing this code. */
|
||
|
|
|
||
|
|
#include "PCA9634.h"
|
||
|
|
|
||
|
|
|
||
|
|
static const uint8_t HydroSense_led_map[] = {2, // signal strength green
|
||
|
|
6, // gps green
|
||
|
|
7}; // error
|
||
|
|
|
||
|
|
PCA9634::PCA9634(uint8_t address){
|
||
|
|
_address = address;
|
||
|
|
_on_value = 50;
|
||
|
|
}
|
||
|
|
|
||
|
|
void PCA9634::begin(){
|
||
|
|
// initalize all leds to default PWM control
|
||
|
|
int i;
|
||
|
|
write_reg( PCA9634_REG_MODE1, 0 );
|
||
|
|
write_reg( PCA9634_REG_MODE2, 0x16 ); // INVRT | OUTDRV | OUTNE1
|
||
|
|
write_reg( PCA9634_REG_LEDOUT0, PCA9634_ALL_LED_TO_PWM );
|
||
|
|
write_reg( PCA9634_REG_LEDOUT1, PCA9634_ALL_LED_TO_PWM );
|
||
|
|
for (i=0; i < 8; i++){
|
||
|
|
set_brightness(i, 0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void PCA9634::set_on_value(uint8_t on){
|
||
|
|
_on_value = on;
|
||
|
|
}
|
||
|
|
|
||
|
|
uint8_t PCA9634::set_mode1(uint8_t mode1){
|
||
|
|
return write_reg( PCA9634_REG_MODE1, mode1 );
|
||
|
|
}
|
||
|
|
|
||
|
|
uint8_t PCA9634::set_mode2(uint8_t mode2){
|
||
|
|
return write_reg (PCA9634_REG_MODE2, mode2);
|
||
|
|
}
|
||
|
|
|
||
|
|
uint8_t PCA9634::set_brightness(uint8_t led, uint8_t duty_cycle){
|
||
|
|
// limit led to a 3-bit unsigned value.
|
||
|
|
return write_reg( PCA9634_REG_PWM0 + ( (uint8_t) (led & 0x7) ),
|
||
|
|
duty_cycle );
|
||
|
|
}
|
||
|
|
|
||
|
|
uint8_t PCA9634::write_reg(uint8_t reg, uint8_t value){
|
||
|
|
Wire.beginTransmission( _address );
|
||
|
|
Wire.write( reg );
|
||
|
|
Wire.write( value );
|
||
|
|
return Wire.endTransmission( );
|
||
|
|
|
||
|
|
}
|