79 lines
2.8 KiB
C
79 lines
2.8 KiB
C
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/* See the file "LICENSE" for the full license governing this code.
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* Alan Marchiori 2015
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* Bucknell University
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* */
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#ifndef __pca9634__
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#define __pca9634__
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#define PCA9634_REG_MODE1 0x00 // Mode register 1
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#define PCA9634_REG_MODE2 0x01 // Mode register 2
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#define PCA9634_REG_PWM0 0x02 // brightness control LED0
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#define PCA9634_REG_PWM1 0x03 // brightness control LED1
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#define PCA9634_REG_PWM2 0x04 // brightness control LED2
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#define PCA9634_REG_PWM3 0x05 // brightness control LED3
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#define PCA9634_REG_PWM4 0x06 // brightness control LED4
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#define PCA9634_REG_PWM5 0x07 // brightness control LED5
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#define PCA9634_REG_PWM6 0x08 // brightness control LED6
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#define PCA9634_REG_PWM7 0x09 // brightness control LED7
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#define PCA9634_REG_GRPPWM 0x0A // group duty cycle
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#define PCA9634_REG_GRPFREQ 0x0B // group frequency
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#define PCA9634_REG_LEDOUT0 0x0C // LED output state 0
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#define PCA9634_REG_LEDOUT1 0x0D // LED output state 1
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#define PCA9634_REG_SUBADR1 0x0E // I2C-bus subaddress 1
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#define PCA9634_REG_SUBADR2 0x0F // I2C-bus subaddress 2
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#define PCA9634_REG_SUBADR3 0x10 // I2C-bus subaddress 3
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#define PCA9634_REG_ALLCALLADR 0x11 // LED All I2C-bus address
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#define PCA9634_ALL_LED_TO_OFF 0x00
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#define PCA9634_ALL_LED_TO_ON 0x55
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#define PCA9634_ALL_LED_TO_PWM 0xAA
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#define PCA9634_ALL_LED_TO_GRPPWM 0xFF
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#define ADDRESS_HI 0x12
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#define ADDRESS_LO 0x34
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#define PCA9634_ERROR_INVALID_LED -1
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#include <Arduino.h>
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#include <Wire.h>
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//#include <i2c_t3.h>
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enum HydroSense_led_name { LED_SIGNAL, LED_GPS, LED_ERROR };
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enum HydroSense_led_color { LED_OFF, LED_GREEN, LED_YELLOW, LED_RED };
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class HydroSense_pca9634
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{
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public:
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// address is the i2c bus adderss of the pca9634 chip
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HydroSense_pca9634(uint8_t address);
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// sets up pca9634 and turns all leds off
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void begin(void);
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// these 3 functions do writes directly to pca9634 registers
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// read that manual if you want to use them.
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uint8_t set_mode2(uint8_t mode2);
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uint8_t set_mode1(uint8_t mode1);
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uint8_t set_brightness(uint8_t led, uint8_t duty_cycle);
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// the value "on" will be written to the PWM duty cycle
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// when using the set_led function. This is how bright the
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// leds will turn on by default. The default is 50.
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// this should be in the range 0-255. 0 is off, 255 is full on.
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void set_on_value(uint8_t on);
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// set the named led/color to the current on value.
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// The other colors in that group are turned off for you.
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uint8_t set_led ( HydroSense_led_name led,
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HydroSense_led_color color );
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private:
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uint8_t _address;
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uint8_t _on_value;
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uint8_t write_reg(uint8_t reg, uint8_t value);
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};
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#endif
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