本文主要是介绍asrpro 使用pca9685 模块，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
使用asrpro自带的asr_softiic.h 和 arduino Adafruit_PWMServoDriver驱动库
修改处
softiic.start(_i2caddr<<1|0); // 写 0 ，读 1 （地址要左移一位
注释requestfrom ; return 0
#include "asr.h"
extern "C"{ void * __dso_handle = 0 ;}
#include "setup.h"
#include "HardwareSerial.h"
#include "asr_softiic.h"uint32_t snid;
void hardware_init();
void LED();
void ASR_CODE();#define PCA9685_SUBADR1 0x2
#define PCA9685_SUBADR2 0x3
#define PCA9685_SUBADR3 0x4#define PCA9685_MODE1 0x0
#define PCA9685_PRESCALE 0xFE#define LED0_ON_L 0x6
#define LED0_ON_H 0x7
#define LED0_OFF_L 0x8
#define LED0_OFF_H 0x9#define ALLLED_ON_L 0xFA
#define ALLLED_ON_H 0xFB
#define ALLLED_OFF_L 0xFC
#define ALLLED_OFF_H 0xFDclass Adafruit_PWMServoDriver {public:Adafruit_PWMServoDriver(uint8_t addr = 0x40);void begin(void);void reset(void);void setPWMFreq(float freq);void setPWM(uint8_t num, uint16_t on, uint16_t off);void setPin(uint8_t num, uint16_t val, bool invert=false);private:uint8_t _i2caddr;uint8_t read8(uint8_t addr);void write8(uint8_t addr, uint8_t d);
};// class MySoftIIC
// {
// public:
// void begin(){softiic.begin(0,1);}
// void stop(){softiic.stop();}
// void write(uint8_t d){softiic.write(d);}
// uint8_t read(bool b ){softiic.read(b);}
// void requestFrom(uint8_t addr,uint8_t d){};// int start(uint8_t addr){return softiic.start(addr<<1|0);}
// void beginTransmission(uint8_t addr){start(addr);}
// void stop(){softiic.stop();}
// };// MySoftIIC WIRE;// Set to true to print some debug messages, or false to disable them.
#define ENABLE_DEBUG_OUTPUT falseAdafruit_PWMServoDriver::Adafruit_PWMServoDriver(uint8_t addr) {_i2caddr = addr;
}void Adafruit_PWMServoDriver::begin(void) {softiic.begin(0,1);reset();
}void Adafruit_PWMServoDriver::reset(void) {write8(PCA9685_MODE1, 0x0);
}void Adafruit_PWMServoDriver::setPWMFreq(float freq) {//Serial.print("Attempting to set freq ");//Serial.println(freq);freq *= 0.9; // Correct for overshoot in the frequency setting (see issue #11).float prescaleval = 25000000;prescaleval /= 4096;prescaleval /= freq;prescaleval -= 1;if (ENABLE_DEBUG_OUTPUT) {Serial.print("Estimated pre-scale: "); Serial.println(prescaleval);}uint8_t prescale = floor(prescaleval + 0.5);if (ENABLE_DEBUG_OUTPUT) {Serial.print("Final pre-scale: "); Serial.println(prescale);}uint8_t oldmode = read8(PCA9685_MODE1);uint8_t newmode = (oldmode&0x7F) | 0x10; // sleepwrite8(PCA9685_MODE1, newmode); // go to sleepwrite8(PCA9685_PRESCALE, prescale); // set the prescalerwrite8(PCA9685_MODE1, oldmode);delay(5);write8(PCA9685_MODE1, oldmode | 0xa1); // This sets the MODE1 register to turn on auto increment.// This is why the beginTransmission below was not working.// Serial.print("Mode now 0x"); Serial.println(read8(PCA9685_MODE1), HEX);
}void Adafruit_PWMServoDriver::setPWM(uint8_t num, uint16_t on, uint16_t off) {//Serial.print("Setting PWM "); Serial.print(num); Serial.print(": "); Serial.print(on); Serial.print("->"); Serial.println(off);softiic.start(_i2caddr<<1|0);softiic.write(LED0_ON_L+4*num);softiic.write(on);softiic.write(on>>8);softiic.write(off);softiic.write(off>>8);softiic.stop();
}// Sets pin without having to deal with on/off tick placement and properly handles
// a zero value as completely off. Optional invert parameter supports inverting
// the pulse for sinking to ground. Val should be a value from 0 to 4095 inclusive.
void Adafruit_PWMServoDriver::setPin(uint8_t num, uint16_t val, bool invert)
{// Clamp value between 0 and 4095 inclusive.if(val > 4095)val = 4095;if (invert) {if (val == 0) {// Special value for signal fully on.setPWM(num, 4096, 0);}else if (val == 4095) {// Special value for signal fully off.setPWM(num, 0, 4096);}else {setPWM(num, 0, 4095-val);}}else {if (val == 4095) {// Special value for signal fully on.setPWM(num, 4096, 0);}else if (val == 0) {// Special value for signal fully off.setPWM(num, 0, 4096);}else {setPWM(num, 0, val);}}
}uint8_t Adafruit_PWMServoDriver::read8(uint8_t addr) {softiic.start(_i2caddr<<1|0);softiic.write(addr);softiic.stop();//softiic.requestFrom((uint8_t)_i2caddr, (uint8_t)1);//return softiic.read();return 0;
}void Adafruit_PWMServoDriver::write8(uint8_t addr, uint8_t d) {softiic.start(_i2caddr<<1|0);softiic.write(addr);softiic.write(d);softiic.stop();
}Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver();//--------------------------------------------------------///**************************************************************
bool bl = 0;
int i=0;
void LED(){while (1) {//扫描设备 for(int i = 1;i<0x7f;i++){// int val = softiic.start(i<<1 | 0);// softiic.stop();// Serial.print(i,HEX);// Serial.print("ox ");// Serial.println(val,HEX);pwm.begin();pwm.setPWMFreq(1600);pwm.setPin(4,i*46,0);delay(100);}}vTaskDelete(NULL);
}
//------------------------------------------------void setup()
{Serial.begin(9600);delay(100);//softiic.begin(0,1);pinMode(4,output);setPinFun(4,FIRST_FUNCTION);digitalWrite(4,0);//{speak:小蝶-清新女声,vol:10,speed:10,platform:haohaodada}//{playid:10001,voice:欢迎使用语音助手，用天问五幺唤醒我。}//{playid:10002,voice:我退下了，用天问五幺唤醒我}//{ID:0,keyword:"唤醒词",ASR:"天问五幺",ASRTO:"我在"}//{ID:1,keyword:"命令词",ASR:"打开灯光",ASRTO:"好的，马上打开灯光"}//{ID:2,keyword:"命令词",ASR:"关闭灯光",ASRTO:"好的，马上关闭灯光"}xTaskCreate(hardware_init,"hardware_init",256,NULL,100,NULL);
}//--------------------------------------------------------//{ID:250,keyword:"命令词",ASR:"最大音量",ASRTO:"音量调整到最大"}
//{ID:251,keyword:"命令词",ASR:"中等音量",ASRTO:"音量调整到中等"}
//{ID:252,keyword:"命令词",ASR:"最小音量",ASRTO:"音量调整到最小"}
void hardware_init(){xTaskCreate(LED,"LED",256,NULL,4,NULL);vTaskDelete(NULL);
}/*描述该功能...
*/
void ASR_CODE(){switch (snid) {case 1://digitalWrite(4,0);break;case 2://digitalWrite(4,1);break;}}这篇关于asrpro 使用pca9685 模块的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！
