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Today, I will talk to you about the use of GP2Y1010AU0F dust sensor under the STM32 platform and what the source code is. Many people may not know much about it. In order to make you understand better, the editor has summarized the following content for you. I hope you can get something according to this article.

The wiring of the GP2Y1010AU0F sensor is as follows:

The analog signal is received by PA0, and the pulse signal is sent by PB1.

The code is as follows:

GP2Y.c

# include "GP2Y.h" # include "system.h" u16 AD_PM;void GP2Yinit (void) {/ / define variables ADC_InitTypeDef Atom InitStructure; GPIO_InitTypeDef Gateway InitStructure; / / PA0 GPIO_InitTypeDef Gpio_InitStructure;//PB1 RCC_APB2PeriphClockCmd (RCC_APB2Periph_GPIOA | RCC_APB2Periph_ADC1, ENABLE); / / enable ADC2 channel clock RCC_ADCCLKConfig (RCC_PCLK2_Div6) / / set the ADC frequency division factor 672m / PA0 / 12 the maximum time of the analog channel input pin G_InitStructure.GPIO_Pin = GPIO_Pin_0; G_InitStructure.GPIO_Mode = GPIO_Mode_AIN; / / analog input pin GPIO_Init (GPIOA, & G_InitStructure); ADC_DeInit (ADC1) / / reset ADC1, reset all registers of the peripheral ADC1 to the default A_InitStructure.ADC_Mode = ADC_Mode_Independent; / / ADC operating mode: ADC1 and ADC2 work in independent mode A_InitStructure.ADC_ScanConvMode = DISABLE; / / A / D conversion works in single channel mode A_InitStructure.ADC_ContinuousConvMode = DISABLE; / / A / D conversion works in single conversion mode A_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None / / conversion starts A_InitStructure.ADC_DataAlign = ADC_DataAlign_Right; / / ADC data right alignment A_InitStructure.ADC_NbrOfChannel = 1 by software instead of external trigger; / / the number of ADC channels that perform regular conversion in sequence ADC_Init (ADC1, & A_InitStructure); / / initializes the register ADC_Cmd (ADC1, ENABLE) of the peripheral ADCx according to the parameters specified in ADC_InitStruct / / enable the specified ADC1 ADC_ResetCalibration (ADC1); / / enable reset Calibration while (ADC_GetResetCalibrationStatus (ADC1)); / / wait for reset Calibration to end ADC_StartCalibration (ADC1); / / enable AD Calibration while (ADC_GetCalibrationStatus (ADC1)); / / wait for Calibration to end Gpio_InitStructure.GPIO_Pin = GPIO_Pin_1 Gpio_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;// push-pull output Gpio_InitStructure.GPIO_Speed=GPIO_Speed_50MHz; GPIO_Init (GPIOB, & Gpio_InitStructure); GP2Y_High;} void GetGP2Y (void) {float pm; GP2Y_Low; delay_us (280); AD_PM = Get_Adc (ADC_Channel_0) / / PA0 delay_us (40); GP2Y_High; delay_us (9680); pm = 0.17 A / D dust conversion printf ("% f\ n", pm);}

GP2Y.h

# ifndef _ GP2Y_H#define _ GP2Y_H#include "stm32f10x_lib.h" # define GP2Y_High GPIO_SetBits (GPIOB,GPIO_Pin_1); # define GP2Y_Low GPIO_ResetBits (GPIOB,GPIO_Pin_1); void GP2Yinit (void); void GetGP2Y (void); # endif

PB1 output waveform

Get the dust value.

According to the figure above, the formula is calculated as follows: dustDensity = 0.17 * calcVoltage-0.1.

After reading the above, do you have any further understanding of the use and source code of GP2Y1010AU0F dust sensor on STM32 platform? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

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