【AT-START-F405测评】+自动补水加湿器
本帖最后由 suncat0504 于 2024-5-9 08:48 编辑在完成显示部分和温湿度传感器部分的工作后，追加水位检测传感器和抽水马达、加湿器模块。整个装置如下：水位检测和加湿器部分，都是现成的模块。抽水马达使用继电器模块和专用的驱动电源。因为抽水马达的工作电流比较大，不能使用开发板上的电源，所以单独为它准备了一个电源，是由9V电源通过降压得到3.7左右。开发板通过GPIO口控制继电器模块接通/关断抽水马达的供电，从而控制补水过程。水源由一个矿泉水桶提供，使用的水桶体积比较大，可以使用好长时间，不需要频繁换水。水位传感器：这是一个电容式的水位检测传感器，需要靠近水源即可。感应结果可以直接输入到GPIO口，通过电平信号，确定容器内是否有水。容器的厚度不能太大，否则传感器无法正常感应到是否有水。
整个装置的工作过程：主处理程序：/**
**************************************************************************
* @file main.c
* @brief main program
**************************************************************************
* Copyright notice & Disclaimer
*
* The software Board Support Package (BSP) that is made available to
* download from Artery official website is the copyrighted work of Artery.
* Artery authorizes customers to use, copy, and distribute the BSP
* software and its related documentation for the purpose of design and
* development in conjunction with Artery microcontrollers. Use of the
* software is governed by this copyright notice and the following disclaimer.
*
* THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES,
* GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS,
* TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR
* STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS,
* INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
*
**************************************************************************
*/
/* includes */
#include "at32f402_405_board.h"
#include "at32f402_405_clock.h"
#include "spitft.h"
#include "gxht30.h"
#define MYMAC_PORT GPIOB
#define MYMAC_WATER_POS_PIN GPIO_PINS_8 // 水位采集口，输入
#define MYMAC_MOTOR_PIN GPIO_PINS_9 // 抽水马达控制口，输出
#define MYMAC_H_POWER_PIN GPIO_PINS_7 // 加湿器电源
// 启动加湿器时的湿度临界点
#define WORK_HUMI60
// 每补水一次，隔多长时间再次见此是否缺水
#define WORK_JIANXIE_SEC-10
// 每次补水的时间
#define WORK_BUSHUI_SEC4
// 控制加湿器电源
#define OPEN_H_POWER() gpio_bits_set(MYMAC_PORT, MYMAC_H_POWER_PIN);
#define CLOSE_H_POWER() gpio_bits_reset(MYMAC_PORT, MYMAC_H_POWER_PIN);
// 控制补水马达工作
#define OPEN_MOTOR() gpio_bits_set(MYMAC_PORT, MYMAC_MOTOR_PIN);
#define CLOSE_MOTOR() gpio_bits_reset(MYMAC_PORT, MYMAC_MOTOR_PIN);
// 补水标志
int32_t bushui_flag = 0;
/** @addtogroup AT32F405_periph_examples
* @{
*/
/** @addtogroup 405_GPIO_led_toggle GPIO_led_toggle
* @{
*/
/**
* 加湿器相关控制口初始化
* PB8 - 水位传感器采集信号
* PB9 - 抽水马达控制信号
* PB7 - 控制加湿器的电源信号
*/
void mymac_Init(void) {
gpio_init_type gpio_init_struct;
// 允许总线时钟
crm_periph_clock_enable(CRM_GPIOB_PERIPH_CLOCK, TRUE);
// 设置初始化缺省参数
gpio_default_para_init(&gpio_init_struct);
// 设置水位信号采集口，输入模式
gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
gpio_init_struct.gpio_out_type= GPIO_OUTPUT_PUSH_PULL;
gpio_init_struct.gpio_mode = GPIO_MODE_INPUT;
gpio_init_struct.gpio_pull = GPIO_PULL_DOWN;
gpio_init_struct.gpio_pins = MYMAC_WATER_POS_PIN;
gpio_init(MYMAC_PORT, &gpio_init_struct);
// 抽水马达控制口，输出模式; 加湿器电源，输出模式
gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
gpio_init_struct.gpio_out_type= GPIO_OUTPUT_PUSH_PULL;
gpio_init_struct.gpio_mode = GPIO_MODE_OUTPUT;
gpio_init_struct.gpio_pins = MYMAC_MOTOR_PIN | MYMAC_H_POWER_PIN;
gpio_init_struct.gpio_pull = GPIO_PULL_NONE;
gpio_init(MYMAC_PORT, &gpio_init_struct);
}
/**
* @briefmain function.
* @paramnone
* @retval none
*/
int main(void) {
float temperature; // temperature [°C]
float humidity; // relative humidity [%RH]
char val={'\0'};
etError error; // error code
system_clock_config();
at32_board_init();
uart_print_init(115200);
printf("Start main ...\r\n");
// 初始化TFT显示屏
Lcd_Init();
// 测试
Lcd_Clear(BLACK);
Gui_DrawFont_GBK16(8,10,WHITE, BLACK, (unsigned char *)"Artery & 21IC");
Gui_DrawFont_GBK16(30,36,WHITE, BLACK, (unsigned char *)"AT32F405");
Gui_DrawFont_GBK16(0, 60,WHITE, BLACK, (unsigned char *)"初始化：");
Gui_DrawFont_GBK16(10, 76,WHITE, BLACK, (unsigned char *)"水位控制接口");
// 初始化水位传感器、抽水马达控制口
at32_led_on(LED2);
mymac_Init();
Gui_DrawFont_GBK16(10, 92,WHITE, BLACK, (unsigned char *)"OK");
at32_led_off(LED2);
at32_led_on(LED3);
// 初始化温湿度传感器GXHT-30
Gui_DrawFont_GBK16(10, 76,WHITE, BLACK, (unsigned char *)"温度传感器");
gxht30_Init(GXHT30_ADDRESS);
Gui_DrawFont_GBK16(10, 92,WHITE, BLACK, (unsigned char *)"OK");
Gui_DrawFont_GBK16(0, 60, WHITE, BLACK, (unsigned char *)" ");
Gui_DrawFont_GBK16(10, 76,WHITE, BLACK, (unsigned char *)" ");
Gui_DrawFont_GBK16(10, 92,WHITE, BLACK, (unsigned char *)" ");
at32_led_off(LED3);
Gui_DrawFont_GBK16(0, 110, WHITE, BLACK, (unsigned char *)"温度");
Gui_DrawFont_GBK16(32,110, WHITE, BLACK, (unsigned char *)"=");
Gui_DrawFont_GBK16(0, 126,WHITE, BLACK, (unsigned char *)"湿度");
Gui_DrawFont_GBK16(32,126,WHITE, BLACK, (unsigned char *)"=");
while(1) {
//at32_led_toggle(LED2);
//delay_ms(200);
//at32_led_toggle(LED3);
//delay_ms(200);
//at32_led_toggle(LED4);
//delay_ms(200);
// 测量温湿度，方法2：OK
SHT30_read_result(GXHT30_ADDRESS, &temperature, &humidity);
sprintf(val, "%5.1f", temperature);
Gui_DrawFont_GBK16(48,110,WHITE, BLACK, (unsigned char *)val);
sprintf(val, "%5.1f", humidity);
Gui_DrawFont_GBK16(48,126, WHITE, BLACK, (unsigned char *)val);
// 湿度在60以上时，加湿器不工作
if (humidity >= 60) {
CLOSE_H_POWER();
continue;
} else {
// 启动加湿器
OPEN_H_POWER();
}
// 检查水位
if (gpio_input_data_bit_read(MYMAC_PORT, MYMAC_WATER_POS_PIN)) {
Gui_DrawFont_GBK16(0, 60, WHITE, BLACK, (unsigned char *)" ");
//gpio_bits_reset(GXHT30_PORT, MYMAC_MOTOR_PIN);
} else {
// 水量不足时
Gui_DrawFont_GBK16(0, 60, WHITE, BLACK, (unsigned char *)"水量不足 ");
// 设置加水标志
if (bushui_flag==0) {
bushui_flag = 1;
}
}
if (bushui_flag==1) {
// 启动补水马达
OPEN_MOTOR();
Gui_DrawFont_GBK16(0, 76, WHITE, BLACK, (unsigned char *)"开始补水 ");
}
if (bushui_flag>0) {
sprintf(val, "开始补水:%d", bushui_flag);
Gui_DrawFont_GBK16(0,76, WHITE, BLACK, (unsigned char *)val);
bushui_flag++;
if (bushui_flag > WORK_BUSHUI_SEC) {
// 补水3秒后，关闭补水马达，清除补水标志
CLOSE_MOTOR();
bushui_flag = WORK_JIANXIE_SEC;
Gui_DrawFont_GBK16(0, 76, WHITE, BLACK, (unsigned char *)"补水完成 ");
}
}
if (bushui_flag<0) {
bushui_flag++;
sprintf(val, "间歇期:%d", 0-bushui_flag);
Gui_DrawFont_GBK16(0,76, WHITE, BLACK, (unsigned char *)val);
}
delay_ms(1000);
}
}
/**
* @}
*/
/**
* @}
*/
启动抽水马达，开始补水 牛哇，点赞。。。。 完整的最小模拟系统，不错啊。
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