基于stm32的胰岛素泵

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基于STM32的胰岛素泵设计概览

1. 流程图

+-------------------+       +------------------+     +-----------------+
| Start             |------>| Initialize STM32 |---->| Display Setup   |
+-------------------+       +------------------+     +-----------------+
            |                                 |                |
            v                                 v                v
+-------------------+       +------------------+     +-----------------+
| Read Sensors      |<------| Check Battery    |<----| Update Display  |
+-------------------+       +------------------+     +-----------------+
            |                                 |                |
            v                                 v                v
+-------------------+       +------------------+     +-----------------+
| Process User Input|------>| Control Motor    |---->| Alarm System    |
+-------------------+       +------------------+     +-----------------+
            |                                 |                |
            v                                 v                v
+-------------------+       +------------------+     +-----------------+
| Save State        |------>| End of Cycle     |<----| Wait for Event  |
+-------------------+       +------------------+     +-----------------+

2. 电路图（简化版）

+---------------+     +---------------+     +---------------+
| STM32 MCU     |-----| LCD Display   |-----| Battery       |
| (STM32F103)   |     |               |     |               |
+---------------+     +---------------+     +---------------+
          |                     |                 |
          |                     |                 |
+---------------+     +---------------+     +---------------+
| Step Motor    |-----| Vibration     |-----| Keypad        |
| Driver        |     | Motor         |     |               |
+---------------+     +---------------+     +---------------+
          |                     |                 |
          |                     |                 |
+---------------+     +---------------+     +---------------+
| Hall Effect   |-----| Buzzer        |-----| Bluetooth     |
| Sensor        |     |               |     | Module        |
+---------------+     +---------------+     +---------------+

3. C++程序示例

3.1 初始化和配置

#include "stm32f1xx_hal.h"
#include 

// GPIO definitions
#define BUTTON_PIN   GPIO_PIN_0
#define BUTTON_GPIO  GPIOA
#define BUZZER_PIN   GPIO_PIN_1
#define BUZZER_GPIO  GPIOA
#define LCD_RS       GPIO_PIN_2
#define LCD_EN       GPIO_PIN_3
#define LCD_D4       GPIO_PIN_4
#define LCD_D5       GPIO_PIN_5
#define LCD_D6       GPIO_PIN_6
#define LCD_D7       GPIO_PIN_7
#define LCD_GPIO     GPIOA

void setup() {
    // Initialize the HAL library
    HAL_Init();

    // Configure GPIOs for buttons, buzzer, and LCD
    __HAL_RCC_GPIOA_CLK_ENABLE();
    GPIO_InitTypeDef GPIO_InitStruct = {0};
    GPIO_InitStruct.Pin = BUTTON_PIN | BUZZER_PIN | LCD_RS | LCD_EN | LCD_D4 | LCD_D5 | LCD_D6 | LCD_D7;
    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    HAL_GPIO_Init(LCD_GPIO, &GPIO_InitStruct);

    // Initialize LCD display
    lcd_init();
}

3.2 控制电机和显示更新

void loop() {
    // Read battery level
    uint16_t batteryLevel = readBatteryLevel();

    // Check if battery is low
    if (batteryLevel < 20) {
        buzzAlarm();
        vibrateAlarm();
    }

    // Read insulin level from sensor
    float insulinLevel = readInsulinLevel();

    // Check if insulin is low
    if (insulinLevel < 10) {
        buzzAlarm();
        vibrateAlarm();
    }

    // Read motor status
    bool motorBlocked = checkMotorStatus();

    // Check if motor is blocked
    if (motorBlocked) {
        buzzAlarm();
        vibrateAlarm();
    }

    // Update display with current state
    updateDisplay(batteryLevel, insulinLevel);

    // Process user input
    processUserInput();

    // Control motor based on settings
    controlMotor();

    // Delay to prevent excessive CPU usage
    HAL_Delay(100);
}

注意事项

• 确保所有硬件组件正确连接并初始化。
• 使用STM32 HAL库或CMSIS库进行底层硬件操作。
• 集成蓝牙模块实现手机通信功能，可能需要额外的协议栈和应用程序开发。

结论

此设计方案提供了基于STM32的胰岛素泵的基本框架，包括硬件电路和软件控制流程。实际应用中，需进一步细化和优化各部分功能，并确保系统的安全性和可靠性。