EM78P154SPJ
對於EM78P154SPJ的PID溫控器，其所需的零件、燒錄連結腳位和程式碼需要根據具體的設計和應用來確定。這裡提供一個基本的參考：
所需零件：EM78P154SPJ MCU、溫度傳感器、LCD顯示屏、繼電器、按鈕開關等。
燒錄連結腳位：根據EM78P154SPJ的技術規格書，其燒錄連結腳位包括P1.0、P1.1、P1.2等。
程式碼：以下是一個簡單的基於C語言的PID溫控器程式碼示例，可以根據實際需求進行修改和調整。
#include <reg_EM78P154.h>
#include <stdio.h>
#define TEMP_SENSOR_PIN P1.0
#define RELAY_PIN P1.1
#define LCD_RS_PIN P1.2
#define LCD_E_PIN P1.3
#define PID_KP 2.0
#define PID_KI 0.5
#define PID_KD 0.1
float pid_output = 0.0;
float pid_integral = 0.0;
float pid_error = 0.0;
float pid_derivative = 0.0;
float pid_last_error = 0.0;
float target_temp = 25.0;
float current_temp = 0.0;
void delay(int time) {
int i, j;
for (i = 0; i < time; i++)
for (j = 0; j < 1000; j++);
}
float read_temp() {
// TODO: read temperature from sensor
}
void write_lcd(char *str) {
// TODO: write string to LCD
}
void pid_controller() {
pid_error = target_temp - current_temp;
pid_integral += pid_error;
pid_derivative = pid_error - pid_last_error;
pid_output = PID_KP * pid_error + PID_KI * pid_integral + PID_KD * pid_derivative;
pid_last_error = pid_error;
}
void main() {
while (1) {
current_temp = read_temp();
pid_controller();
if (pid_output > 0) {
RELAY_PIN = 1; // turn on relay
} else {
RELAY_PIN = 0; // turn off relay
}
char lcd_str;
sprintf(lcd_str, "T:%.1f S:%.1f", current_temp, pid_output);
write_lcd(lcd_str);
delay(1000); // update every 1 second
}
}
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