Connection diagram of microcontroller module and DS18B20

//Function: negative temperature display, high precision grid can display -9.99C to 99.99C //           With alarm device //           When the temperature is positive, display the tens, units, tenths and percentiles //          When the temperature is negative, display the negative sign, tens, units and tenth

Appearance: Code: main.c file   #include "smg.h" #include "ds18b20.h"     /******************************************************************************* * Function name: main * Function : Main function * Input: None * Output    : None ***************************************************************************

Features: The unique single bus interface mode only requires one line when DS18B20 is connected to the microprocessor to achieve two-way communication between the microprocessor and DS18B20, which greatly improves the anti-interference ability of the system. The temperature measurement range is -55℃～+125℃, with an a

         Haha, I finally realized a digital electronic clock with relatively complete functions according to my own ideas.           LCD display content: 2012-02-02 14'C // Line 1                                        00:20:38 Thurs // Line 2          This clock can display both the temperature and the day of th

1#include NXP/iolpc2148.h 2#include stdio.h 3#include "uart.h" //System clock 4#define Fosc 12000000UL //Crystal oscillator clock 5#define Fcclk (Fosc * 5) //System frequency, must be an integer multiple of Fosc (1~32) and = 60MHZ 6#define Fcco (Fcclk * 4) //CCO frequency must be 2, 4, 8, or 16 times of Fcclk, ra

#include avr/io.h          #include util/delay.h #include avr/interrupt.h //Interrupt function header file //×××××××××××××pin macro definition×××××××××××××× //18B20 definition #define SET_DQ (PORTE) |= (1 (PE7)) // 18b20 high level #define CLR_DQ (PORTE) &=~(1 (PE7)) // 18b20 low level #define DQ_IN (PINE) & (1 (PE

C Code   #include "my51.h"   #include "smg.h"   #include "ds18b20.h"      void main() //Test, 6-digit digital tube displays temperature value   {       u8 i=0;       u16 temp=0;       while(1)       {              temp=ds18b20_readTemperaData();           for(i=0;i 100;i++)           {               di

Through the previous example of LCD1602, I believe that we have a basic understanding of the control and delay of the IO port. Now let's take another example of a temperature sensor, which also only requires IO port operation and delay. First, let's introduce the DS18B20 temperature sensor. Since it is a temperature se