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8051 microcontroller proteus library how to#
8051 microcontroller proteus library serial#
8051 microcontroller proteus library code#

The main objective is to apply the system for improvement of health of the soil and hence the plant via sensors.

8051 microcontroller proteus library code#

The entire code has been tested with 8051 microcontroller and it will work with any microcontroller with minor changes.To develop a smart irrigation system to provide irrigation system which is automatic for the plants which help in saving water and money.

8051 microcontroller proteus library serial#

As 8051 has no internal i2c, I have used bit banging method to generate clock and data for serial communication.

8051 microcontroller proteus library how to#

I hope you have understand how to interface DS3231 RTC with 8051 using I2C. Moreover, RTC is equipped with ☒ppm accuracy suitable for real time functions. This makes it a perfect blend for timing applications.ĭS3231 is highly accurate that manages date, time, year, month, day, and seconds. RTC DS3231 is precise in maintaining accurate time with low drift.

Used in telecommunication and networking applications.

Used in Smart power meters for tracking the date and time of current bills.

Used in servers for implementing network timing protocol.

Used in GPS for getting date, time, latitude, longitude, position, height.

Void Write_To_RTC(unsigned char regaddress, unsigned char val)įor(loop_time=0 loop_time<255 loop_time++)

Unsigned char Read_From_RTC(unsigned char Address)

Start the I2C communication using start condition.įor (j= 0 j >j))?1:0 /*Writing bit_by_bit*/.

Here are the steps to communicate with RTC using I2c. ReadDate( ) //Gets the Day,month and year *Infinite WHILE Loop for reading date and time of RTC*/ Initialize_RTC( ) /*Initializing RTC DS3231*/ I have used two pins of 8051 microcontroller to communicate with Real Time Clock using I2C. Here is the complete C code to read RTC date and time. RTC_hour = Convert_BCD_DECIMAL (RTC_hour) If(RTCdate>=0 & RTCdate =0 & RTCmonth =0 & RTCyear > 5) Void Show_Integer_Ascii(unsigned char lineno, unsigned char cursor_position, unsigned long value)ĭisplaying Date on LCD void Display_Date_LCD(void)

Reverse the array to convert to original form.

Store the ASCII character in the array.

Hence, I have written an integer to ASCII function for LCD.įunction to Convert an Integer to ASCII format The problem is the LCD displays only ASCII characters. Because the time and date format of RTC is in integer format. You might struggle if you are working with LCD to display date and time. RTCmonth = Convert_BCD_DECIMAL(RTCmonth ) RTCmonth = (0x1F & Read_From_RTC(month)) RTC_hour = Convert_BCD_DECIMAL(RTC_hour) Hour_twelve_twentyfour=0 //For 24 hour type Unsigned char temp = 0,hour_twelve_twentyfour,t Hence, to read the RTC date and time, convert BCD format to decimal notation. The calendar registers and timekeeping register in RTC gives BCD format. Write_To_RTC(year, (Convert_DECIMAL_BCD(setyear))) Īfter writing the data, we can read the timekeeping registers using following functions. Write_To_RTC(month, (Convert_DECIMAL_BCD(setmonth))) Write_To_RTC(date, (Convert_DECIMAL_BCD(setdate))) Write_To_RTC(day, (Convert_DECIMAL_BCD(setday))) void setDate(unsigned char setday, unsigned char setdate, unsigned char setmonth, unsigned char setyear)

So, we have to convert the Decimal format to BCD notation to write data to RTC. The time and calendar registers are predefined in BCD format. To set the day, date, month year use 04, 05, 06 address. Write_To_RTC(hour, (0x3F & (Convert_DECIMAL_BCD(sethour)))) Write_To_RTC(minute, Convert_DECIMAL_BCD(setminute)) Write_To_RTC(second, Convert_DECIMAL_BCD(setsecond)) void setTime(unsigned char sethour, unsigned char setminute, unsigned char setsecond, short am_pm, short hour_twelve_twentyfour) The RTC has set with 0圆0, 0x40 to enable hour format and AM/PM. Now, you can set the date and time parameters by using setTime and setDate functions. #3 Set the Date and Time using Time keeping registers To enable this register set EN32kHz bit to ‘1’. This register monitors the status of time keeping registers such as date, month, year, minute, hour and second. #2 Initialize the RTC by setting the Status Register As temperature conversion is not required for displaying time and date, set the CONV=0. When all the bits in the control register are set to zero, the oscillator will run its clock until VBAT is applied.īut, it is not required for date and time. #1 Initialize the RTC by setting the Control Register void Initialize_RTC (void) Here are steps required to program the RTC. To get started with Real Time Clock it is required to know the working of DS3231.