Báo cáo buổi 11 I2C - Nhóm 5 (CT5)
Summary
TLDRThe presentation discusses the configuration of I2C communication with the DS1307 RTC module. It covers initializing the DS1307, reading and writing time data, and displaying it on an LCD in a 4-bit mode. The code includes functions to convert BCD to binary and vice versa, control the RTC, and display time and date. The presentation also features a demonstration of real-time clock functionality, showing the time update every second on the LCD.
Takeaways
- 🕒 Configured I2C communication to interface with DS1307.
- 📅 Initialized time and date variables for RTC.
- 🔄 Implemented BCD to binary conversion functions.
- 💾 Programmed data read and write functions for the RTC.
- 📺 Displayed time on a 2-line LCD.
- 🛠 Demonstrated real-time clock update every second.
Timeline
- 00:00:00 - 00:04:42
In this presentation, the speaker introduces the configuration of pins for the I2C interface in their project, specifically for the group report on connecting to the DS1307 RTC chip. They detail the necessary variables for handling time data (seconds, minutes, hours, day, month) and explain the conversion processes between BCD and binary formats. The speaker elaborates on the routines used for reading and writing data to the RTC via I2C, including specific commands and delays essential for proper functionality. They also describe the LCD display setup, including commands to operate the LCD in 4-bit mode and instructions for displaying the date and time. The presentation concludes with a live demonstration of the system reading the time from the DS1307 every second to update the display accordingly.
Mind Map
Video Q&A
What is the purpose of the DS1307 module?
The DS1307 module is used to keep track of time and date using I2C communication.
What programming language is being used in the report?
The programming language used appears to be C (or a similar language for microcontroller programming).
What does I2C stand for?
I2C stands for Inter-Integrated Circuit, a communication protocol commonly used in microcontrollers.
What is the significance of the BCD format?
BCD (Binary-Coded Decimal) is used to represent decimal numbers in a binary format.
How is the DS1307 initialized in the code?
The DS1307 is initialized by setting its address and configuring the necessary variables for time and date.
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- I2C
- DS1307
- RTC
- LCD
- BCF
- Microcontroller
- Programming
- Time Keeping
- Interrupts
- Data Read
- Data Write