Скачать или смотреть The 8051 Microcontroller & Embedded Systems

🚀 Learn how to bring your 8051 projects to life with LCD displays! In this hands-on livestream, we’ll explore how to connect and control a 16x2 LCD using the 8051 microcontroller. From sending simple text to understanding control commands, this session will guide you step-by-step through it all.

💡 What you’ll learn:
✅ Basics of 16x2 alphanumeric LCDs
✅ LCD pinout and connection with 8051
✅ Command vs data instructions
✅ Timing requirements and delays
✅ Writing custom messages to the LCD
✅ Assembly/C live coding demo
✅ Common issues and troubleshooting tips

🔧 Requirements (Optional):

8051 (AT89C51) Development Board

16x2 LCD module

Keil uVision or MPLAB + Proteus/hardware setup

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🔔 Buzzer Control with 8051 – Live Session Description:
🚨 Make some noise with the 8051! Join this live session to learn how to interface and control buzzers using the AT89C51 microcontroller. We'll cover both active and passive buzzers, and show how to generate sound alerts in response to system inputs.

💡 What you’ll learn:
✅ Types of buzzers: active vs passive
✅ How to connect buzzers safely to microcontroller ports
✅ Generating tones using delays and toggling
✅ Using buzzers for system feedback (e.g., button press, alerts)
✅ Live demo: Beep on button press
✅ Power and protection tips

🔧 Requirements (Optional):

AT89C51 or compatible 8051 board

Active/passive buzzer module

Keil uVision + Proteus or hardware setup

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asm program:
ORG 0H
MOV A,#38H ;init. LCD 2 lines,5x7 matrix
ACALL COMNWRT ;call command subroutine
ACALL DELAY ;give LCD some time
MOV A,#0EH ;display on, cursor on
ACALL COMNWRT ;call command subroutine
ACALL DELAY ;give LCD some time
MOV A,#01 ;clear LCD
ACALL COMNWRT ;call command subroutine
ACALL DELAY ;give LCD some time
MOV A,#06H ;shift cursor right
ACALL COMNWRT ;call command subroutine
ACALL DELAY ;give LCD some time
MOV A,#84H ;cursor at line 1,pos. 4
ACALL COMNWRT ;call command subroutine
ACALL DELAY ;give LCD some time
MOV A,#'N' ;display letter N
ACALL DATAWRT ;call display subroutine
ACALL DELAY ;give LCD some time
MOV A,#'O' ;display letter O
ACALL DATAWRT ;call display subroutine
AGAIN: SJMP AGAIN ;stay here
COMNWRT: ;send command to LCD
MOV P1,A ;copy reg A to port1
CLR P2.2 ;RS=0 for command
CLR P2.1 ;R/W=0 for write
SETB P2.0 ;E=1 for high pulse
ACALL DELAY ;give LCD some time
CLR P2.0 ;E=0 for H-to-L pulse
RET
DATAWRT: ;write data to LCD
MOV P1,A ;copy reg A to port1
SETB P2.2 ;RS=1 for data
CLR P2.1 ;R/W=0 for write
SETB P2.0 ;E=1 for high pulse
ACALL DELAY ;give LCD some time
CLR P2.0 ;E=0 for H-to-L pulse
RET
DELAY: MOV R3,#50 ;50 or higher for fast CPUs
HERE2: MOV R4,#255 ;R4=255
HERE: DJNZ R4,HERE ;stay until R4 becomes 0
DJNZ R3,HERE2
RET
END