4 Piece AT89C2051 microcontroller project has been realized with matrix display isis proteus simulation and asm files available in hex code
Atmel AT89C2051
• Compatible with MCS®-51Products
• 2K Bytes of Reprogrammable Flash Memory
– Endurance: 10,000 Write/Erase Cycles
• 2.7V to 6V Operating Range
• Fully Static Operation: 0 Hz to 24 MHz
• Two-level Program Memory Lock
• 128 x 8-bit Internal RAM
• 15 Programmable I/O Lines
• Two 16-bit Timer/Counters
• Six Interrupt Sources
• Programmable Serial UART Channel
• Direct LED Drive Outputs
• On-chip Analog Comparator
• Low-power Idle and Power-down Modes
• Green (Pb/Halide-free) Packaging Option
AT89C2051 Dot Matrix Display Applications asm, hex and protues isis simulation files
AT89C2051 Dot Matrix Display Applications ZIP File Password: 320volt.com
PIC16F84 Multi Siren Sounds Circuit
16 different alarm sound circuit, after running the simulation of the fourth line of dip switches in different positions can run by selecting the 4 × 4 = 16 different sound Remember to press the reset button at the end of each selection. Original ASM file is available.
Example PICmicro Sounds: Police, telephone, IEP, buzzer,laser, etc.
Siren Sounds Circuit Schematic