At89c2051 Projects Page

So dig out that 8051 programmer, fire up Keil or SDCC, and start building. The world of classic embedded computing is waiting for you. Have you built an interesting project with the AT89C2051? Share it in the comments or on electronics forums – the retro computing community is always eager to see new ideas!

void init_uart() SCON = 0x50; TMOD void send_string(char *s) while(*s) SBUF = *s++; while(!TI); TI = 0; at89c2051 projects

Timer/counter modes, frequency measurement techniques. Project 5: Simple Servo Motor Controller Difficulty: Intermediate Components: SG90 or MG995 servo, 5V supply, potentiometer (10k) So dig out that 8051 programmer, fire up

This project verifies your hardware and programmer work. Connect an LED with a 220Ω series resistor between P1.0 and GND. Code (C for SDCC/Keil): #include <at89x051.h> #include <delay.h> // simple delay function void delay_ms(unsigned int ms) unsigned int i, j; for(i = 0; i < ms; i++) for(j = 0; j < 1275; j++); Share it in the comments or on electronics

PWM emulation, analog input via comparator, real-time control. Project 6: Digital Clock with 4-Digit 7-Segment Display (Multiplexed) Difficulty: Advanced Components: 4-digit common cathode 7-segment display, 4x PNP transistors (or ULN2003), 8x resistors