Do you have any other questions?
Interface a DS18B20 digital temperature sensor (1-Wire protocol) and display the temperature on a 7-segment display or LCD. Add a buzzer that triggers above a set threshold. The AT89C2051 has two internal comparators – you can even use them for analog temperature sensing with an NTC thermistor. at89c2051 projects
This project verifies your hardware and programmer work. Do you have any other questions
Take your project off the breadboard and into your home by using Infrared (IR) communication. at89c2051 projects
It uses interrupts, precise timing, table lookups, and analog output. You will hear the 8-bit soul of the machine.