Reading temperature and humidity data from DHT11 and UART Transmission in low-level C on Arduino ATmega2560

This project implements a direct interface between an ATmega2560 microcontroller (Arduino Mega) and a DHT11 temperature and humidity sensor using bare-metal C, without relying on external libraries. The measured data is then transmitted via the UART protocol to a serial terminal or another device. The goal is to understand the 1-Wire communication protocol specific to the DHT11, implement it through direct register manipulation, and configure UART to send the data in ASCII format.