lcd interfacing with avr primer circuit

avr How to redesign a circuit to use a current sinking IC rather than a current sourcing IC

A serial servo controller is being developed to enhance knowledge of electronics and assembly language as part of a hexapod robot project. Initially, the ATTiny2313 microcontroller was utilized; however, it became evident that additional I/O channels were necessary. Consequently, 3-8...

LCD Module in 4-bit Mode

In many projects, alphanumeric LCDs are utilized, which are internally driven by Hitachi's industry-standard HD44780 controller. These displays can be driven... Alphanumeric LCDs that utilize the HD44780 controller are widely used in various electronic projects due to their reliability and ease...

CodeLock AVR

CodeLock AVR electronic combination lock is realised with Atmel AVR microcontroller AT90S2313 or ATtiny2313. Program in hex code is 2 kB long. User code is consisted of 1 to 4 digits. If you buy the chip than user code is...

AVR microcontroller based PWM fan controllers

This document serves as a continuation of the previous work on PWM controllers utilizing 555 timers. The new design incorporates microcontrollers and MOSFETs in place of the 555 integrated circuits and transistors. Two versions have been developed: one equipped with...

Microcontroller Programming

This page is a work in progress. The board and source files will soon be available for building and programming to play custom songs. After assembling the board, communication with the programmer was verified, and both the LED and switch...

Microcontroller Programming 2

For this week's assignment, a chip design was provided, and the task was to incorporate a button and an LED (light-emitting diode). The objective was to fabricate the chip and program it to interact with the light and button. Given...

Some Voltage Regulator Ciruits for Microcontroller based Projects

A regulated and noise-free power supply voltage is essential for microcontrollers and other components such as amplifiers, filters, and GPS devices. Voltage surges in the supply voltage can permanently damage embedded systems. A voltage regulator must maintain the output voltage...

Microcontroller Based Telephone Remote Control Circuit

This device enables remote control of various appliances (up to eight with suitable add-on expansion boards) such as lights, water heaters, air conditioning, plant watering systems, alarms, etc., via a relay. It allows users to perform actions such as watering...

Blinking an LED AVR Tutorial

Blinking an LED is the introductory project for programming microcontrollers. It serves as an effective method to navigate the entire development process and verify the functionality of all tools. This chapter involves connecting a light-emitting diode (LED) to an AVR...