Using an accelerometer with an AVR microcontroller circuit

To program some AVR microcontroller unit (MCU) you will need an AVR programmer. The better way to do that is to buy some development kit like STK-500. This kit has the advantage to give you serial port, LCD connector, SRAM...

Beginners Guide AVR Programming

The project involves assembling a circuit that can be completed in 30 minutes. The required parts include: 1 circuit board, 1 Atmel AVR Atmega16 microcontroller, and 8 resistors with a value of 330 ohms each. The schematic for this project outlines...

Fireflies based on tiny AVR

When first discovering this article, it was noted that it is a great project utilizing only a few components. Microcontroller projects based on LEDs are of particular interest. This project is very simple and worth trying. It is inspired by...

Drive relay with AVR microcontroller

To drive a relay, a current greater than 20mA is required, which cannot be supplied by a single microcontroller pin. Therefore, a relay cannot be connected directly to a microcontroller pin. Instead, a simple amplifier circuit consisting of a single...

AVR Bootloader and Programmer

Atmel's application note AVR109 describes a bootloader that utilizes the UART for communication of FLASH programming instructions. It also provides sample C code that facilitates the programming of FLASH, EEPROM, and lock bits. It is important to note that the...

Field disturbance sensor-alarm

The change in ambient light triggers the alarm by changing the resistance of LDR1 and LDR2. The circuit utilizes two light-dependent resistors (LDR1 and LDR2) to detect variations in ambient light levels. LDRs are passive components that exhibit a change in...

How to display text on 16x2 LCD using AVR microcontroller (ATmega16)

This article continues from the previous one regarding the single character LCD display using an AVR microcontroller. The prior article demonstrated how to display a single letter on an LCD. This article advances the learning process by explaining how to...

AVR ISP ScoketBoard

Most Atmel AVR microcontrollers can be programmed via their built-in serial programming interfaces (SPI). This method is ideal for in-situ programming, which may be used in manufacturing, firmware development, or field upgrades. In this scenario, the microcontroller remains in its...

spi schematics

Schematic for the SPI Supplies Faraday Cup. This document provides a detailed examination of the diagrams for the SPI Supplies stand-alone Faraday Cup, which is utilized for calibrating beam currents in wavelength dispersive electron microprobes, as well as interfacing with...