spi eeprom interfacing with avr primer circuit

LCDs are available in various configurations, with the 16x2 matrix display being the most popular. This article demonstrates the interfacing of an ATmega16 microcontroller with an LCD by displaying a simple character. In this project, the LCD operates in 8-bit...

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...

simple usb avr isp compatible programmer

In the past, it was straightforward to utilize the parallel port of a standard PC to program various types of AVR microcontrollers. Currently, one must purchase a programmer that connects to the PC via USB, which increases the complexity of...

ATMEGA16 8-bit AVR Microcontroller with 16K Bytes In-System Programmable Flash

This simple AVR programmer is capable of transferring hex programs to most ATMEL AVR microcontrollers. It is more reliable than many other simple AVR programmers available and can be constructed in a very short amount of time. This programmer supports...

avr oscilloscope nokia lcd

This is a straightforward X-Y oscilloscope design utilizing an ATmega324P microcontroller and two KAD0820 analog-to-digital converters (similar to National Semiconductor's ADC0820). The initial version of this oscilloscope was based on an AT90S4414, necessitating the use of external ADCs. Various rose...

Programming the AVR Microcontroller with GCC

It is a single integrated circuit that includes EEPROM, RAM, an analog-to-digital converter, numerous digital input and output lines, timers, and a UART for RS-232 communication, among other features. A complete programming environment is available for Linux, allowing programming of...

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...

AccelR8

The schematic shows that the AccelR8 only uses 3 ICs. An AVR 8515 microcontroller does the calculation work and controls the other circuits. A MAX603 controls voltage and power-on/power-off. And the chip that makes it all possible, the ADXL202 from...

AVR Frequency Meter

This is a design for a frequency meter based on AVR microcontrollers. Maximum input frequency is specified to be 30 MHz in the multi-chip configuration, and in single-chip configuration, there are both 5 MHz and 10 MHz versions operating with...