make usb avr programmer circuit

The core of this construction is 16-Bit Stereo Digital-To-Analog Converter with USB interface PCM2702. PCM2702 needs only a few additional parts to work. The schematic is not complex. The sound card can be powered directly from the USB port (jumper...

Hum Circuit

The kit employs an off-the-shelf microcontroller based on the AtMega328P-PU Arduino, along with a simplified version designed for ease of replication and modification by collaborators and students. This initiative aims to enable the fabrication of simplified microcontrollers for DIY synthetic...

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...

interfacing of led wiht avr atmega16

The circuit interfaces an LED with an AVR microcontroller (ATMega16). The components used include one ATMega16 microcontroller, a 10K resistor, a 16uF/25V capacitor, a push button switch, and a green LED bar instead of eight individual LEDs. The power supply...

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...

AVR Projects

This project is a combined temperature and humidity meter. It is an enhancement of a previous PIC-based humidity meter and PIC and AVR thermometers. The design utilizes an ATmega164 microcontroller, which offers ample input/output ports and memory. The humidity sensor...

Make a USB color changing light

This color changer mixes light from high-power LEDs to create over 16 million colors. A smooth auto-fader cycles the colors, or it can be connected to a USB port for computer control. The device utilizes a well-known color model employed...

AVR Microcontrolled PLL FM Transmitter

An LMX1601 Phase locked loop, a discreet FET VCO, and an AVR microcontroller combine to make a stable, easy to use monophonic FM transmitter that includes an audio activated switch that turns the transmitter on only when it is being...

AVR ISP Circuit Schematics

It is crucial to design the PCB layout correctly to enable seamless In-System Programming (ISP) of AVR microcontrollers. This guide addresses common issues encountered and provides typical AVR ISP circuit schematics. It focuses on Serial Programming, known as ISP, and...