Tag: avr project

Atmel AVR circuits, Atmel AVR projects have been realized with microcontrollers of Atmel brand, amateur, professional applications, most of which are source codes.

Audio Spectrum Analyzer Circuit 100 LED 10 Ch Peak Hold

| 2022/02/27

I made a visually different version of the 10 channel 100 Led Spectrum Analyzer circuit that I used in the 2.1 sound system. The filter quality of the Led Spectrum Analyzer is around 6, and the middle frequencies are 31Hz, 62Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8kHz and 16kHz. J5 on the circuit changes…

Fan Ventilator Speed Control Wind Breeze

| 2022/02/27

The author said to work in the form of “Sea Breeze” for the fan, but I thought of saving electricity. The speed control circuit of the fan works intermittently in the form of a light breeze instead of working continuously. The MAC16N 16A 800V triac is controlled with the MOC3082 Triac Driver Optocoupler based on…

Effect Led Stars PCB

| 2021/09/30

ATtiny13 Led Stars There are source PCB drawings, Source and hex code files, Proteus simulation files. Added transistors to increase the number of LEDs. There are three printing options in the files. According to the scheme: instead of LEDs through a 1kOhm resistor to the base of the NPN BC547 transistor, then the LEDs are…

RGB Strip Led Vu Meter PWM DFT

| 2021/09/20

In Vu meter circuits, the LEDs give light according to the level of the sound signal. In this circuit, the LEDs give light according to certain frequencies (various calculations and PWM control). Led colorful music circuit, dance lights or disco lights project made with ATtiny13 microcontroller. It allows the LEDs to light up according to…

Peak Hold Led Bar Vu Meter Circuit

| 2021/09/19

The vu meter circuit, which can operate peak hold and normally, has a 2×20 LED peak indicator. Leds are controlled by Atmega8 microcontroller. The display range is -34 to +4 dB. The LEDs are controlled by multiplexing 4 LEDs in 10 steps, the multiplex frequency is about 100Hz. R1 … R4, their resistor (270-ohm) limits…

Musical Ring Box Led Heart Circuit RGB Effect

| 2021/01/12

I shared the ATmega88 microcontroller Led Heart circuit years ago. The LED Heart circuit that I have applied is controlled by the ATmega8 microcontroller. I made a lot of decoration on the PCB top floor and the PCB was made more useful for additional circuits. In the LED heart circuit, 22 ports of ATmega8 (ATmega8A-AU…

Voltage, Current, Temperature, Power and Load Resistance Measurement

| 2020/04/03

In addition to measuring voltage, current, power and temperature, the meter can also calculate the resistance of an attached load. However, this is not the most important difference – more importantly, this meter can also measure negative voltage and current. Recommendations: the meter can be used in a laboratory power supply or other power system.…

DMX Servo Driver Circuit

| 2020/04/02

The ATmega168 project is a continuation of devices with DMX interface designed for set designers, people involved in the setting of events, musicians, etc. Our controller is able to control four servos, with which you can, for example, control lighting or animated elements of the scenery. After the transmission decay, the servos may be in…

Lighting switch in the garage

| 2020/04/02

Driving a car into the garage after dark can be fatal if it has no lighting. The presented system automatically switches on the lighting, without leaving the vehicle. He will also remember to turn them off later. The switch system is designed for 230V AC supply. It works by detecting a beam of light (coming…

ATmega88 RGB lamp with DMX interface

| 2019/12/09

The design of a light source with a DMX interface, consisting of RGB LEDs panel, and thus able to illuminate objects with light of almost any color. Over 60 super-bright LEDs with up to 100,000 mcd luminosity were used in its construction. The device fits the KM-95 enclosure, which has a handle for mounting it…