Morse decoder in avr atmega84/6/2023 It can be used to develop low power music systems used in vehicles. Low Power Audio Amplifier using 555 Timer: This is a simple low power audio amplification circuit designed using 555 timer. RFID based Attendance System: This simple RFID based attendance system is designed using ATmega8 Microcontroller and is mainly used in educational institutions, industries, etc. It produces different tones or sounds depending on the frequency range. Toy Organ using 555 Timer IC: This is the circuit diagram of simple Toy Piano using 555 Timer IC. It consists of a 555 timer to produce the clock pulses and two counter ICs to carry out the counting operation. These are mainly used in environmental applications.ĭigital Stopwatch Circuit: This is a simple circuit that displays count from 0 to 59, representing a 60 second time interval. 150W Power Amplifier Circuit: Here we designed a power amplifier circuit using push pull class AB configuration to derive a power of 150W to drive a load of 8 Ohms (speaker).ħ Segment LED Display Decoder: This is the circuit diagram of display decoder which is used to convert a BCD or binary code into a 7 segment code used to operate a 7 segment LED display.ĭigital Temperature Sensor: The main principle of this circuit is to display the digital temperature value.
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