avr Driving piezo buzzer from MCU pin
#AVR
#piezo buzzer
#MCU
#PWM
#sound generation
#embedded systems
#digital output
#microcontroller programming
#signal control
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A DC motor PWM speed control circuit
Most governors utilize pulse width modulation (PWM) and pulse position modulation (PPM) in their circuits. The 555 timer is commonly used in these applications. The pulse width is typically fixed at 0.5 milliseconds, which is essential for the functioning of...
digital inputs interfacing with avr primer
A switch is an electrical component that can break an electrical circuit, interrupting the current or diverting it from one conductor to another. A switch may be directly manipulated by a human as a control signal to a system or...
16x2 Alphanumeric LCD Interfacing :: AVR Tutorials
The RW line is the "Read/Write" control line. When RW is low (0), the information on the data bus is being written to the LCD. When RW is high (1), the program is effectively querying (or reading) the LCD. Only...
Simple Serial AVR Programmer
This simple AVR programmer is capable of transferring hex programs to most Atmel AVR microcontrollers. It is more reliable than many other basic AVR programmers available and can be assembled in a short amount of time. This programmer supports a...
PWM Motor Speed Controller / DC Light Dimmer
A pulse width modulator (PWM) is a device that can be utilized as an efficient light dimmer or DC motor speed controller. The circuit described here is intended for general-purpose applications, capable of controlling DC devices that draw up to...
AVR Microcontrollers in Linux
A microcontroller is a single-chip computer that includes internal RAM, ROM, timers, counters, interrupt circuitry, I/O ports, analog comparators, serial USARTs, analog-to-digital converters, watchdog timers, and a RISC architecture. Unlike microprocessors, which require additional components such as RAM and ROM...
PWM Motor Driver with MOSFET H-Bridge and AVR ATmega8
This project involves controlling a small DC motor, sourced from an old personal cassette player, using the ATmega8 microcontroller. The ATmega8 features three PWM channels, of which two are utilized in this application. The PWM signals are sent to a...
AVR Color Clock
This page describes a color clock that displays the time using two RGB LEDs, one for hours and one for minutes. It uses standard color coding for components, with two additional colors to accommodate the twelve distinct color representations needed....
microprocessor based frequency counter
To ensure the circuit functions properly, it is crucial to correctly configure the fuse bits within the AVR microcontroller. These fuse bits can be set using the programmer employed to upload the software. For those interested in the technical background,...