Note: You can't really use PWM to vary the volume of a buzzer. I think it has something to do with the oscillator. For example, at 192 (75% duty cycle) there is NO sound, at all.

The reason for the 0/255 check is simply that using Fast PWM you can not go to zero, when you are say using an LED under PWM, having it not go to zero is very noticeable, it’s effectively a runt ...

PWM pins work the same way across all Arduino boards, so you don't need to go out of your way to buy a Mega if you already have a board supporting PWM. On the Uno, Nano, and Mini, the PWM pins are ...

Getting down to Arduino basics, PWM output is possible in an Arduino (Uno) on its digital I/O pins 3, 5, 6, 9, 10, and 11. Here the “analogWrite” function can be used to set the PWM duty cycle. To ...

Here is an Arduino based circuit with three independent pulse width modulated (PWM) channels to fulfil your requirements! Just follow the schematic diagram to complete the construction, and use any ...

Community collaboration is a great thing. Take the Arduino PWM library for shift registers. Some folks at the Arduino forum pitched in and helped [Elco] trim off a bunch of clock cycles by using th… ...

Arduino enthusiasts or those looking to build a binary clock may be interested in a new shield created by developer Marcin Saj. ... The buzzer is connected to the Arduino pwm pin “11 ...

Arduino Gemma from Adafruit is also based on the ATtiny85, and PB0 and PB1 appear to be accessible. This board has a USB connector for programming and a voltage regulator. This board, which I am ...

Arduino can deliver high-speed PWM For a long time I have admired the pulse-with modulators designed into Atmel (now Microchip) AVR microcontrollers . The company was early into adding phase-locked ...