// Enable asynchorous, complementary output, dual-slope PWM at 100kHz on 2 channels (0 to 1), at 50% duty cycle default // 4 PWM outputs on 2 complementary channels on pins D34, D35, D36 and D37 for ...

For the “common” PWM, if we write a value from 0 to 255 on a PWM pin, the Arduino library will drive the assigned pin to output a PWM signal whose on time is in proportion to the written value.

Here, a sine ware generator based on PWM of an Arduino is described. Almost no additional hardware is required (except for some resistances and capacitors to build a low pass filter). The tested ...

People who are using Arduino might be familiar that Arduino can produce PWM signals simply by using the analog write function. But this function is limited only to control the duty cycle of the PWM ...

We are going to program the UNO to provide a PWM signal of different duty ratio for each of buttons. So we have a tone generator at hand which generates a different tone with each button press.

The final PWM generator looks great. ... Posted in Arduino Hacks, Tool Hacks Tagged attiny, ... he is sending a 500 Hz PWM signal of between 0% to 100% duty cycle through a transistor.

This article presents a simple circuit to convert transistor-transistor logic (TTL) or pulse width modulation (PWM) signal to analogue signal using LM358 operational amplifier. The circuit can be used ...

Unfortunately, the AD9833 doesn’t have a way to control amplitude, something which is pretty important in a function generator. So [Faransky] uses a X9C104P 100KOhm 8-bit digital potentiometer ...

The output signal can also be obtained from signal images rather than the fundamental signal, allowing operation well above the 125 MHz clock frequency. Perhaps we’ll look at these applications in a ...

It can be useful for amplifier testing, experimentation in digital signal processing (DSP) and electronics labs. The author’s prototype is shown in Fig. 1. Fig. 1: Author’s prototype for Arduino based ...