// 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 ...

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 ...

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.

Getting a PWM signal from DUE is easy; Arduino IDE provides useful features which eases the programmer’s difficulty. If we go for bare chip programming, we need setting up an ATMEGA controller for PWM ...

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 ...

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 ...