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Arduino Morse Code Practice Oscillator - Codrey Electronics
https://www.codrey.com/arduino-projects/arduino-morse-code-practice-oscillator/
When you run it you should hear tones when you press the Morse Key. Copy and paste the given code on the right into your Arduino. The code start by declaring variables for the input and output pins. The ‘val’ will be where it stores the state of the key input. The ‘keyTone’ is the frequency of the tone you will hear.
Arduino voltage controlled oscillator (VCO)
https://mechatrofice.com/arduino/voltage-controlled-oscillator-vco
Arduino Arduino voltage controlled oscillator (VCO) A voltage controlled oscillator or VCO is an oscillator circuit which generates a signal with a frequency value varies with the instantaneous input voltage. In this VCO, the Analogread …
Arduino – OSCILLATOR
https://www.oscillator.se/arduino/
The OscDigiSeq is a 4+1 channel analog CV/Gate sequencer based on an Arduino Uno R3. It has 4 CV/Gate channels that operate from 0 to +5V to drive 4 analog synthesizers. It also has a gate (clock) channel for synchronizing with an analog drum machine. Every channel (voice) has 2 patterns each consisting of 16 notes ranging from 0-60 (5 octaves).
Help oscillator BF - Audio - Arduino Forum
https://forum.arduino.cc/t/help-oscillator-bf/608735
The Arduino's [u]tone () [/u] function can do it (again with the resistors & capacitor). Or, you may be able to use your sound card with [u]Audacity [/u] or an audio generator application. But soundcards are designed for audio, so 30kHz may be a problem, especially a 30kHz square wave.
Arduino Audio Output : 10 Steps (with Pictures ...
https://www.instructables.com/Arduino-Audio-Output/
Before sending a signal to speakers, you want to make sure it is oscillating around 0V (typical of audio signals). So far, the Arduino DAC output we've been dealing with is oscillating around 2.5V. To fix this we can use a big capacitor. As indicated in the schematic, I used a 220uF capacitor to DC offset my signal so that it oscillates around 0V.
DMOscillator - Arduino Reference
https://www.arduino.cc/reference/en/libraries/dmoscillator/
DMOscillator - Arduino Reference Reference > Libraries > Dmoscillator DMOscillator Timing A library that makes easy on/off control on a pin at fixed or dynamic rate. Set the pin, the wanted mode (oscillation count, oscillation duration, frequency or period in us) and just call update () in the main loop. Author: Nicolas Simonnet
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