I used AI to generate parts of this code, I am wondering if someone that has access to an oscilloscope and 4 potentiometers would be able to set it up and test it out for me. I am going to try it on my Nano later on, but i have 0 faith in it. Any adjustments or recommendations on the code are greatly appreciated.
int pwmPin = A6; // Connect the potentiometer for PWM to analog pin A6
int freqPin = A7; // Connect the potentiometer for frequency to analog pin A7
int multPin = A5; // Connect the potentiometer for multiplier to analog pin A5
int wavePin = 6; // Connect the output for the function generator to digital pin 6
int waveTypePin = A4; // Connect the potentiometer for wave type to analog pin A4
void setup() {
pinMode(wavePin, OUTPUT); // Set the function generator output pin as an output
}
void loop() {
int pwmValue = analogRead(pwmPin); // Read the PWM potentiometer value
int freqValue = analogRead(freqPin); // Read the frequency potentiometer value
int multValue = analogRead(multPin); // Read the multiplier potentiometer value
int waveTypeValue = analogRead(waveTypePin); // Read the wave type potentiometer value
int dutyCycle = map(pwmValue, 0, 1023, 0, 255); // Map the PWM value to a duty cycle (0-255)
int exponent = map(freqValue, 0, 1023, 1, 7); // Map the frequency value to an exponent range (0-7 for 10^0 to 10^7), allows up to 1 MHz
int multiplier = map(multValue, 0, 1023, 1, 10); // Map the multiplier value to a range (1-10) allows Hz steps from 1 to 10 (can get up to 10MHz
int waveType = map(waveTypeValue, 0, 1023, 1, 3); // Map the wave type value to a range (1-3 for sine, sawtooth, square)
int frequency = pow(10, exponent) * multiplier; // Calculate the frequency based on the exponent and multiplier
int period = 1000000 / frequency; // Calculate the period in microseconds
int highTime = (dutyCycle / 255.0) * period; // Calculate the high time based on duty cycle
int lowTime = period - highTime; // Calculate the low time based on duty cycle
if (waveType == 1) {
// Generate a sine wave
for (int i = 0; i < 360; i++) {
int sinValue = 127.5 + 127.5 * sin(i * 0.0174533); // Calculate the sine value for each angle (in degrees)
analogWrite(pwmPin, sinValue); // Output the sine value as PWM
delayMicroseconds(1000000 / frequency / 360); // Adjust the delay based on the calculated frequency
// Add code to generate sine wave
} } else if (waveType == 2) {
// Generate a sawtooth wave
for (int i = 0; i < 255; i++) {
int sawtoothValue = map(i, 0, 255, 0, 255); // Calculate the sawtooth value for each step
analogWrite(pwmPin, sawtoothValue); // Output the sawtooth value as PWM
delayMicroseconds(1000000 / frequency / 255); // Adjust the delay based on the calculated frequency
}
// Add code to generate sawtooth wave
} else if (waveType == 3) {
// Generate a square wave
int freqValue = analogRead(freqPin); // Read the frequency potentiometer value
int frequency = map(freqValue, 0, 1023, 1, 1000); // Map the frequency value to a desired range (1-1000 Hz)
int period = 1000000 / frequency; // Calculate period in microseconds
int dutyCycle = 50; // Set initial duty cycle to 50%
// Adjust the duty cycle based on the frequency to maintain the square wave
if (frequency > 0) {
dutyCycle = 500000 / frequency; // Calculate the duty cycle based on the frequency
}
// Add code to generate square wave
}
}