Analog

These functions provide access to analog pins.

Analog Write

This feature uses software-generated PWM to control the "Analog" level of a pin. It has a fixed frequency of 50Hz.

Analog.Write( pin, dutyCycle)
pin: Pin number
dutyCycle: 0 to 100

This example code will swing the analog output value up and down in a loop.

while True:
	for i in range(0, 100, 10):
		duelink.Analog.Write('L', i)
		time.sleep(0.1)

	for i in range(90, -1, -10):
		duelink.Analog.Write('L', i)
		time.sleep(0.1)

while (true) {
	for (let i = 0; i < 100; i+=10) {
		await duelink.Analog.Write('L', i);
		await Util.sleep(100)
	}

	for (let i = 90; i > -1; i-=10) {
		await duelink.Analog.Write('L', i);
		await Util.sleep(100)
	}
}

while (true) {
	for (var i = 0; i < 100; i+=10) {
		duelink.Analog.Write('L', i);
		Thread.Sleep(100);
	}

	for (var i = 90; i > -1; i-=10) {
		duelink.Analog.Write('L', i);
		Thread.Sleep(100);
	}
}

This feature works on all pins.

Analog Read

Use this function to read the analog level on a specific pin.

Analog.Read(pin)
pin: Pin number
Returns: The analog value (0-100) of the pin

This is an example code to read the analog level on pin 0 and print out to the console 10 times per second.

while True:
	x = duelink.Analog.Read(0)
	print(x)
	time.sleep(0.1)

while (true) {
	let x = await duelink.Analog.Read(0)
	console.log(x)
	await Util.sleep(100)
}

while (true) {
	var x = duelink.Analog.Read(0);
	Console.WriteLine(x);
	Thread.Sleep(100);
}

Some pins may not support analog read. Check the hardware page for a list of supported pins.

Table of Contents

Analog

Analog Write

Analog Read