nicebadge/tutorial/basics/step9/main.go

package main

import (
	"machine"
	"time"

	"tinygo.org/x/drivers/encoders"
)

const deadzone = 5000

func main() {
	btnA := machine.P1_06
	btnB := machine.P1_04
	btnC := machine.P0_22 // rotary encoder push button
	btnA.Configure(machine.PinConfig{Mode: machine.PinInputPullup})
	btnB.Configure(machine.PinConfig{Mode: machine.PinInputPullup})
	btnC.Configure(machine.PinConfig{Mode: machine.PinInputPullup})

	enc := encoders.NewQuadratureViaInterrupt(machine.P1_00, machine.P0_24)
	enc.Configure(encoders.QuadratureConfig{Precision: 4})

	machine.InitADC()
	ax := machine.ADC{Pin: machine.P0_02}
	ay := machine.ADC{Pin: machine.P0_29}
	ax.Configure(machine.ADCConfig{})
	ay.Configure(machine.ADCConfig{})

	prevA := true
	prevB := true
	prevC := true
	prevPos := enc.Position()

	for {
		a := btnA.Get()
		b := btnB.Get()
		c := btnC.Get()
		if !a && prevA {
			println("button A pressed")
		}
		if !b && prevB {
			println("button B pressed")
		}
		if !c && prevC {
			println("encoder button pressed")
		}
		prevA = a
		prevB = b
		prevC = c

		pos := enc.Position()
		if pos != prevPos {
			println("encoder:", pos)
			prevPos = pos
		}

		rawX := int(ax.Get()) - 32767
		rawY := int(ay.Get()) - 32767
		if rawX > deadzone || rawX < -deadzone || rawY > deadzone || rawY < -deadzone {
			println("joystick:", "x=", rawX, "y=", rawY)
		}

		time.Sleep(50 * time.Millisecond)
	}
}