hybridgroup.gobot/examples/raspi_adafruit2348_stepper.go

66 lines
1.2 KiB
Go

//go:build example
// +build example
//
// Do not build by default.
package main
import (
"fmt"
"log"
"time"
"gobot.io/x/gobot/v2"
"gobot.io/x/gobot/v2/drivers/i2c"
"gobot.io/x/gobot/v2/platforms/raspi"
)
func main() {
r := raspi.NewAdaptor()
// we use the default address 0x60 for DC/Stepper Motor HAT on top of the Pi
adaFruit := i2c.NewAdafruit2348Driver(r)
work := func() {
gobot.Every(5*time.Second, func() {
motor := 0 // 0-based
if err := adafruitStepperMotorRunner(adaFruit, motor); err != nil {
fmt.Println(err)
}
})
}
robot := gobot.NewRobot("adaFruitBot",
[]gobot.Connection{r},
[]gobot.Device{adaFruit},
work,
)
if err := robot.Start(); err != nil {
panic(err)
}
}
func adafruitStepperMotorRunner(a *i2c.Adafruit2348Driver, motor int) error {
log.Printf("Stepper Motor Run Loop...\n")
// set the speed state:
speed := 30 // rpm
style := i2c.Adafruit2348Double
steps := 20
if err := a.SetStepperMotorSpeed(motor, speed); err != nil {
return err
}
if err := a.Step(motor, steps, i2c.Adafruit2348Forward, style); err != nil {
return err
}
if err := a.Step(motor, steps, i2c.Adafruit2348Backward, style); err != nil {
return err
}
return nil
}