55 lines
939 B
Go
55 lines
939 B
Go
//go:build example
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// +build example
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//
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// Do not build by default.
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/*
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How to run
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Pass serial port to use as the first param:
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go run examples/firmata_led_brightness.go /dev/ttyACM0
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*/
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package main
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import (
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"fmt"
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"os"
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"time"
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"gobot.io/x/gobot/v2"
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"gobot.io/x/gobot/v2/drivers/gpio"
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"gobot.io/x/gobot/v2/platforms/firmata"
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)
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func main() {
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firmataAdaptor := firmata.NewAdaptor(os.Args[1])
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led := gpio.NewLedDriver(firmataAdaptor, "3")
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work := func() {
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brightness := uint8(0)
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fadeAmount := uint8(15)
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gobot.Every(100*time.Millisecond, func() {
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if err := led.Brightness(brightness); err != nil {
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fmt.Println(err)
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}
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brightness = brightness + fadeAmount
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if brightness == 0 || brightness == 255 {
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fadeAmount = -fadeAmount
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}
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})
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}
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robot := gobot.NewRobot("pwmBot",
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[]gobot.Connection{firmataAdaptor},
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[]gobot.Device{led},
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work,
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)
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if err := robot.Start(); err != nil {
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panic(err)
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}
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}
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