80 lines
1.7 KiB
Go
80 lines
1.7 KiB
Go
// +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_tm1638.go /dev/ttyACM0
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*/
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package main
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import (
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"os"
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"time"
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"gobot.io/x/gobot"
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"gobot.io/x/gobot/drivers/gpio"
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"gobot.io/x/gobot/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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// Even thought the modules are connected among them, they are independent (not chained)
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modules := make([]*gpio.TM1638Driver, 4)
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modules[0] = gpio.NewTM1638Driver(esp8266, "9", "8", "7")
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modules[1] = gpio.NewTM1638Driver(esp8266, "9", "8", "6")
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modules[2] = gpio.NewTM1638Driver(esp8266, "9", "8", "5")
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modules[3] = gpio.NewTM1638Driver(esp8266, "9", "8", "4")
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var ledInt byte
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var color byte
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var offset int
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// Repeat and concat strings until long enough that with scroll it still shows text
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const showText = " HELLO WORLD - gobot.io - TM1638 "
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text := showText
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for len(text)-len(showText) < len(modules)*8 {
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text += showText
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}
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work := func() {
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gobot.Every(400*time.Millisecond, func() {
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// Enable and change the color of the LEDs
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modules[0].SetLED(color, ledInt)
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modules[1].SetLED(color, ledInt)
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modules[2].SetLED(color, ledInt)
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modules[3].SetLED(color, ledInt)
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ledInt++
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if ledInt > 7 {
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ledInt = 0
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color++
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if color > 2 {
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color = 0
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}
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}
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// Scroll the text
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for i := 0; i < 4; i++ {
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modules[i].SetDisplayText(text[offset+8*i : offset+8*i+8])
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}
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offset++
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if offset >= len(showText) {
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offset = 0
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}
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})
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}
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robot := gobot.NewRobot("tm1638Bot",
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[]gobot.Connection{firmataAdaptor},
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[]gobot.Device{modules[0], modules[1], modules[2], modules[3]},
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work,
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)
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robot.Start()
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}
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