67 lines
1.2 KiB
Go
67 lines
1.2 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 setup
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This examples requires you to daisy-chain 4 led matrices based on MAX7219.
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It will turn on one led at a time, from the first led at the first matrix to the last led of the last matrix.
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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_gpio_max7219.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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max := gpio.NewMAX7219Driver(firmataAdaptor, "11", "10", "9", 4)
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var digit byte = 1 // digit address goes from 0x01 (MAX7219Digit0) to 0x08 (MAX7219Digit8)
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var bits byte = 1
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var module uint
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count := 0
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work := func() {
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gobot.Every(100*time.Millisecond, func() {
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max.ClearAll()
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max.One(module, digit, bits)
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bits = bits << 1
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count++
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if count > 7 {
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count = 0
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digit++
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bits = 1
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if digit > 8 {
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digit = 1
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module++
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if module >= 4 {
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module = 0
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count = 0
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}
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}
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}
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})
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}
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robot := gobot.NewRobot("Max7219Bot",
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[]gobot.Connection{esp8266},
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[]gobot.Device{max},
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work,
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)
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robot.Start()
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}
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