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64 lines
1.3 KiB
Go
64 lines
1.3 KiB
Go
// Copyright 2018 The Periph Authors. All rights reserved.
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// Use of this source code is governed under the Apache License, Version 2.0
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// that can be found in the LICENSE file.
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package ht16k33_test
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import (
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"fmt"
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"log"
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"time"
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"periph.io/x/conn/i2c/i2creg"
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"periph.io/x/devices/ht16k33"
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"periph.io/x/host"
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)
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func Example() {
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// Make sure periph is initialized.
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if _, err := host.Init(); err != nil {
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log.Fatal(err)
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}
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bus, err := i2creg.Open("")
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if err != nil {
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log.Fatal(err)
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}
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defer bus.Close()
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display, err := ht16k33.NewAlphaNumericDisplay(bus, ht16k33.I2CAddr)
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if err != nil {
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log.Fatal(err)
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}
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defer display.Halt()
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if _, err := display.WriteString("ABCD"); err != nil {
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log.Fatal(err)
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}
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time.Sleep(1 * time.Second)
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if _, err := display.WriteString("GO"); err != nil {
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log.Fatal(err)
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}
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time.Sleep(1 * time.Second)
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if _, err := display.WriteString(fmt.Sprintf("%d", 1234)); err != nil {
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log.Fatal(err)
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}
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time.Sleep(1 * time.Second)
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if _, err := display.WriteString(fmt.Sprintf("%d", 60)); err != nil {
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log.Fatal(err)
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}
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time.Sleep(1 * time.Second)
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if _, err := display.WriteString(fmt.Sprintf("%5f", 23.99)); err != nil {
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log.Fatal(err)
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}
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time.Sleep(1 * time.Second)
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if _, err := display.WriteString(fmt.Sprintf("%5f", 1.45)); err != nil {
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log.Fatal(err)
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}
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time.Sleep(1 * time.Second)
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}
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