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82 lines
1.6 KiB
Go
82 lines
1.6 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 mcp9808_test
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import (
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"fmt"
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"log"
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"periph.io/x/conn/i2c/i2creg"
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"periph.io/x/conn/physic"
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"periph.io/x/devices/mcp9808"
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"periph.io/x/host"
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)
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func ExampleDev_SenseTemp() {
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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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// Open default I²C bus.
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bus, err := i2creg.Open("")
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if err != nil {
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log.Fatalf("failed to open I²C: %v", err)
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}
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defer bus.Close()
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// Create a new temperature sensor.
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sensor, err := mcp9808.New(bus, &mcp9808.DefaultOpts)
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if err != nil {
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log.Fatalln(err)
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}
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// Read values from sensor.
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measurement, err := sensor.SenseTemp()
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if err != nil {
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log.Fatalln(err)
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}
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fmt.Println(measurement)
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}
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func ExampleDev_SenseWithAlerts() {
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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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// Open default I²C bus.
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bus, err := i2creg.Open("")
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if err != nil {
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log.Fatalf("failed to open I²C: %v", err)
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}
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defer bus.Close()
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// Create a new temperature sensor.
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sensor, err := mcp9808.New(bus, &mcp9808.DefaultOpts)
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if err != nil {
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log.Fatalln(err)
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}
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lower := physic.ZeroCelsius
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upper := physic.ZeroCelsius + 25*physic.Celsius
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critical := physic.ZeroCelsius + 32*physic.Celsius
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// Read values from sensor.
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temperature, alerts, err := sensor.SenseWithAlerts(lower, upper, critical)
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if err != nil {
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log.Fatalln(err)
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}
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for _, alert := range alerts {
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fmt.Println(alert)
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}
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fmt.Println(temperature)
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}
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