mirror of https://github.com/periph/devices
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
78 lines
1.7 KiB
Go
78 lines
1.7 KiB
Go
// Copyright 2018 The Periph Authors. All rights reserved.
|
|
// Use of this source code is governed under the Apache License, Version 2.0
|
|
// that can be found in the LICENSE file.
|
|
|
|
// Package mcp9808smoketest implements a smoke test for the mcp9808.
|
|
package mcp9808smoketest
|
|
|
|
import (
|
|
"errors"
|
|
"flag"
|
|
"fmt"
|
|
|
|
"periph.io/x/conn/v3/i2c/i2creg"
|
|
"github.com/GermanBionicSystems/devices/v3/mcp9808"
|
|
"periph.io/x/host/v3"
|
|
)
|
|
|
|
// SmokeTest is imported by periph-smoketest.
|
|
type SmokeTest struct {
|
|
}
|
|
|
|
// Name implements the SmokeTest interface.
|
|
func (s *SmokeTest) Name() string {
|
|
return "mcp9808"
|
|
}
|
|
|
|
// Description implements the SmokeTest interface.
|
|
func (s *SmokeTest) Description() string {
|
|
return "Tests MCP9808 over I²C"
|
|
}
|
|
|
|
// Run implements the SmokeTest interface.
|
|
func (s *SmokeTest) Run(f *flag.FlagSet, args []string) (err error) {
|
|
i2cID := f.String("i2c", "", "I²C bus to use")
|
|
i2cAddr := f.Int("ia", 0x18, "I²C bus address use: 0x18 to 0x1f")
|
|
if err = f.Parse(args); err != nil {
|
|
return err
|
|
}
|
|
if f.NArg() != 0 {
|
|
f.Usage()
|
|
return errors.New("unrecognized arguments")
|
|
}
|
|
|
|
fmt.Println("Starting MCP9808 Temperature Sensor\nctrl+c to exit")
|
|
if _, err = host.Init(); err != nil {
|
|
return err
|
|
}
|
|
|
|
// Open default i2c bus.
|
|
bus, err := i2creg.Open(*i2cID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer func() {
|
|
if err2 := bus.Close(); err == nil {
|
|
err = err2
|
|
}
|
|
}()
|
|
|
|
// Create a new temperature sensor a with maximum resolution.
|
|
config := mcp9808.Opts{
|
|
Addr: *i2cAddr,
|
|
Res: mcp9808.Maximum,
|
|
}
|
|
|
|
sensor, err := mcp9808.New(bus, &config)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
t, err := sensor.SenseTemp()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
fmt.Println(t)
|
|
|
|
return nil
|
|
}
|