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devices/ads1x15/example_test.go

61 lines
1.2 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 ads1x15_test
import (
"fmt"
"log"
"periph.io/x/conn/v3/i2c/i2creg"
"periph.io/x/conn/v3/physic"
"github.com/GermanBionicSystems/devices/v3/ads1x15"
"periph.io/x/host/v3"
)
func Example() {
// Make sure periph is initialized.
if _, err := host.Init(); err != nil {
log.Fatal(err)
}
// Open default I²C bus.
bus, err := i2creg.Open("")
if err != nil {
log.Fatalf("failed to open I²C: %v", err)
}
defer bus.Close()
// Create a new ADS1115 ADC.
adc, err := ads1x15.NewADS1115(bus, &ads1x15.DefaultOpts)
if err != nil {
log.Fatalln(err)
}
// Obtain an analog pin from the ADC.
pin, err := adc.PinForChannel(ads1x15.Channel0Minus3, 5*physic.Volt, 1*physic.Hertz, ads1x15.SaveEnergy)
if err != nil {
log.Fatalln(err)
}
defer pin.Halt()
// Read values from ADC.
fmt.Println("Single reading")
reading, err := pin.Read()
if err != nil {
log.Fatalln(err)
}
fmt.Println(reading)
// Read values continuously from ADC.
fmt.Println("Continuous reading")
c := pin.ReadContinuous()
for reading := range c {
fmt.Println(reading)
}
}