gobot.io/x/gobot@v1.16.0/examples/raspi_ina3221.go (about)

     1  // +build example
     2  //
     3  // Do not build by default.
     4  
     5  package main
     6  
     7  import (
     8  	"fmt"
     9  	"time"
    10  
    11  	"gobot.io/x/gobot"
    12  	"gobot.io/x/gobot/drivers/i2c"
    13  	"gobot.io/x/gobot/platforms/raspi"
    14  )
    15  
    16  func main() {
    17  
    18  	r := raspi.NewAdaptor()
    19  	ina := i2c.NewINA3221Driver(r)
    20  
    21  	work := func() {
    22  
    23  		gobot.Every(5*time.Second, func() {
    24  			for _, ch := range []i2c.INA3221Channel{i2c.INA3221Channel1, i2c.INA3221Channel2, i2c.INA3221Channel3} {
    25  				val, err := ina.GetBusVoltage(ch)
    26  				if err != nil {
    27  					fmt.Printf("INA3221Channel %v Bus Voltage error: %v\n", ch, err)
    28  				}
    29  				fmt.Printf("INA3221Channel %v Bus Voltage: %fV\n", ch, val)
    30  
    31  				val, err = ina.GetShuntVoltage(ch)
    32  				if err != nil {
    33  					fmt.Printf("INA3221Channel %v Shunt Voltage error: %v\n", ch, err)
    34  				}
    35  				fmt.Printf("INA3221Channel %v Shunt Voltage: %fV\n", ch, val)
    36  
    37  				val, err = ina.GetCurrent(ch)
    38  				if err != nil {
    39  					fmt.Printf("INA3221Channel %v Current error: %v\n", ch, err)
    40  				}
    41  				fmt.Printf("INA3221Channel %v Current: %fmA\n", ch, val)
    42  
    43  				val, err = ina.GetLoadVoltage(ch)
    44  				if err != nil {
    45  					fmt.Printf("INA3221Channel %v Load Voltage error: %v\n", ch, err)
    46  				}
    47  				fmt.Printf("INA3221Channel %v Load Voltage: %fV\n", ch, val)
    48  			}
    49  		})
    50  	}
    51  
    52  	robot := gobot.NewRobot("INA3221 Robot",
    53  		[]gobot.Connection{r},
    54  		[]gobot.Device{ina},
    55  		work,
    56  	)
    57  
    58  	robot.Start()
    59  }