90 lines
2.0 KiB
Go
90 lines
2.0 KiB
Go
//go:build example
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// +build example
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//
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// Do not build by default.
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package main
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import (
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"fmt"
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"time"
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"gobot.io/x/gobot/v2"
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"gobot.io/x/gobot/v2/drivers/i2c"
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"gobot.io/x/gobot/v2/platforms/tinkerboard"
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)
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// Wiring
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// PWR Tinkerboard: 1 (+3.3V, VCC), 2(+5V), 6, 9, 14, 20 (GND)
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// I2C1 Tinkerboard: 3 (SDA-ws), 5 (SCL-gn)
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// ADS1115 plate: VDD (2.0..5.5V), GND, SDL, SDA, A0..A3 (input voltage 0..5V)
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func main() {
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const voltage = 5.0 // we will be able to read values of at least 5V (for all channels)
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a := tinkerboard.NewAdaptor()
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ads1115 := i2c.NewADS1115Driver(a, i2c.WithADS1x15BestGainForVoltage(voltage))
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work := func() {
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var a0, a1, a2, a3 float64
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var err error
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gobot.Every(2*time.Second, func() {
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a0, err = ads1115.ReadWithDefaults(0)
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if err != nil {
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fmt.Println(err)
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} else {
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fmt.Println("A0", a0)
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}
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a1, err = ads1115.ReadWithDefaults(1)
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if err != nil {
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fmt.Println(err)
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} else {
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fmt.Println("A1", a1)
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}
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a2, err = ads1115.ReadWithDefaults(2)
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if err != nil {
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fmt.Println(err)
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} else {
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fmt.Println("A2", a2)
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}
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a3, err = ads1115.ReadWithDefaults(3)
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if err != nil {
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fmt.Println(err)
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} else {
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fmt.Println("A3", a3)
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}
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if v, err := ads1115.ReadDifferenceWithDefaults(0); err != nil {
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fmt.Println(err)
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} else {
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fmt.Printf("A0-A1 %f, (e: %f)\n", v, v-(a0-a1))
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}
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if v, err := ads1115.ReadDifferenceWithDefaults(1); err != nil {
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fmt.Println(err)
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} else {
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fmt.Printf("A0-A3 %f, (e: %f)\n", v, v-(a0-a3))
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}
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if v, err := ads1115.ReadDifferenceWithDefaults(2); err != nil {
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fmt.Println(err)
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} else {
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fmt.Printf("A1-A3 %f, (e: %f)\n", v, v-(a1-a3))
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}
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if v, err := ads1115.ReadDifferenceWithDefaults(3); err != nil {
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fmt.Println(err)
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} else {
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fmt.Printf("A2-A3 %f, (e: %f)\n", v, v-(a2-a3))
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}
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fmt.Println("-------------")
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})
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}
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robot := gobot.NewRobot("ads1115bot",
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[]gobot.Connection{a},
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[]gobot.Device{ads1115},
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work,
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)
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if err := robot.Start(); err != nil {
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fmt.Println(err)
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}
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}
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