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main.go
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main.go
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package main
import (
"encoding/hex"
"machine"
"time"
"tinygo.org/x/drivers/onewire"
"tinygo.org/x/drivers/ds18b20"
)
func main() {
// Define pin for DS18B20
pin := machine.D2
ow := onewire.New(pin)
romIDs, err := ow.Search(onewire.SEARCH_ROM)
if err != nil {
println(err)
}
sensor := ds18b20.New(ow)
for {
time.Sleep(3 * time.Second)
println()
println("Device:", machine.Device)
println()
println("Request Temperature.")
for _, romid := range romIDs {
println("Sensor RomID: ", hex.EncodeToString(romid))
sensor.RequestTemperature(romid)
}
// wait 750ms or more for DS18B20 convert T
time.Sleep(1 * time.Second)
println()
println("Read Temperature")
for _, romid := range romIDs {
raw, err := sensor.ReadTemperatureRaw(romid)
if err != nil {
println(err)
}
println()
println("Sensor RomID: ", hex.EncodeToString(romid))
println("Temperature Raw value: ", hex.EncodeToString(raw))
t, err := sensor.ReadTemperature(romid)
if err != nil {
println(err)
}
println("Temperature in celsius milli degrees (°C/1000): ", t)
}
}
}