onewire didnot work about periph HOT 9 CLOSED

See https://periph.io/x/periph/experimental/host/netlink

from periph.

hi all,

I had the same issue and since I figured it out I thought of sharing an example here.

EDIT: I got the masterID (netlink.New(001)) by running lsusb

package main

import (
	"fmt"
	"os"
	"os/signal"
	"syscall"
	"time"

	"periph.io/x/periph/devices/ds18b20"
	"periph.io/x/periph/experimental/host/netlink"
	"periph.io/x/periph/host"
)

func main() {
	host.Init()

	// get 1wire bus
	oneBus, _ := netlink.New(001)

	// get 1wire address
	addr, _ := oneBus.Search(false)

	// init ds18b20
	sensor, _ := ds18b20.New(oneBus, addr[0], 10)

	ds18b20.ConvertAll(oneBus, 10)
	temp, _ := sensor.LastTemp()

	fmt.Println(temp)
}

EDIT2: and if I am not mistaken since we are using "periph.io/x/periph/experimental/host/netlink" I don't think "periph.io/x/periph/conn/onewire" will work. panic: interface conversion: *netlink.OneWire is not onewire.Pins: missing method Q

from periph.

Hi all,

I had the same issue. The answer posted by bh90210 above really helped me out!

However, I just wanted to post an updated implementation that references the packages at the new locations.

The following example simply prints the discovered 1-wire devices.

package main

import (
	"fmt"
	"log"

	"periph.io/x/host/v3"
	"periph.io/x/host/v3/netlink"
)

func main() {
	// make sure periph is initialized
	state, err := host.Init()
	if err != nil {
		log.Fatal(err)
	}
	fmt.Println("Loaded: ", state.Loaded)
	fmt.Println("Skipped: ", state.Skipped)
	fmt.Println("Failed: ", state.Failed)

	// get the 1-wire bus (via Netlink)
	w1, err := netlink.New(001)
	if err != nil {
		log.Fatal(err)
	}
        defer w1.Close()

	// get 1-wire addresses
	addrs, err := w1.Search(false)
	if err != nil {
		log.Fatal(err)
	}

	// print the 1-wire device addresses
	for i, adr := range addrs {
		fmt.Println(i, adr)
	}
}

from periph.

I swa the link
it seems i used the wrong method
but by this link i cannt find something like testcode or democode
i didnot now how to use it
is some where has democode?

from periph.

You'll have to ask the code authors, as I personally didn't work on this code. #406

from periph.

but why the onewire test code didnot work
how can i fix this
the spi is work perfect

from periph.

I can't parse your question.

I said exactly what to do, you'll have to ask the code authors. I said explicitly I did not work on this code, I never used it.

from periph.

I've actually seen the same error when using the serial package. Couldn't figure out why though. But from the docs:

At this point, it is available for use to everyone but it is not loaded by default by host.Init().

If that's the case, I wonder how do we init experimental drivers 🤔

from periph.

The code was migrated to periph.io/x/host/v3/netlink. If you want to contribute please file a PR or an issue on https://github.com/periph/host.

from periph.