[beagleboard] 1-wire and humidity

Hello, I read 1wire sensors "DS18S20Z+" temperatur and all works fine. But now I need to read the "DS2438" with the "HIH-5030" for humidity. The beagle found the 1-wire sensor ... but the temperatur from the "DS18S20Z+" I can read with: cat /sys/devices/w1_bus_master1/28-0bef6cc1/w1_slave

Re: [beagleboard] 1-wire not working

The one-wire device appears in a different place now. Here's an example I worked up that's from https://elinux.org/EBC_Exercise_31_Dallas_1-Wire Reading the DS18B20[edit ] bone$ *cd /sys/class/hwmon/* hwmon0

Re: [beagleboard] 1-wire not working

1w didn't work in that version of Linux. It works in 4.14 if you enable the dtb file in uenv.txt. So I think you'll have to update. It looks like it should support multiple devices, but we're only using one, so I haven't tried. Good luck. -j On Mon, Nov 18, 2019, 10:28 AM Fohnbit wrote: > Hel

[beagleboard] 1-wire not working

Hello, I tried to enable 1-wire, but did not found some paths .. maybe my installation is different? I´m not sure what you need, so I write what I did so far: */boot/uEnv.txt:* #Docs: http://elinux.org/Beagleboard:U-boot_partitioning_layout_2.0 uname_r=4.9.82-ti-r102 #uuid= #dtb= ###U-Boot Ov

[beagleboard] 1-Wire

Hello, I´m not sure about the maxium 1-wire sensors. 1. How many GPIOs I can use for 1-wire? Right now I enabled Pin 9.12 for 1-wire. Can I add a second or third pin to made several own lines? 2. How many 1-Wire I can use on one pin? I read on a website about up to 10 ... but this is not very mu

Re: [beagleboard] 1-wire on BB Blue

Hi all, Perhaps someone understands the device tree overlay file format better than I do (I sure hope so). Again, my purpose here is to be able to use a 1-wire interface on the Beaglebone Blue using one of the 6 GPIO pins connected to a header. I have selected GPIO1_25 which seems to be otherwise

[beagleboard] 1-wire on BB Blue

Hi, I have several questions and hope someone can help. I'm trying to figure out how to configure ports on a beaglebone, generically. I haven't found a good site which describes any of this thanks to the relatively recent changes in how device tree overlays are handled. I'd like to be able to

Re: [beagleboard] 1-Wire Implementation on PocketBeagle

On Thu, Feb 15, 2018 at 2:12 PM, evilwulfie wrote: > I cant help you with a pocket beagle but i can help. > dont reflash. put a bootable SD card in boot and mount the emmc > > mount -t ext4 /dev/mmcblk1p1 /mnt/emmcext > cd /mnt/emmcext/boot > > comment out the offending line in your uEnv.txt file

Re: [beagleboard] 1-Wire Implementation on PocketBeagle

On Thu, Feb 15, 2018 at 2:11 PM, Robert Nelson wrote: > On Thu, Feb 15, 2018 at 1:48 PM, wrote: >> I am trying to implement the 1-Wire protocol to read a DS18B20 temperature >> sensor on the PocketBeagle. So far I have been able to correctly read the >> temperature on a BeagleBone Black (BBB) us

Re: [beagleboard] 1-Wire Implementation on PocketBeagle

I cant help you with a pocket beagle but i can help. dont reflash. put a bootable SD card in  boot and mount the emmc mount -t ext4 /dev/mmcblk1p1 /mnt/emmcext cd /mnt/emmcext/boot comment out the offending line in your uEnv.txt file umount /mnt/emmcext and reboot On 2/15/2018 12:48 PM, caleb.

Re: [beagleboard] 1-Wire Implementation on PocketBeagle

On Thu, Feb 15, 2018 at 1:48 PM, wrote: > I am trying to implement the 1-Wire protocol to read a DS18B20 temperature > sensor on the PocketBeagle. So far I have been able to correctly read the > temperature on a BeagleBone Black (BBB) using the following guide: > > http://www.bonebrews.com/temper

[beagleboard] 1-Wire Implementation on PocketBeagle

I am trying to implement the 1-Wire protocol to read a DS18B20 temperature sensor on the PocketBeagle. So far I have been able to correctly read the temperature on a BeagleBone Black (BBB) using the following guide: http://www.bonebrews.com/temperature-monitoring-with-the-ds18b20-on-a-beaglebone

[beagleboard] 1 Wire device with universal overlay

I have been using a 1 wire overlay for pin P9.22 for a while and I just expanded my toy to use a couple of pwm pins. Instead of creating the overlay myself, I figured I would try the universal overlay. I am using universaln and have an init.d script to load it and all is well. The problem i

[beagleboard] 1-Wire

Hello, I want to use 1-wire DS18B20+ sensors with the BBB. On my breadcrump is work with 2 sensors. My question: with: cat w1_bus_master1/w1_master_max_slave_count he show me max 10 sensors ... why? I need around 25 sensors with a wire length of 50m. Is this possible? I use all 3 wires (GND,

[beagleboard] 1-Wire (owfs) working via gpio under Ubuntu; mysteries remain...

I've installed owfs and can read DS18B20 temperatures via 1-Wire on my A5C BBB with Ubuntu 12.04 - even over the web! The dts overlay loads at startup: --- [ 760.176601] bone-capemgr bone_capemgr.9: part_number 'w1', version 'N/A' [ 760.176888] bone-capemgr bone_capemgr.9: slot #7: 'Override B