Re: [Owfs-developers] DS18B20 Question

Am 30.10.18 um 15:35 schrieb Mick Sulley: > I had a temperature sensor fail and replaced it but I am seeing strange > results from the new one. > > This is what I see.  Why do Temperature 11 & 12 seem OK but 9, 10 and > Lasttemp are all 85?  Is it a bad sensor? > owhttpd cannot sample all those

[Owfs-developers] DS18B20 Question

I had a temperature sensor fail and replaced it but I am seeing strange results from the new one. This is what I see.  Why do Temperature 11 & 12 seem OK but 9, 10 and Lasttemp are all 85?  Is it a bad sensor? *address* 2848999D046C *alias* *crc8* 6C *errata*

Re: [Owfs-developers] DS18B20 Question

Right. Will do. On Tue, Mar 1, 2016 at 3:17 PM, Colin Reese wrote: > Check your connector. Those Rj12s can get squidgy with enough fussing > about. > > > On Tue, Mar 1, 2016 at 3:14 PM, Peter Hollenbeck > wrote: > >> I must have it wired wrong. >>

Re: [Owfs-developers] DS18B20 Question

Check your connector. Those Rj12s can get squidgy with enough fussing about. On Tue, Mar 1, 2016 at 3:14 PM, Peter Hollenbeck wrote: > I must have it wired wrong. > Really odd that yesterday evening it worked and I got valid ocean > temperature values. > > Back to checking

Re: [Owfs-developers] DS18B20 Question

I must have it wired wrong. Really odd that yesterday evening it worked and I got valid ocean temperature values. Back to checking wiring. Thanks, Peter On Tue, Mar 1, 2016 at 1:59 PM, Eric Vickery wrote: > Definitely sounds like the 1-Wire bus is getting shorted

Re: [Owfs-developers] DS18B20 Question

Definitely sounds like the 1-Wire bus is getting shorted out. > On Mar 1, 2016, at 3:56 PM, Peter Hollenbeck wrote: > > I must have something else wrong. When I connect the DS18B20 without a > resistor the MS-TV disappears. > > Odd that it worked last night - with a 5K

Re: [Owfs-developers] DS18B20 Question

That's encouraging. On Tue, Mar 1, 2016 at 2:01 PM, Colin Law wrote: > On 1 March 2016 at 21:56, Peter Hollenbeck wrote: > > I must have something else wrong. When I connect the DS18B20 without a > > resistor the MS-TV disappears. > > Is that with the

Re: [Owfs-developers] DS18B20 Question

On 1 March 2016 at 21:56, Peter Hollenbeck wrote: > I must have something else wrong. When I connect the DS18B20 without a > resistor the MS-TV disappears. Is that with the correct connections or the original wrong ones? Correct the wiring, if it is wrong, and try again.

Re: [Owfs-developers] DS18B20 Question

I must have something else wrong. When I connect the DS18B20 without a resistor the MS-TV disappears. Odd that it worked last night - with a 5K resistor. I do not know electronics. Thanks, Peter On Tue, Mar 1, 2016 at 1:48 PM, Johan Ström wrote: > > > On 01/03/16 22:38,

Re: [Owfs-developers] DS18B20 Question

On 01/03/16 22:38, Peter Hollenbeck wrote: > Raspberry Pi Ethernet to LinkUSB > Ethernet from LinkUSB to MS-TV > Ethernet from MS-TV to DS18B20 > > Ethernet connections to DS18B20: > DS18B20 +5V red connected to RJ45 pin 2 > DS18B20 ground blue to RJ45 pin 6 > DS18B20 data yellow to RJ45 pin 4

Re: [Owfs-developers] DS18B20 Question

Raspberry Pi Ethernet to LinkUSB Ethernet from LinkUSB to MS-TV Ethernet from MS-TV to DS18B20 Ethernet connections to DS18B20: DS18B20 +5V red connected to RJ45 pin 2 DS18B20 ground blue to RJ45 pin 6 DS18B20 data yellow to RJ45 pin 4 Thanks, Peter On Tue, Mar 1, 2016 at 1:27 PM, Johan Ström

Re: [Owfs-developers] DS18B20 Question

I didn't read your message carefully. "Are you using a dedicated onewire host adapter chip or just a simple GPIO pin? For the latter you have to connect the pullup to 3.3V, not 5V." I am connecting from the DS18B20 to cat6 to the MS-TV. I am not using the GPIO. Don't know how. I have other

Re: [Owfs-developers] DS18B20 Question

On 01/03/16 22:21, Peter Hollenbeck wrote: Question regarding the workings of this forum: Does everyone see your email and does everyone see this reply? I hope so, so that all information on the subject shared. Correct, every mail sent to this address is sent to every member of the list, and

Re: [Owfs-developers] DS18B20 Question

I think 3 wire, but don't know. That is: DS18B20 +5V red connected to RJ45 pin 2 DS18B20 ground blue to RJ45 pin 6 DS18B20 data yellow to RJ45 pin 4 If this is 3 wire, what is 2 wire? Thanks, Peter On Tue, Mar 1, 2016 at 1:00 PM, Colin Law wrote: > On 1 March 2016 at 18:48,

Re: [Owfs-developers] DS18B20 Question

Question regarding the workings of this forum: Does everyone see your email and does everyone see this reply? I hope so, so that all information on the subject shared. Anyway, I followed the suggestion of one person to connect a 1K resistor to 3.3 V and Data. The DS18B20 is not seen but the MS-TV

Re: [Owfs-developers] DS18B20 Question

On 1 March 2016 at 18:48, Peter Hollenbeck wrote: > I have a Raspberry Pi with LinkUSB and a MS-TV reading DC voltage. This > works. > Yesterday I added an Adafruit DS18B20 waterproof temperature sensor and it > worked for a while. > This morning neither the MS-TV nor the

Re: [Owfs-developers] DS18B20 Question

In your initial post you wrote "I have a Raspberry Pi with LinkUSB and a MS-TV reading DC voltage." If you have a LinkUSB, you don't connect your 1-Wire devices to a GPIO pin, right? The LinkUSB should not require any pullup at all. On 01/03/16 21:16, Peter Hollenbeck wrote: It did not work

Re: [Owfs-developers] DS18B20 Question

I'll try that. Thank you very much. Peter On Tue, Mar 1, 2016 at 12:11 PM, Jan Kandziora wrote: > Am 01.03.2016 um 19:48 schrieb Peter Hollenbeck: > > > > The new temperature sensor is connected with 150 feet of waterproof Cat6. > > When trying to get it working I read that the

Re: [Owfs-developers] DS18B20 Question

Am 01.03.2016 um 19:48 schrieb Peter Hollenbeck: > > The new temperature sensor is connected with 150 feet of waterproof Cat6. > When trying to get it working I read that the DS18B20 needs a 4.7K resistor > connecting +5V to Data. > Are you using a dedicated onewire host adapter chip or just a

Re: [Owfs-developers] DS18B20 Question

It did not work without the resistor. I thought to look at Adafruit product information: https://www.adafruit.com/products/381 "We toss in a 4.7k resistor, which is required as a pullup from the DATA to VCC line when using the sensor." Yesterday evening it worked with the 5K resistor. (Actually 5

Re: [Owfs-developers] DS18B20 Question

On 01.03.2016 19:48, Peter Hollenbeck wrote: > When trying to get it working I read that the DS18B20 needs a 4.7K > resistor connecting +5V to Data. Where did you read that? Did you try without the resistor? -- Matthias Urlichs

[Owfs-developers] DS18B20 Question

I have a Raspberry Pi with LinkUSB and a MS-TV reading DC voltage. This works. Yesterday I added an Adafruit DS18B20 waterproof temperature sensor and it worked for a while. This morning neither the MS-TV nor the DS18B20 are seen by owfs. If I remove the DS18B20 the MS-TV reappears. The new