Re: [Owfs-developers] Reliability and Robustness of the DS2482-100 or DS2482-800
Should do, it had a resistor in series of each of the ground and data lines, and a zener to suppress voltage spikes. On 18 February 2019 9:59:20 pm AEDT, Mick Sulley wrote: >So adding a DS9503 in each of the busses on a DS2482-800 should stop >lock-up problems? > > >On 17/02/2019 22:13, Alastair D'Silva wrote: >> The series resistance within a DS9503 should be sufficient, I hope. >It's worth using these anyway, for ESD protection. >> > > >___ >Owfs-developers mailing list >[email protected] >https://lists.sourceforge.net/lists/listinfo/owfs-developers -- Sent from my Android device with K-9 Mail. Please excuse my brevity.___ Owfs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/owfs-developers
Re: [Owfs-developers] Reliability and Robustness of the DS2482-100 or DS2482-800
So adding a DS9503 in each of the busses on a DS2482-800 should stop lock-up problems? On 17/02/2019 22:13, Alastair D'Silva wrote: The series resistance within a DS9503 should be sufficient, I hope. It's worth using these anyway, for ESD protection. ___ Owfs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/owfs-developers
Re: [Owfs-developers] Reliability and Robustness of the DS2482-100 or DS2482-800
The series resistance within a DS9503 should be sufficient, I hope. It's worth using these anyway, for ESD protection. -- Alastair D'Silva mob: 0423 762 819 skype: alastair_dsilva msn: [email protected] blog: http://alastair.d-silva.orgTwitter: @EvilDeece > -Original Message- > From: Jan Kandziora > Sent: Monday, 18 February 2019 6:34 AM > To: OWFS (One-wire file system) discussion and help [email protected]>; Mail Lists > Subject: Re: [Owfs-developers] Reliability and Robustness of the DS2482-100 > or DS2482-800 > > Am 15.02.19 um 10:19 schrieb Mail Lists: > > > > So has anyone got any feedback on how reliable the DS2482-100 or > > DS2482-800 are and if there are some special precautions I need to > > consider? > > > The DS2482-800 has one problem. If the power to the chip dips, which may > happen due to a bus short, it sometimes refuses to switch to another > channel until you power-cycle it fully. > > So, use 10Ω series resistances on the buses to avoid that problem. Or use > several DS2482-100, or DS2483, or DS2484. > > Kind regards > > Jan > > > ___ > Owfs-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/owfs-developers > > > --- > This email has been checked for viruses by AVG. > https://www.avg.com ___ Owfs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/owfs-developers
Re: [Owfs-developers] Reliability and Robustness of the DS2482-100 or DS2482-800
Am 15.02.19 um 10:19 schrieb Mail Lists: > > So has anyone got any feedback on how reliable the DS2482-100 or > DS2482-800 are and if there are some special precautions I need to > consider? > The DS2482-800 has one problem. If the power to the chip dips, which may happen due to a bus short, it sometimes refuses to switch to another channel until you power-cycle it fully. So, use 10Ω series resistances on the buses to avoid that problem. Or use several DS2482-100, or DS2483, or DS2484. Kind regards Jan ___ Owfs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/owfs-developers
Re: [Owfs-developers] Reliability and Robustness of the DS2482-100 or DS2482-800
You can directly run 1wire on digital io using existing libraries, but you’d need to build your own commands for devices. I’m about to do it for a few devices on ESP32 in MicroPython. DS18B20 works out of the box but search isn’t even implemented. Not too hard though. If you want to go bus master route, you can throw a ds2483 on an i2c bus and go that way. I’ve used them for years and they’re great. I end up needing uarts for other things and prefer to reserve them for when I have no other choice. WRT to the Pi, I have moved away from them completely due to reliability issues, so I think your move is wise. I use ESP32s everywhere. Thermostat, irrigation, pushing everything to cloud and also doing local control. C > On Feb 15, 2019, at 01:19, Mail Lists wrote: > > Hi Guys, > > I’ve been using a couple of LinkUSB 1-Wire USB adaptors with a RPi running > OWFS for my heating system, which seems to have performed well. > > However, I’m considering changing it to something that will interface > directly to the Clipsal C-Bus system I have in the house, so I can control > the heating directly from within the C-Bus world and remove the RPi, to make > it more robust in case we sell the house in the nest few years. > > So I’m thinking of making a device that talks to the 1-Wire via some > DS2482-100 modules or a DS2482-800 and maybe driving it from a ESP32 with one > of the UARTs connected to a C-Bus to Serial module and use the Open-Source > C-Bus node software Clipsal released years ago to join the two worlds. > > So has anyone got any feedback on how reliable the DS2482-100 or DS2482-800 > are and if there are some special precautions I need to consider? > > Regards > > Alex Shepherd > > ___ > Owfs-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/owfs-developers ___ Owfs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/owfs-developers
