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    MasterCATZ

    @MasterCATZ

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    Best posts made by MasterCATZ

    • RE: Round water tank level sensor

      very interesting and another Aussie, QLDer here

      posted in My Project
      MasterCATZ
      MasterCATZ
    • RE: 💬 AM612 Passive Infrared Sensor Breakout Board

      @waspie

      https://robu.in/wp-content/uploads/2020/09/Pir-BM612.pdf

      planning on switching over to these as well

      sensitivity setting and better times

      posted in OpenHardware.io
      MasterCATZ
      MasterCATZ

    Latest posts made by MasterCATZ

    • RE: 💬 AM612 Passive Infrared Sensor Breakout Board

      @waspie

      https://robu.in/wp-content/uploads/2020/09/Pir-BM612.pdf

      planning on switching over to these as well

      sensitivity setting and better times

      posted in OpenHardware.io
      MasterCATZ
      MasterCATZ
    • RE: 💬 AM612 Passive Infrared Sensor Breakout Board

      all good at least I can steal your sensor hole placements and can stumble along modding in KiCAD

      tho unsure why the board size is smaller when I converted it it seems to trim along where the cover's holes are and not leaving any meat behind

      did you come across any other sensors better than this for the price?

      posted in OpenHardware.io
      MasterCATZ
      MasterCATZ
    • RE: 💬 AM612 Passive Infrared Sensor Breakout Board

      Or a 12x DIP switch and a Jumper

      Jumper for the shortest and longest Time settings
      Then pads for installing the 12 Resistors for Time in Seconds the LED / Relay etc is activated for ?

      also, how were you mounting these boards with no screw holes? just something for the lens cover to clip into

      posted in OpenHardware.io
      MasterCATZ
      MasterCATZ
    • RE: 💬 AM612 Passive Infrared Sensor Breakout Board

      Thanks for the breakout board, but would it be too much to ask for a revision that can have potentiometers mounted?
      so resistors do not need to be changed when tinkering with 15x settings? either SMD or Through-Hole Trimmer

      0-300k None?,0-1M

      posted in OpenHardware.io
      MasterCATZ
      MasterCATZ
    • one-wire network type switch for relay?

      as I now have my one-wire network running for my temperature probes

      I am now wanting to control some heaters and fans, is there anything I can use with domoticz that uses the one-wire system?

      http://www.datasheetspdf.com/PDF/SSR-40DA/789332/3

      ideally looking to control this relay something 3-5v DC driven from 1-wire setup for 240v AC switching for backup heaters for when there is a quick drop in temperature, just unsure what I should be looking for to control it

      I believe DS2408 8-channel, programmable I/O 1-Wire chip is a possibility that is quite common but only needs to control one or two device's at each location, are there any single channel possibilities? DS2406 / DS2413 ? ideally, a pre built module that I can add my own relay? a lot of the pre built relays are quite low on the AMP

      ideally something like this
      http://www.ebay.com.au/itm/5V-1-Channel-Relay-Module-Shield-for-Arduino-Uno-Meage-2560-1280-ARM-PIC-AVR-DSP-/232380878471?epid=707943971&hash=item361aface87:g:Ou4AAOSwVJhZSgJH

      but for 1-wire network like this would work

      http://www.ebay.com.au/itm/1-Wire-8-Channel-Relay-Module-Board-based-on-Dallas-DS2408-chipset-/181253848913?var=&epid=534808210&hash=item2a33923f51â“‚mGakh0Ev_T_fzzBfM6Se18g

      but why pay for 7 relays that will never be used

      posted in General Discussion
      MasterCATZ
      MasterCATZ
    • RE: help needed with multiple temp sensor data logging project

      @wallyllama thanks that is what I feared, and would have made the job a lot easier
      how ever I was thinking about doing it the other way to keep the other probes already made backward compatible as they used pins 1-4

      just trying to weigh up the pro's and cons
      also out of all those 3 way splitters only 15x actually have all pins functional ...

      so trying to think of a way to still use the dodgy ones by having redundancy's in place

      I think the way the PSU is wired up at the moment is the correct way
      things don't seem to be stressed out this time

      I am also raising my polling times as I think I read somewhere it takes the sensors 750ms to perform a function and uses 1.5 mA each?

      Sensor Poll Period: 1000 to 30000
      Switch Poll Period: 100 to 1000

      my way of thinking this should still have all 60 sensors read in 1 min?
      60 sec / 1000ms for Switch Poll period?

      edit kept my original pin out just doubling up instead of having in/out

      I will just change the colors to make it easier to put into the jacks
      with out doing A / B standard Ethernet wiring

      Pin 1 (White/Green) - Power return or ground
      Pin 2 (Green) - +5V
      Pin 3 (White/Blue) - Power return or ground
      Pin 4 (Blue) - DQ (data in)

      Pin 5 (White/Orange) - 1-Wire return or ground
      Pin 6 (Orange) - +5V
      Pin 7 (White/Brown) Power return or ground
      Pin 8 (Brown) - DQ (data out)

      this way a ground will be on every twisted pair
      voltage is higher now

      and now that I just soldered everything up, I notice I don't even need the pull-up because I am using external PSU anyhow
      I knew I should have put in a bypass switch

      posted in General Discussion
      MasterCATZ
      MasterCATZ
    • RE: help needed with multiple temp sensor data logging project

      anyone know the correct way I should be using an external power source

      I powered them up directly with + - still running to the pi and blew the external 2a 5v power pack ( it also powered up the pi and I believe back-feeding this way removes surge protection )

      then I tried with the GND and DQ connected with the pi doing the pull up , external PSU ( 30A rated 5v rail 450w 3.3v 12v 5v ) looked like it was shorting out dropping .2v per probe and changing sound as tho it was under load how ever I am currently using its 3A port

      I then tried with just the DQ connected not much luck

      then I moved the bread board over the PSU and had the 4.7k pull up on its end and DQ / GND connected to the pi , I seem to have some connections, but getting a lot of unknown vendor type errors
      but PSU does not seem to be under load

      http://datasheets.maximintegrated.com/en/ds/DS2482-100.pdf
      I might get one of these I2C one wire bridge that can adjust the strength of the pull-up dynamically as the network grows

      http://videos.cctvcamerapros.com/voltage-drop-calculator

      has got me thinking I might double up on the strands 24 gauge has too much voltage drop @ 5v

      should I just treat each pair as a wire or should I have ground on each twist ?

      ie
      ( p1,p2 GND) Green pair
      ( p3,p4 VCC ) Blue pair
      (p5.p6 DQ ) Orange pair
      ( p6,p7 GND ) Brown pair

      or
      (p1 ground p2 VCC ) Green pair
      (p3,ground p4 VCC ) Blue pair
      (p5,ground,p6 DQ ) Orange pair
      (p7,ground,p8 DQ ) Brown pair

      or any other combo, I would rather use a 2amp PSU than a 30 amp .. but thats so far the only way to keep these things powered up in a daisy chain

      https://forum.allaboutcircuits.com/threads/24-gauge-wire-if-you-double-up-strands-what-equivalence-gauge.108649/

      posted in General Discussion
      MasterCATZ
      MasterCATZ
    • RE: help needed with multiple temp sensor data logging project

      might be best to NOT buy the ones I got , just discovered 1x port of just about all of them was not working correctly
      ( pins on slight angle off setting alignment )

      causing the probes to be in parasitic mode

      posted in General Discussion
      MasterCATZ
      MasterCATZ
    • RE: help needed with multiple temp sensor data logging project

      @zboblamont I will be able to test the lengths today, making another 20x temperature sockets and I have a heap of 20m cat5 cables to chain from

      I am using a trim pot to adjust at the breadboard, so far still 4.7

      if I was going to do it again would use a 5 or 10k high precision the 5% pot too dodgy

      still yet to use resistors on each drop and I have a 10v 1000uf capacitor on each ground / vcc, no idea if it helps or not

      you could also run a 100mbs LAN plus temp probes each using 4x of the 8 cat5 pins

      http://www.108relays.ca/dl/1_Wire_Design_Guide_v1.0.pdf

      edit

      it looks like you have to keep the lengths and probe numbers equal if your splitting them off like a tree

      if I had 1 side 6m longer with more probes than the other side a probe read 0 deg

      added more probes on the other side and they read fine again
      ( touch wood )

      I have placed a probe at the end with no capacitor, can not get it to connect

      when I make more probes tomorrow will try that spot again with a capacitor

      for now will try the one with out capacitor at the first split near the pi to see what happens, it's pitch black now time for bed 😛

      strange thing just tried another stock probe with no capacitor and can not get that to work either and I was running these ones inside all day
      for some reason voltmeter reads neg millivolts

      now I just want to build another cap probe to see whats going on

      edit , either I wired something backwards or maybe i just hit the limits adjusting trim pot now as even the DS18B20 on the bread board stopped responding

      edit, somethings not right pulled the main link and its receiving 0 deg from sensors not even plugged in.

      new probe and bread board temps working tho

      set @ 4k , tried adding another probe at 1st split all died again,
      I'd say at my limits without the 100~150 resistors trying to push 6x 20m cables
      voltage still 4+

      but I am sus as to why a probe felt warm where a cap was done, unsure if it was still from the soldering heat or not so I might have something miss wired as I was running as the day light was dropping fast
      ( this setup is for monitoring tanks in my polytunnels no lights apart from the flash light in my mouth )

      the goal was 3 x 20m on each side split at the breadboard with ~5m long branches running of each join with 2x probes about every 1 m with 1m long lengths approx 60x DS18B20 and about 210m of cable

      unfortunately, I was 1 section short the 5th section would not work
      so 50 probes 175m cable

      I'll try again in a daisy chain formation later on

      currently using raspberry pi 2 B and domoticz

      I ended up doing rj45 as they worked out cheaper than the rj11/14
      I paid $20 for 100 , also why I did not add the capacitor inside like I was going to so they could be used in other areas for LAN, hopefully, no one tries to plug a laptop into them

      http://www.ebay.com.au/itm/CS-5X-US-10x-Practical-3-Way-RJ45-LAN-Network-Ethernet-Splitter-Connector-Beige/201963874318

      posted in General Discussion
      MasterCATZ
      MasterCATZ
    • RE: help needed with multiple temp sensor data logging project

      thanks for your guidance
      parts arrived yesterday and just got the probes reading

      how ever I could not get OWFS to work,
      https://www.domoticz.com/wiki/1Wire

      sudo i2cdetect -y 1
      0 1 2 3 4 5 6 7 8 9 a b c d e f
      00: -- -- -- -- -- -- -- -- -- -- -- -- --
      10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      70: -- -- -- -- -- -- -- --

      but using /sys/bus/w1/devices
      they are there

      cat w1_slave
      a2 01 4b 46 7f ff 0c 10 49 : crc=49 YES
      a2 01 4b 46 7f ff 0c 10 49 t=26125

      edit

      actually quite happy, using 5v and daisy chained a heap of cat5 cables together for testing, over 100m all working good

      posted in General Discussion
      MasterCATZ
      MasterCATZ