Re: WiFi range ...

On 8/5/26 08:21, The Natural Philosopher wrote:
> On 05/08/2026 06:52, c186282 wrote:
>> On 8/4/26 06:37, The Natural Philosopher wrote:
>>> On 04/08/2026 01:20, c186282 wrote:
>>>> On 8/3/26 07:22, The Natural Philosopher wrote:
>>>>> On 03/08/2026 05:12, c186282 wrote:
>>>>>> kind-of EXACT humidity readings are a sort
>>>>>>    of black art.
>>>>>
>>>>> The presence of a tree exuding transpired water can totally distort 
>>>>> a reading
>>>>> As cam a crowd of sweaty people
>>>>
>>>>    Immediate environment is indeed a complicating factor !
>>>>    Similar issues with getting accurate temperatures. Sun
>>>>    hits a dark or concrete patch 50 yards away at a certain
>>>>    time of day and it may send a plume of hot air at yer
>>>>    device.
>>>>
>>> My oil tank monitor regularly shows temps over 40°C in its black case 
>>> with the sun shining on it
>>
>>    Never had to monitor an "oil tank".
>>
>>    But, if exposed to sun/wind/etc, your ARE gonna
>>    get weird figures all day.
>>
> The ultrasonics delay that measures oil level changes with tempertaure 
> as does the depth of the oil due to expansion., I WANT to know how hot 
> the tank is.

   DID use a bunch of ultrasonic sensors for field projects.
   NOT as straight up as promised ... every time you start
   them they kinda establish a new 'zero'. Had to write
   something that'd start them like five times ... then do
   a stat approach to seven readings thereafter. THEN the
   numbers were really damned good. Only took like five
   or six seconds. Bonus - it disappeared rain/ripple
   effects.


>>
> The model of simply downloading a file over USB to code the Picos is 
> nice and simple.

   Yea, they ARE 'better' these days.

   But I'm still pissed that MicroChip and
   friends let it get SO much more complex
   and expensive ! They kind of cut their
   own throats.

   Little uCs ... GREAT devices IF you can
   deal with them easily. Found SO many uses
   for them in the past. NOW won't touch them.

   Last "field environ units" I built used a
   PIC 16 and 12 ... didn't even have to think
   about using them, replaced several 4000/7000
   chips and you could TWEAK them easily.

   I like the Ard Uno boards with the socketed
   processor chips. The board is both yer
   programmer AND test unit. Then pull the chip
   and solder it into yer whatever. All CHEAP
   and EASY.

   Sometimes "high-speed" isn't required for
   some I/O situations.