Trouble with LCD 2x8 and sequential display of values

[ScaleRobotics]

How about just throw away values that are outside of expected ranges? Like take a running average, and if the temp is way off, disregard it. That way, it can still be 0 deg C, but only if its close to the average temp.

[fratello]

Thank you all for support !
Since the "timming" it's not so important , I made this change :

    ' Start temp.conv.Sensor1      
OWOut DQ1, 1, [$CC, $44]       
OWOut DQ1, 1, [$CC, $BE]      
OWIn  DQ1, 2, [temperature1.byte0, temperature1.byte1]        
Pause 800 ; because DS18B20 need 750 ms for conversion         
If Temperature1.15 then                      
Temperature1= ~Temperature1 +1               
Twist1 = 1         
Endif
...

...and the display works fine now...despite the decrease of speed in display the changes of temperatures.

[fratello]

I rushed... still have, from time to time, "0.0 'c" on display, ONLY for sensor on DQ2 (out sensor) .... ....

[gadelhas]

I rushed... still have, from time to time, "0.0 'c" on display, ONLY for sensor on DQ2 (out sensor) .... ....

Why not you poll the busy bit, instead of the Pause 800 statment?

I don't know your application, but you can also disable interrupts before the 1-wire stuff, and then enable them again.

[fratello]

I don't know your application, but you can also disable interrupts before the 1-wire stuff, and then enable them again.

Thanks for help ! How can I make this ? The most part of code it's in post #1...

[gadelhas]

Thanks for help ! How can I make this ? The most part of code it's in post #1...

Can you put the code of your interrupts stuff, because i don't see it in the code of the post #1

[fratello]

I use just :
"Include "Elapsed.bas"" ; for counting seconds
without other interrupts...

[Darrel Taylor]

fratello,

Try this hex file.
It uses elapsed.bas, adds CRC checking and error correction, while only using 1375 WORDs.
Yours was 1871 WORDs, so it also saves ~500 WORDs (~1/4 of total memory.)

It should run on your .dsn, but the voltage will be off because I changed the circuit a little.



I didn't have your code, so the battery icon is different.

[fratello]

Thank You so much ! I will try soon Your hardware ... I must (re) build the PCB.
In Proteus I have some messages ... It's something wrong ?
...and the temperature on display don't follow the variation of sensor(s)-the new temperature is on display NEXT time when the temperature is show !