3 DSB18B20 to 7 Seg

[pilko]

Hi all,

Would it be possible to read the temperature from three DS18B20’s to a single 7 seg display using a 27X1 and some sort of sequencing. For example 2 (pause 50) 3 ( pause 100) 3 (pause 50) 7 (pause 100) -1 (pause 50) 2 (pause 200) repeat. This would indicate temperature readings of 23 , 37 , and -12 in sequence.
I got the idea from manuka’s post “20M + 7 Seg + DS18B20 = easy!”
I am not asking anyone to do my work for me ( I am going to study the manuals and try to write the code) I just need to know if the project is feasible before I work many hours in vain.

Thanks,

Pilko.
http://www.picaxeforum.co.uk/showthread.php?t=9436&highlight=ds18b20

 

[westaust55]

Your suggestion would be totally possible.

So that you know exactly which temp is being displayed at any time, you could for example display a digit (1,2,3) and simultaneously turn on the decimal point as an indicator.
that is:
1. pause 2 pause 3 for temp 1 = 23 degrees.

 

[pilko]

Thanks westaust55.