Dewpointer Опции

[Andrejka]

Hi, I found a schematic of simple temperature, huminidity and dewpoint measuring cicruit. Originally device uses: Sht11 sensor, AT90S8535 MCU, and HD44780 like 20x4 LCD. In my project I replace Sht11 with Sht15 (from Sparkfun), At90s8535 is replaced with newer Atmega8535 (Atmel datasheets say - this is a at90s8535 direct repalcement). But this device working incorrectly, so I have only "Sht11 Monitor" label on LCD, without sensor readings. If possible please help me with source code.

Source project:







URL:
Source project - http://www.embedtronics.com/sht11/sht11.html
Source code - http://www.embedtronics.com/sht11/shtdemo1.c
Schematic - http://www.embedtronics.com/sht11/SHT11Sch.pdf


My device show only this label:



I tried to simulate device in Proteus simulator but this program show the same screen, without sensor readings, only label.


Thank You!

[radu]

hello
i'm beginner and i have the same problem as Andrejka
i try atmega16, 32 and 162 and the resultat was the same
at start the LCD show only "SHT11 MONITOR" on first line
when i disconnect the 10 k pull-up resistor from DATA line of SHT11 sensor it didn't show time and date and the other parameters aren't correct, only heat position swich is correct
i mentioned i'm using CodevisionAvr to compile and i tryed the sugestion metioned in previously posts
i attach the pictures
any sugestion to make it work will be helpfull
best regards

Сообщение отредактировал radu - Jan 16 2009, 10:42

Эскизы прикрепленных изображений