I have four half bridge strain gauge load sensors connected in a wheat-stone bridge configuration. I have fed the output of the sensors to the ADC (ADS1230) which is a 20 bit analog to digital converter.I have used ATMEGA16 microcontroller that takes the input from the ADC and displays to the LCD. But I am not getting constant reading .i.e ADC value is highly fluctuating and there is no way i can measure the weight accurately. I had also twisted the wires coming out from the loadcell. [Here](http://www.ebay.com/itm/like/4-pcs-x-Body-Load-Cell-Weighing-Sensor-Resistance-strain-Half-bridge-Total-200kg/181468910742?hlpht=true&ops=true&viphx=1&_trksid=p2050601.c100103.m2451&_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20140211150826%26meid%3De954f720f55c42828eb341943cfd6f58%26pid%3D100103%26rk%3D4%26rkt%3D4%26sd%3D251873576571%26clkid%3D7013573801601066476&_qi=RTM2010733) is the link to the load cells that I have used. 
And the schematics as follows:

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