Sensor for weighing objects

Hi guys, i could use a sensor for weighing objects little object, but wighing more then 100gr, for a project.

I found this Force-Sensing Resistor - http://www.robot-italy.com/it/force-sensing-resistor-1-5.html .

Someone has already used? Is ok for my purpose?

Thanks :wink:

Those sensors work, but they don't give you a very accurate weight, that is not their purpose.

For more accurate weighing, usually use a device with an aluminum bar with a load cell bonded to it and a hole drilled to weaken it and increase the deflection to measurable levels. You then need an amplifier circuit and adc.

A gadget like this

http://www.ebay.com.au/itm/YZC-131-5kg-4-Hole-Mini-Electronic-Scale-Sensor-Load-Cell-5-to-10V-/271561836492?pt=AU_B_I_Electrical_Test_Equipment&hash=item3f3a58c7cc

( I don't recommend that, it is the first one google came up with, which has a photo ).

if you want to get relative high-Precision result, i suggest you use the load cell weight sensor and amplifier. i do not know your mearing range , maybe this would work:Weight Sensor Kit- 3KG