Hi guys,
I would like to do a DIY meter which could used to measure the force.
The meter i use is copy from the website below.
http://www.circuitstoday.com/wp-content ... ircuit.png
It actually was voltmeter built from ICL7107.
So, now i try to build a circuit which will give me "with every 1kg(force) it product 1 volt"
The sensor i'm used now are SN-FRC-0.5(from cytron), i have build the circuit, but it give me weird output
i'm using 741 op-amp as FSR voltage divider(follow datasheet) and i'm have no idea what i did is right or wrong
Could any expert here give me some idea to correct it?