I am trying to hack a personal weighing scale.I had taken help of this tutorial but the language used in this is not very easy to understand due to the non-standard naming used for load sensor wires, but its a good tutorial.
Also the amplifier used in the tutorial is not easily available in India i.e. INA125.
My question is , is there any alternative for the amplifier INA125.
Also i had read certain other tutorials for adding load sensor to the INA125 , but wasn't able to figure out exactly how to do it?
When i looked at this tutorial, i find that load sensor has to be added in place of resistors in Wheatstone bridge, but every load sensor has 3 wires, which 2 wires has to be added i am unaware of .
I am enclosing images of the load sensor which i am using and weighing machine which i am using.My main aim is to read the load sensor readings with Arduino for a different project.
