Is it possible to hack kitchen scale?

Other Hardware Sensors
1

I know that is possible to hack a body scale, but actually I am trying to hack a kitchen scale which looks pretty similar to this one :

I just want to use it with an arduino so either just replacing the original board or trying to get the output from the original pcb to use as input to arduino will work for me. Specifically I want to output to serial from Arduino to the computer.

Just tell me if it's possible or not?

Thanks previously.

2

Hi, welcome to the forum.

There is often a load cell inside. It is possible to remove all the electronics and use an Arduino with extra hardware (to amplify or read the load cell).

If the existing electronics can be used ? Probably not. There might be an unknown chip under a black cover, with no way to read data from it.

3

If you are very lucky there will be an unusel serial interface somewhere, perhaps even outputing
the readings. However if you can connect after the loadcell amplifier you'll have an analog signal
of use.

4

See:

5

Archibald

Thanks a lot Mr.Archibald for this link.

6

Hello MarkT and Faraday Member

thanks a lot for your help. I bought one I will tray to open it and see what I can do.

I tell you soon

7

Now I opened the kitchen scale (see the picture attached) and this exactly what I found in it: three cables black(VCC), red(Gnd) and the white cable I guess is for the Data. So now how can I use the white cable to send Data to the Arduino and read it.

scale.png
scale.png972×540 530 KB

8

ahmeddjebali89:
Now I opened the kitchen scale (see the picture attached) and this exactly what I found in it: three cables black(VCC), red(Gnd) and the white cable I guess is for the Data. So now how can I use the white cable to send Data to the Arduino and read it.

See: