Search found 8 matches

After due consideration I've decided, as recommended, not to decode the LCD levels but instead replace the controller in its entirety and use the output of the load cells via an Instrument Amplifier e ...

I tried all the spare pins and no signals of interest.

I looked at the load cells... there are four, one in each corner. The load cells each come with three wires... white, blue and red. For so ...

On the underside of the board you can see the wires from the four load sensors each with two resistive strips.

Presumably white is common and red is one sensor and blue is the opposing sensor. T ...

test points are usually small round exposed copper pads... they look like vias but without the hole in the middle... these are used with pogo pins that press on the board once the board is assembled. ...

Front

http://s14.postimage.org/4nndpi1gh/img004.jpg

Back

http://s14.postimage.org/8vi5y92w1/img005.jpg

Zebra Strip on left to connect to LCD glass.

Single CR2032 battery and 4 load sens ...

The scale has four load sensors... presumably in a whetstone bridge arrangement. I could try using those directly with an instrumentation amplifier etc.

I quite liked my approach but I'm starting ...

It's not a "LCD module"... it's the raw display, i.e. the bit of glass via a zebra strip connector. The driver is on a custom chip that is inaccessible but the tracks to the zebra strip are ...

I am trying to work out how to take a weighing scale and decode the LCD signals (a google shows this has been done before) and to take the signal and send it wirelessly.

However, I thought I woul ...