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by Neomorph
Thu Nov 22, 2018 4:30 pm
Forum: Automation, sensing and robotics
Topic: Reading old weight scale
Replies: 124
Views: 19153

Re: Reading old weight scale

1. Thanks tlfong01 for all these topics and links. I'll try to look into all the stuff and extract what I can use for my project. 2. Since my scale goes from 0.01 to 200 g and is using an unknown sensor I most probably just have to try. 3. First off I'll have to find out how the LCD worked with the...
by Neomorph
Thu Nov 22, 2018 8:29 am
Forum: Automation, sensing and robotics
Topic: Reading old weight scale
Replies: 124
Views: 19153

Re: Reading old weight scale

HX711 Testing Notes - JIT DIY Wheatstone Bridge Load Cell Come Lately 5kg, Excitation 5~10V , Sensitivity 1.0mV ( +- 0.15 mV), full load = 5mV HX711 ESP8266 Evaluation Kit assembly notes Now I have assembled something to evaluate the HX711. There is an adjustable voltage reference of 0mV ~ 7mV to t...
by Neomorph
Wed Nov 21, 2018 11:06 pm
Forum: Automation, sensing and robotics
Topic: Reading old weight scale
Replies: 124
Views: 19153

Re: Reading old weight scale

If you are trying to re-use most of the original scale then one approach would be to read the signals that drove the LCD display. This would need a bit of research to work out what they are and how to input them into the GPIO of the Pi. You don't show the LCD display in the pictures but it is likel...
by Neomorph
Sat Nov 17, 2018 4:03 pm
Forum: Automation, sensing and robotics
Topic: Reading old weight scale
Replies: 124
Views: 19153

Reading old weight scale

Hello Everybody, I have an old digital weight scale sitting on my desk. The LCD broke off but other than that it's functional. I was wondering if there is a way to simply read out the information from the scale and print it to the terminal? I'm new to all of this and hope you could provide some info...

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