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DIY Kitchen Scale

Weigh up to 49.05 kg∙m/s^2 with Arduino

DIY Kitchen Scale
DIY Kitchen Scale
The starting point for this article was a project posted on Elektor Labs describing the construction of a kitchen scale from an ATmega328 microcontroller, a load cell, a load cell interface board, an LCD, and some software. A bit of cutting and drilling of wood and metal was required to transform it all into a useable weighing scale.
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Materials

Gerber file

CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.

Elektor recommends the Elektor PCB Service service from its business partner Eurocircuits or AISLER as the best services for its own prototypes and volume production.

The use of our Gerber files is provided under a modified Creative Commons license. Creative Commons offers authors, scientists, educators and other creatives the freedom to handle their copyright in a more free way without losing their ownership.

PCB

Extra info / Update

* Up to 5 kgs
* OLED display
* Arduino-based

Component list

From the Store
150708-1: Kitchen scale PCB, bare
150708-71: Kitchen scale kit of all parts
Component List
Resistors
R1,R2 = 4.7kOhm
P1 = 10kOhm 15-turn trimpot
Miscellaneous
K1 = 4-way SIL pinheader socket, 0.1” pitch, horizontal
K2 = 6-way SIL pinheader socket, 0.1” pitch, horizontal
1 pc 6-pin SIL pinheader, 0.1” pitch, vertical
2 pcs 8-pin SIL pinheader, 0.1” pitch, vertical
1 pc 10-pin SIL pinheader, 0.1” pitch, vertical
S1,S2 = tactile switch, PCB side mount
HX711 breakout board
2 pcs M2×10 mm bolt
4 pcs M2 nut
PCB # 150708-1 from Elektor Store

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