In Progress

Strain Gauge (Load Cell) Interface to Raspberry Pi or Arduino

Design a PCB to read an analogue signal from a strain gauge (Load Cell) with the reading ultimately being read using a Raspberry Pi or Arduino.

The strain gauge we need to use is an H10J-15t-32-dxx Load cell.

Product Details: [login to view URL]

Product Datasheet: [login to view URL]

The problem is the small voltage coming from the strain gauge.

The strain gauge sensitivity is .045 mV/V + or - 0.05 @ 6 tonnes

We have tried various analogue to digital boards which have worked with the smaller strain gauges up to 50kg, but we need to measure accurately on this strain gauge which measures up to 15 tonnes.

We need to be able to measure within an accuracy of + or - 10 kg but would prefer to 1 kg

We need to be able to connect up to 8 load cells. This should be on one board.

We have not been able to read the small signals with the following A2D boards ADS1115, ADS1015 and MCP3008 with amplifiers.

We would like you to give a brief description of your solution identifying any components you think would be able to handle the measurement of such a small voltage.

If a board is developed or if you are going to use an existing board, then we need to be able to interface with the board using a Raspberry Pi.

We will only release funds after we have a prototype built, tested and reading the measurements accurately.

Required: -

PCB Design (Gerber file format preferred)

Component list and a Bill of Materials.

An indication of the build cost of the board and components,

Taidot: Arduino, sähkötekniikka, elektroniikka, Mikrocontroller, Piirilevyn asettelu

Näytä lisää: raspberry pi load sensor, raspberry pi weight scale, hx711 raspberry pi library, hx711 raspberry pi python code, raspberry pi bathroom scale, raspberry pi kitchen scale, raspberry pi hx711, connect digital scale to raspberry pi, C/C++, JavaScript, MySql, PHP, html/css, phyton, opencv, raspberry pi, arduino, raspberry pi,arduino, raspberry pi gui interface, arduino raspberry pi, arduino raspberry pi projects, raspberry pi interface, strain gauge interface pic, load cell summing schematic, iphone load cell, load cell amplifier design, load cell amplifier schematic, load cell amplifier

Tietoa työnantajasta:
( 7 arvostelua ) Northampton, United Kingdom

Projektin tunnus: #17354475

Myönnetty käyttäjälle:


Use instrumentation amplifier IC AD623, AD624 or some similar (gain=1000) Feed analog signal from load cell to instr amp Feed o/p of ampl into analog port of Arduino Do rest of calculations on Arduino Relevant Skills Lisää

£388 GBP 4 päivässä
(0 Arvostelua)

29 freelanceria on tarjonnut keskimäärin %project_bid_stats_avg_sub_26% %project_currencyDetails_sign_sub_27% tähän työhön

£1000 GBP 15 päivässä
(236 arvostelua)

hello I have many experience about the loadcell, HX711 and so on I have developed the SmartGass using loadcell and HX711, mega2560 thanks Relevant Skills and Experience PCB, electrical engineer Proposed Milestones £8 Lisää

£888 GBP 10 päivässä
(42 arvostelua)

I have over 35 years experience as an electronic design engineer, please see my profile for more details Ignore bid price at the moment Best Regards Dave Lelievre poole Dorset Relevant Skills and Experience I have ex Lisää

£833 GBP 10 päivässä
(26 arvostelua)

Hi There, After reading the project post we are happy to offer our services to Design, Prototype and ship the Hardware to Read the load cell. Please feel free to contact us. Best Regards, Shahbaz. Relevant Skills an Lisää

£1000 GBP 30 päivässä
(55 arvostelua)

Hi, I hope you are doing well. I have understood your project requirements which are interfacing loadcell with Arduino. I understand you have faced issue with amplifiers, Relevant Skills and Experience I have hardwa Lisää

£840 GBP 20 päivässä
(63 arvostelua)

We have already done very similar project related to these strain gauges and developed very state of the art custom boards, just check our level of quality and you will find us the right choice for u. Relevant Skills Lisää

£350 GBP 10 päivässä
(43 arvostelua)

I have read your description and understood. I have real time experience on Arduino and Raspberry Pi to build any prototype device. Relevant Skills and Experience I can design an adapter to read the small voltage sign Lisää

£750 GBP 10 päivässä
(7 arvostelua)

Hi there,I'm an electronic engineer, And i'm quiet Experienced with High Speed PCB Design and Implementation. I'm an expert in Eagle CAD,EasyEDA Relevant Skills and Experience Expert in Eagle CAD,EasyEDA and arduino Lisää

£500 GBP 3 päivässä
(10 arvostelua)
£777 GBP 15 päivässä
(1 arvostelu)

I can use a dedicated ADC with a high resolution. But we'll need to design a PCB for this, unless if you can test it on a breadboard. Relevant Skills and Experience I've designed Industrial Starndard ADC modules befor Lisää

£600 GBP 10 päivässä
(7 arvostelua)

Hello, i have read the details provided..please contact me to discuss more on the project deadline and some other few things Relevant Skills and Experience Arduino, Electrical Engineering, Electronics, Microcontroller Lisää

£250 GBP 10 päivässä
(5 arvostelua)
£333 GBP 10 päivässä
(4 arvostelua)

i made product with load cell which is similar of this type.i can provide you the best solution load cell weight meter Relevant Skills and Experience i have more than five year for product deveploment Proposed Miles Lisää

£666 GBP 30 päivässä
(3 arvostelua)

Load cells usually have an output sensitivity of 2mV/V or 3mV/V@FS. The selected load cell sensitivity is very low, you will need a custom board with instrumentation amp, ΔΣ ADC and many filters Relevant Skills and Ex Lisää

£750 GBP 14 päivässä
(1 arvostelu)
£516 GBP 13 päivässä
(0 arvostelua)
£560 GBP 10 päivässä
(0 arvostelua)

I'm a mechanical and instrumentation engineer and I have several years of experience in designing and implementing measurement systems. I can design the PCB as you require. Relevant Skills and Experience experience in Lisää

£555 GBP 10 päivässä
(0 arvostelua)
£986 GBP 10 päivässä
(0 arvostelua)

As you can see in my profile, I have great experience in C/C++, C#, and Python programming as well as Microcontroller, and Electronics. Relevant Skills and Experience Especially, I have completed many Raspberry Pi and Lisää

£555 GBP 10 päivässä
(0 arvostelua)

I can help you to make your project work... i've been work with microcontroller for almost 4 years and i want to help your project working properly.

£555 GBP 10 päivässä
(0 arvostelua)