I have very good knowledge of Different famalies of Microcontroller and also am in this field write from 2 year.
I want to make my system with lowest cost and batter performance for that i have to be smart chooser for component of my project.
I want to ask some questions to the people who have worked in this field:
1) I think 8051 is the batter choice but many companies have this series so please can you guide me which 8051 will be my smart choice? or I have to think abt some other families like PIC or any other else...
2) I think i have to use Load Cell and many types of load cell available in market so also friend can you guide me regards this selection ? or I have to think other other than load cell ?
3) If you alredy make any project which is directly or indirectly similar to this than please provide me document or code.. i will be very thank full to you ...
Please if you have any information regards any of 3 points menson above than please guide me.. I am confused...
you can use 89s51 , from atmel company ,
about load cell , i don't know much about the model and ..., but it is not such a difficult choice , just choose which has linear output and enough sensitivity ...
you also can use AVR or PIC series which has analog to digital convertor , ADC on chip ....
See.. I have One Electronics Weight Measurement Instrument Which i buy from another some vendor in the market which Mesure Weight By using its loadcell and driven By 89C51 ..
Now I have done R&D and find out some faults or Batter Solutions like instead of 7 segment display i am going to use 2 line LCD and menu driven display in it .. etc. and i want to make NEW Instrument that i will manufacture in future, has low prize and batter performance..
If some one find that XYZ 8051 series IC is good and low prize or any information or Causion!! before i start project... Then plz infrom me abt it...
I made weight with AduC845 (2x16LCD, 4-20mA, RS232/RS485, 4xkeypress, 4opto IN, 4relay OUT and real clock with PCF).
You connect 2 load cells (6-wire). AduC845 has to 24bit A/C and DAC, min real value voltage is 1-5uV.
1.) Project may cost different for every country, you know, availability of parts, shipping and taxes.
2.) Load cell depends on your requirements and load cell specifications, I am not experienced with load cells but I think they have diferent specs also.
3.) I think the code module you need is the basic adc codes that almost every member here can answer.
I am also interested on building single axis weight measuring system.
is any one know where can i find prices of load cells?
(i have visited many companies but not able to find the prices of them )
any gauss of prices!!!!!!!!!