3 Kgs max is the weight your load cell measures. I got it.sir this is not a repeat it is a new thread sir... thanks for your response
i just look through the data sheet the rated output is 1.0±0.15mV/V3 Kgs max is the weight your load cell measures. I got it.
I didn't got the mV thing.
Mention how much mV it gives per Kg that is what is the mV/Kg of the load cell.
What kind of load cell it is that is half bridge or full bridge load cell ? Does the load cell has 3 wires or 4 wires ?
What kind of keypad do you want to use ? 4x4 keypad ?
Do you have a circuit or should I make the circuit ?
Can you use HX711 module for the weighing scale ? HX711 is made specifically for load cell measurement.
Use PIC18F46K22. I will give you a good code. PIC16F877A has very less RAM and I don't prefer to write code for 16F devices.
Do you want password protection feature for weighing scale ? That is
User has to enter 3 digit password and if the password is correct it allows the user to change the password or do calibration of the weighing scale.
For doing calibration you have to press C button and then it enters calibration mode. Here if weighing scale is showing 0.125 Kgs then you can press # button to set it as 0 Kg and then you have to place a know weight of say 1 kg and then it shows some raw value like 834567 and you have to press # key and then enter value 1 and then press * key. This will calculate the scaling factor and converts 834567 into 1 kg and stores the scaling factor and zero factor in eeprom and then it comes out of the calibration mode.
Now if you place any weight then it shows the exact weight on the LCD display.
i just look through the data sheet the rated output is 1.0±0.15mV/V
it is a full bridge it has four wires
keypad is 4x3...
make me a circuit so it will have a good output
yes i want to use it . u can add other amp..
and put the password
if u can help me with both also good , but i want the one u can write best with i mean the PIC.18f and 16f
1.0±0.15mV/V per Kg ?i just look through the data sheet the rated output is 1.0±0.15mV/V
@ericgibbsthe h7x11 maximum volts for the load cell exictation is 5v.. the exictation is maximum for the the loadcell
5v excitation for 3kg
// LCD module connections sbit LCD_RS at RB4_bit; sbit LCD_EN at RB5_bit; sbit LCD_D4 at RB0_bit; sbit LCD_D5 at RB1_bit; sbit LCD_D6 at RB2_bit; sbit LCD_D7 at RB3_bit; sbit LCD_RS_Direction at TRISB4_bit; sbit LCD_EN_Direction at TRISB5_bit; sbit LCD_D4_Direction at TRISB0_bit; sbit LCD_D5_Direction at TRISB1_bit; sbit LCD_D6_Direction at TRISB2_bit; sbit LCD_D7_Direction at TRISB3_bit; // End LCD module connections //HX711 Connections sbit HX711_SCLK at RE0_bit; sbit HX711_DOUT at RE1_bit; sbit HX711_SCLK_Direction at TRISE0_bit; sbit HX711_DOUT_Direction at TRISE1_bit;
I have already posted the .hex file in my previous post. Give the raw reading it shows on line 2 of LCD for no weight.you can do this to make the work faster
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