hx711

load cell amplifier module More...

load cell amplifier module

Example :

config.h :

#ifndef _CONFIG_H_
#define _CONFIG_H_
 
// hx711 config:
#define HX711_SCK_PIN K1    // hx711 serial clock on K1 pin 
#define HX711_DATA_PIN K2   // hx711 seria data on K2 pin
 
#endif // _CONFIG_H_
 

main.c :

/*********************************************************************
 *               hx711 example for Versa1.0
 *********************************************************************/
#define BOARD Versa1
#include <fruit.h>
#include <hx711.h>
 
//----------- Setup ----------------
void setup(void) {  
    fruitInit();            
    hx711Init(0);        // init hx711 module, gainA=128
}
 
// ---------- Main loop ------------
void loop() {
    fraiseService();// listen to Fraise events
    hx711Service(); // hx711 service routine
}
 
// ---------- Receiving ------------
void fraiseReceive() // receive raw bytes
{
    int i;
    unsigned char c=fraiseGetChar();    // get first byte
    if(c == 50) {                       // if first byte is 50 
        c=fraiseGetChar();              // read channel byte
        printf("C 50 %d %ld\n", c, hx711Read(c)); // return selected channel current value
    }
}
 

Initialization
void	hx711Init (unsigned char gainA)
	Init the module in setup() More...

Main loop functions
void	hx711Service ()
	Module service routine, to be called by the main loop().

Utilities
long	hx711Read (unsigned char channel)
	Read last measure of a channel. More...

Function Documentation

hx711Init()

void hx711Init

(

unsigned char

gainA

)

Init the module in setup()

Parameters

gainA

channel A gain selection : 0=128 1=64

hx711Read()

long hx711Read

(

unsigned char

channel

)

Read last measure of a channel.

Parameters

channel

channel selection : 0=A 1=B

Returns

current measure