darkyendor/fx29k_for_arduino

An Arduino library for FX29K/FX29J digital load cells.

FX29K_for_Arduino

An Arduino library for the FX29K digital load cells.

Compatibility

Supported models:

• FX29Kx-xxxx-xxxx-L (Tested on an FX29K0-040B-0010-L)
• FX29Jx-xxxx-xxxx-L (Not tested)

FX292 and FX293 analog load cells are NOT supported.

Quick start

Minimal setup

   RED ---------- VCC (2.7-5.5V)
YELLOW ---------- SCL
 WHITE ---------- SDA
 BLACK ---------- GND

Installation

• Download this repository as a .zip file.
• In Arduino IDE, navigate to Sketch > Include library > Add .zip library.
• Select the downloaded .zip file.

Main Program

Include

• In your .ino file, include FX29K.h:

#include "FX29K.h"

Declaration

• Declare your FX29K object globally, with constructors:

FX29K::FX29K(uint8_t addr, uint8_t range);
FX29K::FX29K(uint8_t addr, uint8_t range, TwoWire* i2cPtr);

• For example, for FX29K0-040B-0010-L:

FX29K fx29k(FX29K0, 0010, &Wire);

Initialization

• Tare load cell with:

void FX29K::tare(void);
void FX29K::tare(uint16_t samples);

Measurement

• Read raw wheatstone bridge data with:

uint16_t FX29K::getRawBridgeData(void);

• Get one measurement:

float FX29K::getPounds(void);
float FX29K::getKilograms(void);
float FX29K::getGrams(void);

Misc

• Refer to ./FX29K_for_Arduino.ino and datasheets for further information.