Crowtail-Weight Sensor

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Description

The Crowtail-Weight Sensor uses 24-bit high-precision A / D converter chip HX711, is a high-precision electronic design, with two analog channel input, the internal integrated 128-fold gain programmable Amplifier, the pressure signal into analog voltage signal after the AD module to enlarge to digital signals. The input circuit can be configured to provide bridged bridge-type (such as pressure, weighing) sensor mode, is an ideal high-precision, low-cost sampling front-end module; module output four lines,

Model:CRT94077W

Crowtail-Weight Sensor.jpg

Specification

  • Weighing pan size: 10cm × 7cm.
  • Operating voltage: 5V.
  • Working Voltage:DC 5V
  • Working Current:400mA
  • Standby current:200uA
  • Operation temperature range: -40 ~ +85℃
  • Weight sensor capacity: 3kg
  • Total height (including pillars): 3.5cm.
  • Measurement accuracy: not more than 1g.
  • Dimensions(mm):40.0(L)x20.0(W)x6.8(H)

Usage

This demo is going to show you how to read weight information from this Crowtail-Weight Sensor.

1.Hardware Connection
The Crowtail-Weight Sensor is connecting to I2C port of Crowtail - Base Shield.

Connection of Crowtail-Weight Sensor1.jpg

2.Download the hx711 Library. Unzip and put it in the libraries file of Arduino IDE by the path: ..File/arduino IDE/Arduino/library/hx711. You can also copy the following program to Arduino IDE and upload to your Arduino/Crowduino.


#include "hx711.h"

Hx711 scale(SCL, SDA);

void setup() {

  Serial.begin(9600);

}

void loop() {

  Serial.print(scale.getGram(), 1);
  Serial.println(" g");

  delay(200);
}

4.Upload it into your Arduino board and open the serial monitor to observe the weight information after put things on the weighting pan.

Result of Weight Sensor.png

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