Gravity: HX711 Weight Sensor Kit

The weight sensor is a practical sensor close to daily life scenes. It can make many interesting applications by acquiring the weight information of objects, such as household electronic scales, daily necessities remaining alarms, and Internet of Things weighing platforms. The weight sensor and HX711 signal transfer module are already available in the DFRobot mall. However, due to the difficulty of constructing the structure, many friends cannot use this sensor based on the inability to build the structure.

This weight sensor kit reduces the difficulty of structure construction so that you can conveniently make an electronic scale, and get the weight information of the object easily. In addition, because everyone has different installation methods and usage habits, the sensor needs to be calibrated. The traditional method is to use a separate calibration code to obtain the calibration value, In order to optimize this problem, the signal transfer board in this kit has a built-in calibration algorithm, which can calibrate the weight information with one click, and there is no need to run a separate code for calibration.

Connection Diagram

• I2C communication, compatible with 3.3V and 5V
• Press one click to calibrate the weight/software API calibrate the weight
• Press one click to "tare"/software API "tare"
• With bracket kit, quick build

• Simple electronic scale
• Daily necessities remaining alarm
• Internet of Things weighing platforms

• Measuring Range: 1g-1000g
• Working Voltage: 3.3V/5V
• Working Current: ＜20mA
• AD Conversion Chip: HX711
• Synthesis Deviation: ＜±0.2% g
• Overall Dimensions after Assembly: L x W x H: 120 x 100 x 30 mm/ 4.72 x 3.94 x 1.18 inch
• Signal Transfer Board Size: 31 x 37mm / 1.22 x 1.46 inch
• Communication Method: I2C
• I2C Address: 0 x 64 / 0 x 65 / 0 x 66 / 0 x 67

• Weight sensor x1
• Signal transfer board x1
• Acrylic bracket x1
• M4x20 CM screws x2
• M5x20 CM screws x2
• M3x8 screws and nuts x2
• Trapezoidal feet x4
• Gravity-4P I2C cable x1